Topcon BT-4 2500mAh Ni-MH Rechargeable Battery for GPS Receiver

Replacement rechargeable battery pack: 2500mAh Ni-MH BT-4 designed specifically for Topcon GPS Receiver. This Nickel-Metal Hydride battery restores device runtime and is a direct-fit swap for worn or depleted BT-4 packs. Ideal for maintaining field operation of compatible Topcon GPS Receiver units — charge with a suitable, compatible charger and follow local disposal and recycling guidelines.