18650 Battery from Golisi

18650 batteries from Golisi stand for reliable performance, durable cell technology, and high safety standards. The 18650 format is ideal for tools, lamps, technology, and energy applications. The Golisi battery series offers a range of capacities and performance profiles – from efficient all-round cells to high-performance variants. Selected models are also tested and certified by TÜV Rheinland. Find the right 18650 battery for your application here.

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*

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*

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*

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

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*

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*

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*

18650 batteries from Golisi: safe, smart, and high-quality cells directly from the manufacturer – with German TÜV certification as a strong unique selling point. Designed with sustainability in mind, recyclable packaging, and including a transport box for safe handling on the go.

Buy 18650 batteries now – directly from the original 18650 battery manufacturer Golisi or from our specialist dealers. For dealer inquiries: Contact us.

Why choose 18650 batteries from Golisi?

With a rechargeable 18650 battery from Golisi, you can combine high performance with economical, long-lasting use. Our cells deliver realistic performance specifications, remain thermally stable, and are optimized for many applications—from lighting and photography/video to DIY/model making and mobile power.

Technical data of the 18650 batteries & differences

Size, voltage, and capacity

“18650” describes the format: Ø 18 mm × length 65 mm (cylindrical). Typical characteristics: Nominal voltage 3.6–3.7 V, end-of-charge voltage 4.2 V, end-of-discharge voltage ~2.5–2.8 V depending on application. Standard capacity range: 2,200–3,500 mAh – depending on chemistry and load capacity.

S30: 3000 mAh, high current up to 35 A peak
L35: Genuine 3500 mAh for maximum runtime
G30: Powerful all-rounder with 3000 mAh

Construction, safety, and quality (TÜV)

Golisi relies on robust cell construction, optimized temperature resistance, and thick, durable heat-shrink tubing—a plus for longevity, especially with daily use. Our TÜV-certified models (G25, G30, L35, S26, S30) have been tested in a multi-stage process for power output, capacity, drop resistance, and production quality.

Each battery is delivered with a transport box for safe transport and storage.

Lifespan, charging cycles, and maintenance

Depending on the model and usage, Golisi 18650 batteries can achieve many hundreds of charging cycles. Factors affecting service life include temperature, charging rate, depth of discharge, and storage conditions.

Practical tips: operate between 20–80% if possible, avoid high temperatures, use suitable chargers with CC/CV.
Storage: cool/dry, approx. 3.6–3.7 V storage voltage, always in the transport box.

Areas of application & 18650 battery recommendations

Flashlights, Photo/Video, DIY/Model Making, Mobile Energy

18650 cells are versatile: from outdoor and camping to lighting and video equipment to DIY battery packs and power banks (mobile energy). Choose according to your load profile:

High current & performance: S30, S26
Maximum runtime at low currents: L35, L30
Everyday use & value for money: G30, G25, G22

Which 18650 capacity is suitable for your device?

For devices with a constantly low load (sensors, small lights), you will usually benefit from maximum capacity (e.g., L35 with 3500 mAh). For medium loads, an all-rounder is a good choice (G30 with 3000 mAh). For high continuous loads, discharge currents and temperature stability are important (S26/S30). Always check the manufacturer's specifications for your device and compare them with the continuous/peak current of the cell.

18650 battery test & comparison

Golisi 18650 battery comparison (all models)

The key specifications at a glance – for quick selection by capacity, continuous/peak current, and TÜV certification:

Model	Capacity (mAh)	Continuous current (A)	Peak current (A)	TÜV	Recommendation / Use case
G22	2200	20	30	—	Affordable entry-level option, solid performance at low to medium loads
G25	2500	20	30	Yes	Long-lasting & economical with certified safety
G30	3000	20	25	Yes	Best value all-rounder for everyday use & lighting
L30	3000	10	–	—	Extended runtime at low currents (sensors, low/medium light)
L35	3500	10	–	Yes	Maximum range/runtime at low to mid loads
S26	2600	25	up to 35	Yes	High-current cell with compact capacity; stable performance
S30	3000	25	35	Yes	Performance pick: high continuous load + strong capacity

Compatible chargers for 18650 batteries:

Golisi Needle 18650 Charger – affordable single-slot charger with automatic shut-off – simple and safe, ideal for travel and occasional users
Golisi I4 18650 Charger – intelligent 4-slot charger with display, automatic shut-off, and smart charging chip – perfect for charging multiple batteries simultaneously
Golisi S6 18650 Charger – for frequent users – intelligent 6-slot charger with display, automatic shut-off, smart chip, and quick-charge (3×2A or 6×1A)
All Golisi chargers are compatible with 18650 batteries.

Tip: Create your own 18650 battery + charger bundle in the shop – perfectly matched and safely combined.

Frequently asked questions about 18650 Li-ion batteries

What does “18650” actually mean?

The numbers describe the format: 18 mm diameter × 65 mm length; the 0 indicates the cylindrical shape. It is therefore a standardized Li-ion cylindrical cell type used in many devices.

What is the difference between ICR, INR, and IMR?

These terms refer to the cell chemistry used:

ICR – high energy density, lower current capability
INR/IMR – higher discharge current and improved thermal stability

Depending on the model, Golisi uses optimized blended chemistries to ideally combine safety and performance.

Can I use any 18650 battery in any device?

Not always. Check the maximum allowable discharge current and the required capacity of your device.

High-current applications: S30, S26
Runtime-focused: L35, L30

How do I properly charge and store 18650 batteries?

Charger: Use an intelligent 18650 charger with CC/CV mode.
Charging temperature: Room temperature, avoid heat and frost.
Storage: Approx. 3.6–3.7 V at 15–20 °C, dry and secure in the transport box.

How can I identify reliable performance specifications?

Look for realistic capacity ratings, verified continuous/peak currents, and quality certifications such as TÜV. Golisi publishes only verified technical data.

What should I do if the heat-shrink wrap is damaged?

Please do not continue using the battery. Replace the heat-shrink wrap and perform a visual inspection. Replacement sleeves are available here:

Replacement heat-shrink sleeves for 18650 batteries

How do I dispose of defective or old 18650 batteries?

Dispose of defective or old batteries at official collection points – never in household waste. This protects the environment and conserves resources. Many Golisi retailers also accept used batteries.

Protected vs. unprotected 18650 batteries – which should I choose?

Protected: Integrated protection circuit against overcharge/deep discharge – ideal for devices without their own BMS.
Unprotected: More compact, lower internal resistance – for devices with their own protection logic.

For maximum safety during charging, always use a suitable charger.