[N.B: The product is tested and QC passed, thus no warranty or exchange is allowed for this item.]
This charger is compact and light, which can charge 2s or 3s battery pack, especially there is separated corresponding balance port for each battery pack. Before using it, please read the user manual carefully. Instructions for Charging Operation: 1. Please firstly connect the B3 Pro charger to power, while the three power LEDs will turn from red to green, which indicating that the charger works in good order. 2. (Set 3s battery pack for example) Secondly, please connect the battery pack to 3s balance port, while the three power LEDs will all turn into red and charge begin. Please note once the charging of one cell is done, the corresponding power LED for it will turn green. 3. When the three power LEDs all turn green, the charging for 3S battery pack is finished.