Golisi G25 18650 2500mAh Battery

2500mAh capacity, 20A continuous discharge, and over 800 charge cycles from a single 18650 cell. The Golisi G25 is a rechargeable IMR battery built for Vape Mods and regulated devices that run on external 18650 cells.

3.7V nominal voltage, 30mΩ internal resistance, and TÜV Rheinland certification. Golisi includes a battery transport box in every pack. Over 18s only.

Why vapers choose the Golisi G25:

• 20A continuous discharge handles most regulated mods comfortably, including dual-battery setups where each cell shares the load

• TÜV Rheinland certified: genuine third-party laboratory testing, not a manufacturer self-declaration

• 800+ charge cycles translate to well over two years of daily use for most vapers

• Extra-thick casing reduces wrap tears and short-circuit risk during everyday handling

• Transport box included so you are not carrying a loose cell next to coins and keys

Golisi G25 18650 Battery Features

TÜV Rheinland Is Not Just a Badge

The G25 holds TÜV Rheinland certification alongside UN38.3 transport and IEC62133 safety standards. Those involve independent laboratory testing under controlled conditions and regular production monitoring. Practically speaking? The specs on the wrapper match what the cell actually delivers.

Why 20A Matters for Vape Mods

Most regulated Box Mods draw between 10A and 20A under normal use. The G25 stays within its safe operating window at those loads without excessive heat buildup. Not a competition cell for mechanical setups, but for regulated devices it does exactly what you need.

800 Cycles Changes the Running Cost

A cell that lasts 800+ charge cycles is not one you replace every few months. Rotate two or three G25s, and you are looking at over two years before noticeable capacity loss. The maths works out considerably better than cheap cells that fade after a couple of hundred cycles.

That Extra-Thick Casing

Battery wraps tear. Golisi engineered a thicker outer casing that resists nicks and general wear. A compromised wrap on an 18650 is a genuine safety risk, so extra protection at the manufacturing stage matters. Still worth inspecting regularly, obviously.

How to Set Up the Golisi G25 18650 Battery

1. Inspect the wrap before first use. Check for tears or exposed metal around the positive terminal.

2. Charge fully using a dedicated Battery Charger that supports 18650 Li-ion cells. Do not exceed 2A charge current.

3. Insert into your mod with the correct polarity. Positive terminal faces the direction marked in the battery compartment.

4. Allow the cell to rest for a couple of minutes after charging before use. Gives the internal chemistry a moment to stabilise.

5. Start at moderate wattage and increase gradually. The G25 handles up to 74W at full charge, but staying below 60W keeps everything well within limits.

What's in the Golisi G25 18650 Battery Box

One 2500mAh 18650 battery and one battery transport box. No charger, no mod, no e-liquid. You will need a compatible charger if you do not already own one.

A Reliable 18650 for Regulated Vape Mods

The G25 fits any Regulated Mod with an 18650 bay. Vaporesso, Geekvape, Voopoo, SMOK, Innokin: all compatible. Not suitable for mechanical mods or unregulated setups. The G25 is a workhorse cell, but it is not rated for the extreme loads mechanical builds can produce.

About Golisi

Golisi is a German-registered battery manufacturer (Golimax GmbH) that specialises in rechargeable lithium-ion cells and smart chargers. The brand has built its identity around independently certified products, with TÜV Rheinland and Hermes HanseControl testing across the range.

The G25 is one of the few vape-market 18650s that carries genuine third-party safety certification rather than self-declared ratings.

Stock Up and Save

One cell is a start. Two is a rotation. Three means you always have a charged battery ready.

Every order from Pirate Vapes ships the same day before 4 pm in padded packaging. Age-verified checkout, over-18s only. Spend over £25 and delivery is free with Free Pirate Post.

Conclusion

The Golisi G25 is a certified, dependable 18650 for regulated mod users. 2500mAh, 20A continuous, 800+ charge cycles, and TÜV Rheinland testing.

No guesswork, no mystery specs. Browse more vape batteries and Vape Accessories at Pirate Vapes.

FAQs

What devices does the G25 fit?

Any regulated mod with an 18650 battery bay. Vaporesso, Geekvape, Voopoo, SMOK, and Innokin devices all work. Not for mechanical mods.

How long does a full charge last?

Depends on wattage. At 40 to 50W, most vapers get a full day. At 70W on a single cell, closer to half a day.

Can I charge the G25 inside my mod?

A dedicated external charger is better for the cell's long-term health. Charge at 2A or below.

Is the G25 safe for sub-ohm vaping?

On a regulated mod, yes. The chipset manages current draw. The 20A continuous rating covers the vast majority of regulated sub-ohm setups.

How many recharge cycles before the G25 wears out?

Golisi rates the G25 at 800+ cycles. With a two-cell rotation, that is over two years of daily use.