Technique: Charging Voltage: 4.2V CC/CV Maximal continuous charging current: 3A (Current can be changed according to the demand. ) Over charge protection: Over charge detection voltage: 4.28V ± 0.025V; 0.025V; 0.025V Over charge release voltage: 4.08 ± 0.025V; 0.025V; 0.025V Over discharge protection: Over discharge detection voltage: 3.0V ± 0.05Vn; 0.05Vn; 0.05V Over discharge release voltage: 3.0V ± 0.05Vn; 0.05Vn; 0.05V Over Current protection Short Protection: Exterior Short Circuit and can be automatic recovery Applications: 1. Memory backup: CMOS memory, RTC(real time clock) and computer backup. 2. AMR utility meters: Electricity meter, gas meter and water meter etc. 3. Wireless alarm sensors: Smoke alarm systems, temperature monitors etc. 4. Remote monitor systems: GPS, sea buoys, lifejacket lights, lifecraft lights, cargo-locating systems etc. 5. Automotive and electronics: Automotive security systems, tire-pressure monitoring systems etc. 6. Electronics toll tags: Toll gates 7. Military electronics: Radio communication, night vision equipment, tracking and positioning systems etc.