BT12                    2 Cell Battery Pack Stick

BT12SS               2 Cell Battery Pack Side by Side

BT14                    3 Cell Battery Pack Stick

BT14SS               3 Cell Battery Pack Side by Side

BT16                    4 Cell Battery Pack Stick

BT16SS               4 Cell Battery Pack Side by Side

BT18                    5 Cell Battery Pack Stick

BT20                   6 Cell Battery Pack Stick