The Klarus 18650 battery holds 3400 mAh of capacity at a nominal 3.7 V, giving a single cell enough stored energy for long sessions in 18650-powered torches and headlamps. It uses a button-top positive contact, so it drops straight into devices with a recessed or spring-loaded terminal that flat-top cells cannot reach.
The cell is protected, adding a safety circuit against overcharge and over-discharge, which makes it a sensible everyday spare for gear that runs hard. It is a standard 18650 size, so it fits any compatible 18650 compartment. Charging is done in a matching external 18650 charger, not through a built-in port, so keep a dedicated charger on hand.
Key features
- 3400 mAh capacity for longer run time between charges
- 3.7 V nominal voltage, standard 18650 lithium-ion chemistry
- Protected circuit against overcharge and over-discharge
- Button-top positive terminal for devices with recessed contacts
- Standard 18650 size to fit compatible torch and headlamp compartments
- Rechargeable in a matching external charger
- Sold as one battery per pack
Where it helps
- Power cuts, when a spare cell keeps a handheld light running
- Security patrols and night guard shifts
- Camping and outdoor trips where a spare battery backs up a headlamp
- Night travel and roadside checks with a torch
- Household jobs around the compound after dark
Specifications
| Feature |
Details |
| Brand |
Klarus |
| Battery Size |
18650 |
| Battery Chemistry |
Li-ion |
| Capacity |
3400 mAh |
| Voltage |
3.7 V |
| Top Type |
Button-top |
| Protection Type |
Protected |
| Rechargeable |
Yes |
| Charging Port |
External charger |
| Package Contents |
Battery only |
| Quantity Included |
1 |
This cell suits anyone who owns an 18650-compatible flashlight, headlamp or similar device and wants a protected, button-top spare with solid capacity. Check that your device takes a button-top 18650 before you buy.
