Nitecore NL18650R 18650 Li-Ion Rechargeable Battery (2600mAh)

The 2600mAh USB rechargeable battery is a definite step forward in cost-effectiveness and portability. With this highly effective battery, now all you have to do is insert a micro USB cable directly into the battery. The battery exhibits true flexibility in the ability to be charged in two different ways via micro-USB charging and battery charger. It also sports a red power indicator that indicates that it's still charging and a green indicator that tells you it's fully charged. Included in its design are safety features such as pressure relief valve protection that activates int eg event of a rapid temperature increase. Moreover, you can expect integrated smart charging circuitry in the anode that protects the battery against overcharging, over discharge and short-circuit. This battery can be recharged over 500 times, the equivalent of 500 pairs of CR123 batteries, meaning that not only is this the most efficient battery on the market but the most environmentally friendly.