The world of Golisi batteries

Q: How should I charge Li-Ion batteries correctly and gently?

Ideally keep the charge between 30–80%, avoid heat, and use an intelligent charger that detects the battery type and adjusts the current accordingly.

Q: How should I store batteries properly to make them last longer?

For longer breaks, store at about 40–60% charge, in a cool and dry place between 5–20 °C, and check the wrap and terminals regularly.

Q: How can I recognise wear or a defect – and what should I do?

A damaged wrap, noticeable bumps, corrosion, or unusual heating are warning signs. Do not continue using such batteries and have them professionally inspected.

The large world of Golisi batteries offers a wide variety of rechargeable batteries in different sizes and performance classes. Golisi batteries are versatile and provide reliable support in your project. All Golisi batteries have various features that are designed for safe, efficient and long-lasting use.

18350 Akkus

18650 Akkus

20700 Akkus

21700 Akkus

AA Akkus

G-Series

Whether in model building, with flashlights or in other daily use - the batteries of the G series from Golisi deliver up to 40% capacity constantly and reliably up to 20A and provide you with a lot of power safely and efficiently!

Pro Series

The batteries in the Pro series get the most out of the 18650, 20700 and 21700 sizes and work at their maximum performance. Our TÜV-certified batteries S26 and S30 output maximum power right up to the end and thus deliver constant output power of up to 25A and peaks of up to 35A! With our 20700 and 21700 batteries S32 and S35 you get even more capacity. More? It just doesn't work!

Other sizes

Golisi offers all sizes of industrial cells. From our smallest but no less powerful S11 battery in the 18350 format to our endurance champion S43 in the 26650 category, Golisi batteries all compete under the same premise - to be efficient, safe and economical power storage.

L35 18650 Battery

18650 10A CDC 3500mAh Nominal Peak 20A The 18650 with real 3500mAh The Golisi L35 battery has been developed for low power ranges. With 3500mAh capacity, it gets the most out of the 18650 size. The ingenious design inside the L35 battery enables a corresponding number of individual cells, so that real 3500mAh can be used. It keeps 10A constant output power even with a capacity of up to under 30%. Charging was (before) yesterday With the L35, it is sometimes difficult to remember the last charging process - depending on the performance required, this can be a few days ago. With a constant 10A, the output in the upper range is 37 - 30 watts - the L35 battery absorbs peaks with up to 20A. The L35 battery is thus the ideal power source for consumers with low power. Safety The L35 battery shares the same features that characterize the entire Golisi battery family. A robust construction paired with the extra thick shrink tube protects against unwanted, external influences. The integrated short-circuit protection also takes effect at lower power levels and ensures additional safety in addition to that of the consumer. In addition, each L35 battery comes with a battery transport box for two 18650 batteries so that you can always transport it safely. Sustainability Like all our products, the Golisi L35 is designed for long and reliable use. The efficient construction allows up to 800 charging cycles, which simply makes it longer usable. The packaging, which is made from 99.9% recyclable materials, underlines this claim. TÜV tested The Golisi L35 battery is TÜV Rheinland certified. This underlines the performance of the L35. This is preceded by numerous tests and examinations of the battery itself and the production environment. Regular testing of the production process is also a central part of the certification. You can get more information here. Details Battery type: IMR 18650 Nominal capacity: 3500 mAh Constant discharge current: 10 Ampère power range: 37W (3,7V*10A) until 30W (3,0V*10A) Nominal voltage: 3,7 Volt Discharge voltage: 2,75 Volt Charging voltage: 4,20±0,05 Volt Internal resistance: 30mΩ Standard charging technology: CC/CV (<=2A) Charging time: Approx. 1.5 hours (with Golisi charger) Service life: Up to 800 charging cycles Working temperature charging: 0 - 45°C Working temperature discharging: -20 - 60°C Storage temperature: Room temperature Size (height x diameter): Ca. 65mm x 18mm Weight: Approx 46g Safety: TÜV Rheinland, CE, FCC, MSDS, WEEE, UN38.3, IEC62133 Drop test Scope of delivery 1x Golisi L35 battery including battery transport box Product data sheet Here you can view and download the product data sheet for this item. Safety instructions Keep this battery away from fire and water! Do not use this battery outside of the specified temperature ranges. Children should not use this product without parental supervision. Li-Io cells should only be operated with protective electronics. Incorrect use or short-circuiting can result in fire or an explosion.

€10.99*

Details

S32 20700 Battery

20700 30A CDC 3200mAh Nominal Peak 40A Larger = More The Golisi S32 is our answer to the question of an efficient 20700 battery! Due to its slightly larger design, the S32 can simply do more than a smaller battery. The S32 uses the Golisi-typical profitable construction and brings maximum values in the 20700 size! With a constant output power of 30A, it combines strength with endurance with a view to a whopping 3200mAh. For the hunger for energy The Golisi S32 battery delivers a constant output of 30A and absorbs peaks of up to 40A. It thus provides an upper performance range from 111 to 90 watts and is ideal for energy-intensive applications. It maintains these values even at a capacity of <40%. Due to these performance values, batteries of this size are becoming increasingly interesting for the end user as well as for industry. The battery protects itself The S32 battery has all the features of a Golisi battery. So we attach great importance to countering external influences with a particularly robust construction and the extra thick shrink tube. Short-circuit protection is also integrated under the cover, which prevents overvoltages from your consumer if they are not intercepted. Thinking ahead The S32 battery has been certified with various tests and certificates that it meets our requirements. Tests such as the IEC62133 drop test show that it is robust and can take a lot. In addition, the S32 is sustainably constructed and developed for up to 800 charging cycles, so that it will provide a long service life. 99.9% recyclable packaging means less wasted resources. The S32 battery always comes with a battery transport box for two 20700/21700 batteries, so that you can transport your batteries safely. Details Battery type: IMR 20700 Nominal capacity: 3200 mAh Constant discharge current: 30 Ampère Power range: 111W (3,7V*30A) bis 90W (3,0V*30A) Maximum discharge current: 40A Nominal voltage: 3,7 Volt Discharge voltage: 2,75 Volt Charging voltage: 4,20±0,05 Volt Internal resistance: 12mΩ Standard charging technology: CC/CV (<=3A) Charging time: Approx. 2.0 hours (with Golisi charger) Lifespan: >800 charge cycles Working temperature charging: 0 - 45°C Working temperature discharging: -20 - 60°C Storage temperature: Room temperature Size (height x diameter): Ca. 70mm x 20mm Weight: Ca. 74g Safety: CE, FCC, MSDS, WEEE, UN38.3, IEC62133 Drop test Scope of delivery 1x Golisi S32 battery including battery transport box Safety instructions Keep this battery away from fire and water! Do not use this battery outside of the specified temperature ranges. Children should not use this product without parental supervision. Li-Io cells should only be operated with protective electronics. Incorrect use or short-circuiting can result in fire or an explosion.

€14.99*

S30 18650 Battery

18650 25A CDC 3000mAh Nominal Peak 35A The performance king The Golisi S30 battery is a member of our Pro series and combines maximum performance with 18650 size. It always delivers maximum performance - up to a capacity of 3000mAh. With a constant output power of up to 25A and peaks of over 35A, the Golisi S30 is not only the ideal companion for performance-hungry projects - the S30 also proves to be safer with the appropriate buffer for applications that do not necessarily require this performance Energy supplier. Enduring and long-lasting With a nominal capacity of 3000mAh, the S30 battery has great endurance. With a maximum power output of 92.5 to 75 watts at 25A, the S30 delivers maximum values. Thanks to its efficient design, the S30 battery is also designed for up to 800 charging cycles. Safe Energy The Golisi S30 battery is - like all Golisi batteries - equipped with special features that guarantee the use of the battery with the greatest possible safety. An extra strong casing ensures that the Golisi S30 battery can be used for longer and even with a shock; sometimes does not have to be replaced immediately. An integrated short-circuit protection provides additional security - should this function fail at your consumer. TÜV tested With its certificate, TÜV Rheinland confirms that we meet our requirements for the S30 battery. You can find more information about this here. Well thought out The Golisi S30 comes in a recyclable outer packaging and a battery transport box for two 18650 batteries. Please never transport your batteries without a box! Details Battery type: 18650, aufladbar Nominal capacity: 3000 mAh Constant discharge current: 25 Ampère power range: 92,5W (3,7V*25A) until 75W (3,0V*25A) Nominal voltage: 3,7 Volt Discharge voltage: 2,75 Volt Charging voltage: 4,20±0,05 Volt Internal resistance: 30mΩ Standard charging technology: CC/CV (<=2A) Charging time: Approx. 1.5 hours (with Golisi charger at 1A) Lifespan: >800 charge cycles Working temperature charging: 0 - 45°C Working temperature discharging: -20 - 60°C Storage temperature: Room temperature Size (height x diameter): Approx 65mm x 18mm Weight: Approx 46g Safety: TÜV Rheinland, CE, FCC, MSDS, WEEE, UN38.3, IEC62133 Drop test Scope of delivery 1x Golisi S30 battery including battery transport box Product data sheet Here you can view and download the product data sheet for this item. Safety instructions Keep this battery away from fire and water! Do not use this battery outside of the specified temperature ranges. Children should not use this product without parental supervision. Li-Io cells should only be operated with protective electronics. Incorrect use or short-circuiting can result in fire or an explosion.

€12.49*

G30 18650 Battery

18650 20A CDC 3000mAh Nominal Peak 30A The everyday companion With the Golisi G30 battery you are well positioned in everyday life. The battery enables a constant, enduring performance of 20A up to a capacity limit of less than 20%. The G30 thus achieves an output of 74 to 60 watts (3.7V*20A // 3.0V*20A) and is therefore a reliable companion wherever stamina is required with corresponding voltages in the lower range . More capacity is not possible The G30 battery has a nominal capacity of 3000mAh and is therefore excellently equipped for a high work capacity. The sophisticated design of the individual cells enables a life cycle of up to 800 charging processes. Safety first Like all Golisi batteries, the Golisi G30 battery has special features that make it ideal for everyday use. A particularly robust construction with an extra thick protective cover makes it less prone to scratches or dents that can result from a fall or frequent loading and unloading in a charger. In addition, an integrated short-circuit protection, which takes effect if the protection of the consumer fails, is another guarantee for safe use. TÜV tested The Golisi G30 has been tested and certified as part of various studies by TÜV Rheinland. Regular production monitoring is also part of the testing process, which the TÜV Rheinland certifies with its seal. You can find more information about this here. Foresighted The packaging of the G30 is recyclable and therefore sustainable. The G30 is delivered in a battery transport box for two 18650 batteries so that you always have a safe transport option. Please never transport batteries without a box! Details Battery type: IMR 18650 Nominal capacity: 3000 mAh Constant discharge current: 20 Ampère Power range: 74W (3,7V*20A) until 60W (3,0*20A) Nominal voltage: 3,7 Volt Discharge voltage: 2,75 Volt Charging voltage: 4,20±0,05 Volt Internal resistance: 30mΩ Standard charging technology: CC/CV (<=2A) Charging time: Approx. 1.5 hours (with Golisi charger) Lifespan: >800 charge cycles Working temperature charging: 0 - 45°C working temperature discharging: -20 - 60°C Lagerungstemperatur: Raumtemperatur Size (height x diameter): Approx 65mm x 18mm Weight: Approx 46g Safety: TÜV Rheinland, CE, FCC, MSDS, WEEE, UN38.3, IEC62133 Drop test Scope of delivery 1x Golisi G30 battery including battery transport box Product data sheet Here you can view and download the product data sheet for this item. Safety instructions Keep this battery away from fire and water! Do not use this battery outside of the specified temperature ranges. Children should not use this product without parental supervision. Li-Io cells should only be operated with protective electronics. Incorrect use or short-circuiting can result in fire or an explosion.

€9.99*

G25 18650 Battery

18650 20A CDC 2500mAh Nominal Peak 30A For faithful service The G25 is a rechargeable 18650 battery that is economical and designed for reliable and long-lasting use. With 2500mAh capacity, it stays upright for a long time and delivers a constant output of up to 20A - even if the capacity drops below 40%. It absorbs peaks responsibly with up to 30A, with a buffer providing additional safety. With maximum voltages of 74 to 60 watts at 20A, it will reward you with loyal use. Efficiency meets performance The G25 battery is an economical and at the same time high-performance battery - with a nominal capacity of 2500mAh, it brings enough energy with it. The Golisi design also allows up to 800 charging processes and thus longer use. Safe like the whole family All Golisi batteries have unique features that promote safe use. The G25 battery also has a particularly robust design and an extra thick casing, which better protects it from damage. The short-circuit protection, which has been integrated into a battery for the first time, takes effect when the protection is selected by the consumer and provides additional confidence. TÜV tested TÜV Rheinland certifies our requirements for a 18650 battery for the G25 battery. Extensive tests and investigations confirm that the G25 battery is a very special battery. Regular production monitoring ensures that this remains the case. You can find more information about this here. Sustainability The G25 comes to your home in recyclable packaging. A battery transport box for two 18650 batteries is also included. This is how you transport your batteries safely and without risk. Details Battery type: IMR 18650 Nominal capacity: 2500 mAh Constant discharge current: 20 Ampère Power range: 74W (3,7V*20A) until 60W (3,0V*20A) Nominal voltage: 3,7 Volt Discharge voltage: 2,75 Volt Charging voltage: 4,20±0,05 Volt Internal resistance: 30mΩ Standard charging technology: CC/CV (<=2A) Charging time: Approx 1.5 hours (with Golisi charger) Lifespan: >800 charge cycles Working temperature charging: 0 - 45°C Working temperature discharging: -20 - 60°C Storage temperature: Room temperature Size (height x diameter): Approx 65mm x 18mm Weight: Approx 46g Safety: TÜV Rheinland, CE, FCC, MSDS, WEEE, UN38.3, IEC62133 Drop test Scope of delivery 1x Golisi G25 battery including battery transport box Product data sheet Here you can view and download the product data sheet for this item. Safety instructions Keep this battery away from fire and water! Do not use this battery outside of the specified temperature ranges. Children should not use this product without parental supervision. Li-Io cells should only be operated with protective electronics. Incorrect use or short-circuiting can result in fire or an explosion.

€7.49*

S20 AA Battery (2-Pack)

€39.98*

S11 18350 Battery

18350 11A CDC 1100mAh Nominal The 18350 Champion With the Golisi S11 we don't just want to present an 18350 battery - a nominal capacity of 1100mAh with a constant output of 11A gets the maximum out of this design! So small and yet so long - this makes the S11 battery the ideal power supplier for projects where size and weight are important. And you don't have to do without performance! Limit reached With the S11 we get the most out of the 18350 series. Efficient construction of the individual cells enables a power of 40.7 - 33 watts at a constant discharge current of 11A with this small battery size, whereby of course a buffer for peaks was also taken into account. The S11 was built in such a way that moderate temperature development is guaranteed during normal use. In addition, the S11 battery is also designed for long-lasting use and more charging processes. Thinking outside the box The small size is truly a challenge - but the S11 has the Golisi-typical safety features that make it a reliable energy supplier. An extra thick casing with the same size (18mm diameter) provides protection from the outside - from the inside, the integrated short-circuit protection ensures that malfunctions of an electrical consumer are intercepted. Think more The S11 battery is well thought-out and meets all the requirements for a safe and long-lasting battery. Numerous tests, investigations and certificates show that the S11 withstands many external and internal influences and was built for a long service life. It is also delivered in recyclable packaging. Details Battery type: IMR 18350 Nominal capacity: 1100 mAh Constant discharge current: 11 Ampère Power range: 40,7W (3,7V*11A) bis 33W (3,0V*11A) Nominal voltage: 3,7 Volt Discharge voltage: 2,75 Volt Charging voltage: 4,20±0,05 Volt Standard charging technology: CC/CV (<=2A) Charging time: Approx. 1.0 hours (with Golisi charger) Service life: up to 800 charging cycles Working temperature charging: 0 - 45°C Working temperature discharging: -20 - 60°C Storage temperature: Room temperature Size (height x diameter): Ca. 35mm x 18mm Weight: Ca. 32g Safety: CE, FCC, MSDS, WEEE, UN38.3, IEC62133 Drop test Scope of delivery 1x Golisi S11 battery Safety instructions Keep this battery away from fire and water! Do not use this battery outside of the specified temperature ranges. Children should not use this product without parental supervision. Li-Io cells should only be operated with protective electronics. Incorrect use or short-circuiting can result in fire or an explosion.

€5.99*

L30 18650 Battery

18650-BatteryCDR 10A / Max 15A3000mAh nominalEconomical endurance battery The Golisi L30 battery is an economical battery that offers a capacity of up to 3000mAh for less powerful projects. With a constant output power of 10A, it still delivers full power with a maximum demand of 37-30 watts up to a battery level of less than 30% and is therefore a strong partner for your project. Safety Like all Golisi batteries, the L30 battery has a particularly robust design. In combination with the extra thick coating, it offers special protection against unwanted external influences. A Golisi L30 battery is always delivered with a battery transport box for two 18650 batteries, so that the safe transport of your batteries is guaranteed. Sustainability The Golisi L30 - like all of our products - is designed for long and reliable use. The efficient design allows for up to 800 charging cycles, which simply makes it usable for longer. The packaging, which is made from 99.9% recyclable materials, underlines this claim. DetailsBattery type: IMR 18650 Nominal Capacity: 3000mAh Constant discharge current: 10 amps Power range: 37W (3.7V*10A) to 30W (3.0V*10A) Nominal voltage: 3.7 volts Discharge voltage: 2.75 volts Charging voltage: 4.20±0.05 volts Internal resistance: 30mΩ Standard charging technology: CC/CV (<=2A) Service life: up to 800 charging cycles Working temperature charging: 0 - 45°C Working temperature discharging: -20 - 60°C Storage temperature: room temperature Size (Height x Diameter): Approx. 65mm x 18mm Weight: Approx. 46g Safety: CE, FCC, MSDS, WEEE, UN38.3, IEC62133 drop test Scope of delivery 1x Golisi L30 battery including battery transport box Safety instructions Keep this battery away from fire and water! Do not use this battery outside the specified temperature ranges. Children should not use this product without parental supervision. Li-Io cells should only be operated with protective electronics. Incorrect use or short circuit can lead to fire or explosion. Check your batteries regularly for damage. Immediately stop using batteries with deformations such as dents or bumps or damage to the insulation. If necessary, please ask us.

€8.99*

Details

L50 21700 Battery

21700-BatteryCDR 15A / Max 25A5000mAh nominalReached the maximum The L50 battery is the endurance champion among the 21700 style batteries and is designed for projects that require lower performance. With a whopping 5000mAh capacity, it is not so easy to get down with a maximum output of 55.5-45 watts and, with its constant output power of 15A, it ensures that your project doesn't run out of juice so quickly up to a battery level of less than 30%! Battery safety At Golisi, special emphasis is placed on longevity and safety. The L50 is characterized by its exceptionally robust construction, which is already visible from the outside. An additional thick cover protects it if it accidentally falls. This design also delays the insertion and removal of the battery from chargers, which can normally lead to rapid wear of the heat shrink tubing at the ends. Aside from that... The L50 battery is designed for long-term use and keeps its promise of reliable and safe energy delivery, even with a life cycle of over 800 charging cycles. Packaging that consists of 99.9% recyclable materials and contains no air also makes the “surroundings” a useful addition. In addition, with each L50 battery you will receive a battery transport box for two 20700/21700 batteries. Please never transport your batteries loosely and always use a transport box. DetailsBattery type: IMR 21700 Nominal Capacity: 5000mAh Constant discharge current: 15 amps Nominal voltage: 3.7 volts Discharge voltage: 2.5 volts Charging voltage: 4.20±0.05 volts Internal resistance: 28mΩ Standard charging technology: CC/CV (<=2A) Lifespan: >800 charging cycles Working temperature charging: 0 - 45°C Working temperature unloading: -20 - 60°C Storage temperature: room temperature Size (Height x Diameter): Approx. 70mm x 21mm Weight: Approx. 86g Safety: CE, FCC, MSDS, WEEE, UN38.3, IEC62133 drop test Scope of delivery 1x Golisi L50 battery including battery transport box Safety instructions Keep this battery away from fire and water! Do not use this battery outside the specified temperature ranges. Children should not use this product without parental supervision. Li-Io cells should only be operated with protective electronics. Incorrect use or short circuit can lead to fire or explosion. Check your batteries regularly for damage. Immediately stop using batteries with deformations such as dents or bumps or damage to the insulation. If necessary, please feel free to ask us.

€14.99*

Details

S26 18650 Battery

18650 25A CDC 2600mAh Nominal Peak 35A The best of two properties With the Golisi S26 you get a rechargeable battery that makes the most of maximum capacity with high power outputs. The Golisi S26 is particularly suitable for projects that require power. With values of 25A and 35A (constant/peak) it still has enough reserves to absorb peaks. 2600mAh capacity ensure a lot of staying power. The S26 is able to keep the performance constant up to <40% capacity and ensure that your project runs smoothly. Convincing values A nominal capacity of 2600mAh ensures that the power does not run out so quickly, even with demanding requirements. The S26 works at a maximum power output of 92.5W up to 75W (3.7V*25A // 3.0V*25A). In addition, the Golisi is a reliable companion with up to 800 charging cycles. Safe energy The S26 battery from Golisi is designed for safe use - numerous features such as a particularly strong casing or integrated short-circuit protection make the Golisi a safe bet even in high-performance applications. TÜV tested The Golisi S26 has been assessed and certified by TÜV Rheinland. You can find more information about this here. Well thought out The Golisi S26 comes in a recyclable outer packaging and a battery transport box for two 18650 batteries. Please always use this box for safe battery transport! Details Battery type: IMR 18650 Nominal capacity: 2600 mAh Constant discharge current: 25 Ampère Power range: 92,5W (3,7V*25) bis 75W (3,0*25A) Nominal voltage: 3,7 Volt Discharge voltage: 2,75 Volt Charging voltage: 4,20±0,05 Volt Internal resistance: 30mΩ Standard charging technology: CC/CV (<=2A) Charging time: Approx. 1.5 hours (with Golisi charger) Lifespan: >800 Charging cycles Working temperature charging: 0 - 45°C Working temperature discharging: -20 - 60°C Storage temperature: Room temperature Size (height x diameter): Ca. 65mm x 18mm Weight: Ca. 46g Safety: TÜV Rheinland, CE, FCC, MSDS, WEEE, UN38.3, IEC62133 Drop test Scope of delivery 1x Golisi S26 Battery including Battery Transport Box Product Data Sheet Here you can view and download the product data sheet for this item. Safety Instructions Keep this battery away from fire and water! Do not use this battery outside of the specified temperature ranges. Children should not use this product without parental supervision. Li-Io cells should only be operated with protective electronics. Incorrect use or short-circuiting can result in fire or an explosion.

€10.49*

G22 18650 Battery

18650 20A CDC 2200mAh Nominal Peak 30A Ideal entry-level battery With the G22 we present our entry-level battery in 18650 format. The G22 is economical, but doesn't have to hide when it comes to values. With 2200mAh it has a lot of capacity. With a constant output power of 20A and peaks of 30A, these are values with which you can make a difference. Quality does not have to be expensive Despite the entry-level price, the G22 is not stingy with its values. With an output of 74 to 60 watts at 20A, it cuts a TOP figure in connection with the capacity of 2200mAh, especially at lower outputs. Thanks to the proven Golisi construction, the G22 battery is designed for up to 800 charging processes and therefore simply lasts longer. Not skimped on security Despite its entry-level character, the G22 battery - like the entire Golisi battery family - has additional features that nominate it for safe use. A resistant construction, particularly visible through the extra thick shrink tube, protects the G22 from external influences. An integrated short-circuit protection provides additional security in the event of malfunctions on the part of the consumer. Our claim All Golisi batteries have been created with the aim of offering safe and sustainable products for electrical consumers. Regular production monitoring ensures that we always deliver consistent quality. In addition, various reports and tests such as the UN38.3 examination, the IEC62133 drop test or a certificate of fitness to fly and much more certify that our batteries deliver what they promise. Ecological has to be The G22 should be your economical entry into the 18650 battery world. Nevertheless, sustainability must not be neglected. Regardless of the longer lifespan of the G22 battery, it comes in bespoke packaging that is 99.9% recyclable. Details Battery type: IMR 18650 Nominal capacity: 2200 mAh Constant discharge current: 20 Ampère Power range: 74W (3,7V*20A) until 60W (3,0V*20A) Nominal voltage: 3,7 Volt Discharge voltage: 2,75 Volt Charging voltage: 4,20±0,05 Volt Internal resistance: 30mΩ Standard charging technology: CC/CV (<=2A) Charging time: Approx 1.5 hours (with Golisi charger) Lifespan: >800 charge cycles Working temperature charging: 0 - 45°C Working temperature discharging: -20 - 60°C Storage temperature: Room temperature Size (height x diameter): Approx 65mm x 18mm Weight: Approx 46g Safety: CE, FCC, MSDS, WEEE, UN38.3, IEC62133 Drop test Scope of delivery 1x Golisi G22 battery including battery transport box Safety instructions Keep this battery away from fire and water! Do not use this battery outside of the specified temperature ranges. Children should not use this product without parental supervision. Li-Io cells should only be operated with protective electronics. Incorrect use or short-circuiting can result in fire or an explosion.

€6.49*

As a source of energy, electricity will play an important role in the distribution of resources in the future. With a view to ever-improving processes for manufacturing rechargeable batteries, electricity is an environmentally friendly source of energy that can be generated in a variety of environmentally friendly ways. With the right rechargeable battery from Golisi, it all comes together! We combine the highest performance with an economical and long-lasting application. Regardless of the careful procurement of resources and constantly optimized production, a Golisi battery has a significantly higher number of charging cycles before it reaches the end of its life. Environmentally friendly materials right down to the packaging, which was designed without wasting space and thus unnecessary additional burdens, underline the claim. You can buy air somewhere else!

TÜV-Rheinland certified

TÜV Rheinland confirms our claim for our G25, G30, L35 as well as S26 and S30 batteries. In a process that lasted more than a year, it was confirmed that Golisi batteries work according to the specifications and provide you with reliable support. The specified performance is extensively checked and tested in numerous investigations and tests on the current output and capacity. The batteries from Golisi also had to show in endurance and drop tests, for example, that they are safe and simply have more to offer. The manufacturing process was also examined and tested as part of various factory tours and assessments of our production facilities. Regular monitoring of production is a key part of this.

Packaging and transport

All Golisi batteries are offered to the end consumer in neat packaging made from recyclable materials. This protects and informs about the purchased product. In addition, each battery offered by Golisi always comes with a battery transport box (not with the S11), so that you can transport your batteries safely on the go.

Rugged case

All Golisi batteries are equipped with a particularly thick and durable shrink tube. Especially with daily use, the shrink tube protects against wear and tear and thus supports long-lasting use. A Golisi battery is no bigger than a comparable battery.

Extra Features of GOLISI Batteries

Golisi goes the extra mile to ensure its rechargeable batteries deliver maximum safety and reliability. Advanced temperature resistance keeps the cells cool even during peak performance, while realistic performance ratings provide transparency and an added safety margin for peace of mind.

G22 18650 Battery

€6.49*

G25 18650 Battery

€7.49*

G30 18650 Battery

€9.99*

L30 18650 Battery

€8.99*

Details

L35 18650 Battery

€10.99*

Details

L50 21700 Battery

€14.99*

Details

S11 18350 Battery

€5.99*

S20 AA Battery (2-Pack)

€39.98*

S26 18650 Battery

€10.49*

S30 18650 Battery

€12.49*

S32 20700 Battery

€14.99*

S35 21700 Battery

21700 30A CDC 3750mAh Nominal Peak 40A More is simply not possible The Golisi S35 battery meets the demands of increasingly powerful energy suppliers and is our offer on the 21700 battery market. With a size of 21x70mm (diameter x height) and a weight of 46g, it is still interesting for more compact applications and delivers top values! A constant output power of 30A and peaks of up to 40A ensure appropriate performance and safety. A powerful battery with a strong 3750mAh capacity ensures long-lasting use until the next charge. Wow In the upper range of power output, 111 to 90 watts at 30A are no problem for the S35. The S35 battery maintains this power through an efficient design down to a capacity of 40% before it slowly collapses. In lower ranges, it always amazes with a view of the full 3750mAh endurance if it still doesn't have to be connected to the mains. In addition, the S35 can be charged more often - Up to 800 charging cycles guarantee a long service life in connection with the large battery. Battery safety All Golisi batteries are developed with long and safe use in mind. The S35 has a particularly robust design that starts on the outside. An extra thick casing secures it should it fall down. This also delays the insertion and removal of the battery from chargers, which is known for rapid wear of the shrink tube, especially at the ends. Inside, an integrated short-circuit protection serves as an additional security guarantee. And otherwise? Numerous investigations and tests certify the Golisi S32's specifications and our claim. A packaging that consists of 99.9% recyclable materials and does not contain any air also makes the "trappings" a useful addition. In addition, you will receive a battery transport box for two 20700/21700 batteries with each S35 battery. Please never transport your batteries loose and always use a transport box. Details Battery type: IMR 21700 Nominal capacity: 3750 mAh Constant discharge current: 30 Ampère Nominal voltage: 3,7 Volt Discharge voltage: 2,75 Volt Charging voltage: 4,20±0,05 Volt Internal resistance: 30mΩ Standard charging technology: CC/CV (<=2A) Charging time: Approx. 1.5 hours (with Golisi charger) Lifespan: >800 charge cycles Working temperature charging: 0 - 45°C Working temperature discharging: -20 - 60°C Storage temperature: room temperature Size (height x diameter): Ca. 70mm x 21mm Weight: Ca. 46g Safety: CE, FCC, MSDS, WEEE, UN38.3, IEC62133 Drop test Scope of delivery 1x Golisi S35 battery including battery transport box Safety instructions Keep this battery away from fire and water! Do not use this battery outside of the specified temperature ranges. Children should not use this product without parental supervision. Li-Io cells should only be operated with protective electronics. Incorrect use or short-circuiting can result in fire or an explosion.

€15.99*

Frequently Asked Questions about Li-Ion Batteries

Which battery size is the right one (18350, 18650, 20700, 21700, 26650, AA)?

Choose the size according to your device and available space: 18350, 18650 for many torches and compact projects, 20700/21700 for more capacity and power, and 26650 for maximum endurance. In our overview, you can find the right models for each use case.

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How should I charge Li-Ion batteries correctly and gently?

Charging range: Ideally keep the charge between about 30–80% in daily use.
Temperature: Do not charge or store in hot environments.
Charger: An intelligent charger detects the battery type and adjusts the current accordingly.

Tip: Use a suitable smart charger for maximum safety and service life.

How should I store batteries properly to make them last longer?

Charge level: For longer breaks, store them at about 40–60% charge.
Cool & dry: Ideally between 5–20 °C; avoid direct sunlight.
Regular checks: Inspect the wrapping/sleeve and terminals for damage.

How can I recognise wear or a defect – and what should I do?

Warning signs of a faulty battery include a damaged wrap, noticeable bumps, corrosion on the terminals, or unusual heating. In such cases, do not continue using the battery and have it checked by a professional. We can help you find a suitable replacement battery.