Molicel P30B 18650, 30 Amp, 3000mAh, Flat/Button Top

If your torch is for mounting on a gun, a button top must be used. This is to prevent the positive terminal being dented in by the spring.
 
Price is per battery
 
Specs:

- Model: P30B
- Manufacturer: Molicel
- Typical capacity: 3000mAh
- Minimum capacity: 2900 mAh
- Nominal voltage: 3.6V
- Charging voltage: 4.20V
- Discharging end voltage: 2.5V
- Standard charging current: 3A
- Maximum charging current: 9A
- Continuous discharging current: 30A
- Size: 18.6mm x 65.2mm (+1.5 - 2.0mm Button Top)
- Weight: 47g
- Origin: Canada or Taiwan
 
Buyers must be aware of lithium safety before purchase. Please read my thorough battery safety guide - here