2 pack AA Rechargeable Ni Cad Batteries. They will recharge inside your scanner.
Compatable witht the following models.
BC72xlt
BC95xlt
SC230
BC246
BR330
BCD396t
BCD396xt
BC346x
Item Number: BP-2300 Ni-Cad Batteries
Manufacturer: UNIDEN
Manufacturer Part No: BP-2300 Ni-Cad Batteries