B3AC Compact Charger is a simple and compact LiPoly balance charger for 2~3s batteries. It features built-in JST-XH balance plug ports and 3 LEDs to indicate charge status. B3AC makes an ideal pocket-sized charger to keep in your field box. Package Includes: 1 x IMAX B3 AC Compact Balance Charger for 2S-3S LiPo, Connect the battery properly, Loose wire or short battery can damage the charger, Put the 2 ping plug properly in socket