EagleTac-Protected-Liion-14500-Rechargeable-Battery-1X14500

This battery has nearly the same size as a AA battery (It is slightly longer), but can only be used in equipment designed for LiIon batteries, due to the much higher voltage.

Specifications:
750mAh IC PROTECTED Rechargeable Cell (4.2V hot off charger)
Measures only 51.1mm in height (+/-0.1mm) and 14.4mm in width IC protected for a) over-charge, b) over-discharge, c) short circuit, d) current overflow of 3A+
True protrude top design, fits all flashlights
High discharge rate 3A+
Nominal voltage: 3.7V, charge up to 4.2V, use CC/CV charger to charge Reinforced steel plate bottom, highly efficient protective PCB design