Characteristics: Entrance: AC110-245V 50 / 60HZ 0.8A Charging voltage: DC16.8V Charging current: 2A Charge mode: CC-CV Charge indicator: red indicator = charging, green indicator = fully charged Charger port: DC5.5 x 2.5mm Safety protection: Over Voltage output Protection. Over Current output Protection. Short Circuit output Protection Application: Lithium batteries (lithium-ion batteries, lithium polymer batteries) The nominal voltage of the battery pack is 14.4V to 16.8V Length of the line: about 90 cm The package includes: 1x lithium battery charger Protection functions: 1. Input overcurrent protection When the input current is greater than 2A, the charger will turn off the fuse to prevent internal circuit faults that could cause fires and other hazards. 2. Output current protection The Li-ion battery charger for charging current is limited to a range that preserves the safety and battery life. 3. Short circuit protection When the charger is not used properly, the charger output current will be 200 mA or less to prevent damage.