Keeppower 18650 2900mAh (Black)



Official specifications:

• 18650 2900mAh Protected Rechargeable Battery
• Min Capacity: 2750mAh
• Typical Capacity: 2900mAh
• Normal Voltage: 3.6V
• Quality Lithium Ion rechargeable cell
• In Built Safety Circuitry
• Maximum capacity and reliability
• High Discharge Rate (Max 2C)
• Protection Circuit (Against overcharge, over discharge, over current and short-circuit.)
• 4.2 volts max voltage and 3.6-3.7 volts nominal voltage

The cell used can be discharged down to 2.5 volt, in my test I only discharges to 2.8 volt, i.e. I do not measure the full capacity. But then, not all lights will be able to use the full capacity.






















Conclusion

With a 2900mAh cell the battery is slightly below the highest capacity batteries on the market, but not much.
I will rate this battery as very good.