Route 66 Bluetooth GPS Replacement Battery HXE-W01 3.7V 1000mAh

Route 66 Bluetooth GPS — 3.7V Li-ion Replacement Battery (HXE-W01)

This 3.7V 1000mAh Li-ion cell replaces the original battery in the Route 66 Bluetooth GPS navigator (HXE-W01). It fits the portable standalone unit used for vehicle and personal navigation. Dimensions are 52.96 × 33.64 × 5.15mm — confirm these against your existing cell before fitting.

• Route 66 Bluetooth GPS fit: The HXE-W01 part number covers the Route 66 Bluetooth GPS series. These units run a single 3.7V Li-ion cell with a BMS that monitors cell voltage and temperature before allowing the display and GPS receiver to draw current together.
• Bench tested on actual hardware: We ran this cell through charge and discharge cycles on GPS-class hardware. The BMS accepted a full charge without tripping, and the protection circuit responded correctly at low-voltage cutoff without locking the cell.
• Cold-start satellite acquisition after swap: After fitting this cell, power the unit on outdoors and let it acquire a satellite fix before driving. A full power interruption clears the GPS receiver's warm-start cache, so first fix after a battery swap can take 5–10 minutes rather than the usual sub-minute warm start.

GPS accuracy reduced at low battery on the Route 66 Bluetooth unit

When cell voltage drops toward the lower end of the 3.7V Li-ion discharge curve, some GPS receivers reduce radio-frequency sensitivity to conserve power. On the Route 66 Bluetooth GPS, this can show up as position drift or a weaker satellite lock before the low-battery icon appears. The display and Bluetooth radio draw current from the same cell, compressing the window between "low battery" warning and actual cutoff. Keeping the cell above 3.6V during active navigation holds the receiver at full sensitivity.

Route 66 Bluetooth GPS shuts off without warning before the battery indicator reaches empty

The battery level indicator on this unit is calibrated to the original cell's discharge curve. A degraded or replacement cell with a slightly different discharge profile can hit the BMS low-voltage cutoff threshold before the on-screen indicator reaches the last bar. The device powers off abruptly — not a software freeze. Run one full charge-to-cutoff cycle after fitting the new cell so the firmware can re-map the indicator against the actual discharge curve. After that cycle, the warning and cutoff should realign.