Keeppower P1665J 2500mAh Protected Li-ion Rechargeable Battery

This cell can generally be used to replace 2xCR123A in flashlights, but as it is lower voltage a boost driver is advisable.

Please Note: The internal cell is capable of being charged to 4.35V, but the protection circuit is set to 4.20V, we did not notice a huge capacity difference with this.

Specifications:
Nominal Capacity: 2500 mAh
Nominal Voltage: 3.7V
Charging Voltage: 4.20V
Discharge End Voltage: 2.5V
Max. Continuous Discharging Current: 2C

Dimensions:
67.90mm (L) x 16.39 mm (D) (+/-0.2mm)

Protection Circuit (Over charge, over discharge, over current, and short-circuit)

Warnings: 
-Do not overdischarge/overcharge
-Recharge drained batteries ASAP
-Do not short circuit
-Do not dispose of in fire
-Do not expose to extreme heat or water
-Please be familiar with handling lithium-ion batteries before purchase.