1. Using the special IC for LI-ION charger to control the charging.
2. Double colors LED indicating the charging and full charge state.
3. Charge with constant current first & charge with constant voltage later.
4. The current is 500/1000mA when charging with constant current.
5. The voltage is 8.4V±0.1V when the battery is fully charged.
6. External AC/DC adapter
7. Fit for BP-232 battery.