1. CPU controlling the process of charging and discharging.
2. Ni-CD & Ni-MH battery packs are available.
3. Double colors LED indicating the charging and full charge state.
4. Multiple protection of temperature, short-circuit and over-charging.
5. The current is 500/1000mA when charging with constant current.
6. External AC/DC adapter.
7. Fit for BP-264 battery.