Cameron Sino Battery for RAND McNally OD7, OD8, PRO II 2, TND-T85 OP806363 4000mAh 3.7V

Direct replacement for RAND McNally GPS units

This Cameron Sino battery fits the OD7, OD8, PRO II 2 and TND-T85 models using part number OP806363. It supplies 3.7 volts and 4000 milliampere-hours in a nickel-zinc chemistry. The pack measures 65.00 by 61.50 by 7.80 millimetres and weighs 66.0 grams. Buyers needing a different voltage or form factor cannot use this pack.

Steady output during long navigation sessions

The cell delivers its rated 14.80 watt-hours consistently rather than only in short bursts, supporting extended route guidance without voltage sag. Built-in protection guards against overcharge, over-discharge, over-voltage and short circuits. A decoded chip communicates with the device exactly as the original battery does. Users who require hot-swap capability or higher continuous current will find this pack unsuitable.

Limited to devices designed for 3.7 V nickel-zinc

The interface is a simple two-wire connector matched to the listed RAND McNally units, so no other GPS brand or model can accept it. Capacity drops off outside the normal operating temperature range of the chemistry. The 12-month manufacturer warranty covers defects but not wear from repeated deep cycles. Anyone needing a user-replaceable standard cell format such as AA must choose a different product.