General description Simple operation with a voltage display function, this BC-4S15D Battery Lipo Li-Ion Balance Charger allows for easy monitoring of the charging process without the need for an external adapter. It features ultra-high charging accuracy with an error margin of ±10mV and multiple protection functions to ensure the safety of both batteries and users. Additionally, it includes an old battery automatic repair function and a newly designed balance architecture that saves energy by eliminating the need to discharge batteries before charging. Technical specifications Voltage: AC100-240V Plug Type: EU Plug (suitable for Indonesia, Germany, France, Spain, Italy, etc.) Color: Blue Material: Metal Charging accuracy: ±10mV Allowed measurement error: +/- 1-3cm Compatibility and accessories Compatible with Li-ion and Li-polymer batteries only Package includes: 1 x Balance Charger, 1 x Cable, 1 x Adapter Installation Before charging, ensure the adapter power is sufficient (≥30W) and