PCB board and high quality.
No "memory" effect, and long working time.
Over current protection, high temperature protection, over charge and discharge protection.
Great batteries for your flashlight or other devices.
Type: AAA Rechargeable lithium battery
Rechargeable times: Up to 500 times
Charge time: 2-3hrs
Size: 4.6 4 1cm / 1.8 1.6 0.4in
Weight: 32g / 1.2oz
4 * Rechargeable Battery