Bushnell Yardage Pro H604261H Replacement Battery 3.7V 2000mAh

Bushnell Yardage Pro — 3.7V Li-Polymer Replacement Battery (H604261H)

This 3.7V, 2000mAh Li-Polymer cell replaces the original H604261H battery in the Bushnell Yardage Pro GPS rangefinder. It fits the Yardage Pro, 36-8100, BUU0057, and E35010M28 models. Capacity is 7.4Wh — matched to the original spec.

• Yardage Pro platform fit: These models share the same battery bay dimensions, connector orientation, and 3.7V power rail. The BMS on each accepts this cell without a handshake conflict or charging-mode error.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on the Yardage Pro platform. The BMS accepted the cell on first connection, reached full charge without tripping an error state, and held voltage within the expected range at load.
• Cold-start satellite acquisition: After fitting this cell, power the unit on outdoors before your round and allow it to acquire a satellite fix. The GPS performs a cold start after any full power interruption — first fix typically takes 5–10 minutes, while subsequent warm starts resolve in under a minute.

GPS accuracy reduced at low battery on the Yardage Pro

As cell voltage drops toward the lower end of the 3.7V nominal range, some GPS units reduce RF receiver sensitivity to limit current draw. On the Yardage Pro, this can show up as increased distance jitter or sluggish position updates during a round. The fix is straightforward: keep the cell above its low-voltage threshold by topping up before play. A full charge brings the cell to approximately 4.2V — that headroom keeps the receiver running at full sensitivity throughout a standard round.

Yardage Pro shutting off without a low-battery warning

When the original cell ages, its voltage curve flattens and then drops sharply at the end of discharge. The Yardage Pro's battery indicator reads the voltage curve — a degraded cell can show two bars and cut off seconds later because the gauge was calibrated to a fresh cell. A replacement cell restores the original discharge curve, so the indicator tracks accurately again. After fitting this battery, run one full charge cycle to let the gauge recalibrate to 4.2V at full charge.