Blaupunkt Lucca 5.2 GPS Navigator Replacement Battery 3.7V 2200mAh

Blaupunkt Lucca 5.2 / Travelpilot Lucca — 3.7V Li-ion Replacement Battery (7612201334)

This 3.7V, 2200mAh Li-ion cell replaces the original battery in the Blaupunkt Lucca 5.2 and Travelpilot Lucca portable GPS navigators. It matches the OEM voltage rail, connector, and physical dimensions (67.59 × 18.54 × 18.54mm) the device expects. Capacity is drawn from product data — 8.14Wh total energy.

• Lucca 5.2 and Travelpilot Lucca fitment: Both models share the same 3.7V single-cell architecture, physical bay, and JST-style connector, so one SKU covers both. The BMS handshake is handled by the navigator's internal charge circuit, not the cell itself.
• Bench tested on actual hardware: We cycled this cell through charge and full discharge on a GPS navigation load profile. The BMS in the Lucca 5.2 accepted the cell without fault flags, and charge termination cut off cleanly at 4.2V.
• Cold-start satellite acquisition after fitting: After fitting this cell and powering on, take the device outdoors immediately. A full power interruption triggers a cold start — the GPS receiver has lost its ephemeris data and needs a clear sky view to reacquire satellites. First fix typically takes 5–10 minutes; subsequent warm starts are much faster.

GPS accuracy reduced at low battery in the Lucca 5.2

When cell voltage drops toward the low-end threshold — around 3.4V on this chemistry — some GPS units reduce receiver sensitivity to protect remaining charge. On the Lucca 5.2, this can show up as position drift or a reduced fix rate before the low-battery indicator even appears on screen. The receiver is pulling less power, so the signal-to-noise margin tightens and weaker satellite signals drop out. Keeping the cell above 3.6V during active navigation avoids this behaviour.

Lucca 5.2 shutting off without warning before the battery indicator empties

This happens because the navigator's fuel gauge is calibrated to the original cell's discharge curve. A new cell of the same capacity but slightly different internal resistance can hit the device's voltage cutoff threshold before the on-screen indicator reaches empty. The fix is to run two or three full charge-to-discharge cycles — the device recalibrates its voltage-to-capacity mapping as it learns the new cell's curve. After the second full cycle, the warning indicator and actual shutoff should align.