BTBAI Battery Charger BN-VG121 AC/DC Wall/Car Single for BNVG121 BN-VG107 BN-VG107AC BN-VG107E BN-VG107U BN-VG108E VG108U BN-VG114 BN-VG114E BN-VG114U BN-VG121E BN-VG121U BN-VG138 VG138E VG138U k1a