Navigon 1400 GPS Replacement Battery 3.7V 850mAh

Navigon 1400 / 1410 — 3.7V Li-ion Replacement Battery (LIN363002)

This 3.7V, 850mAh Li-ion cell replaces part number LIN363002 in the Navigon 1400 and 1410 portable GPS navigators. It restores the device's ability to run independently from vehicle power during active navigation. Dimensions are 52.00 × 34.00 × 4.70mm — measure your original cell before fitting if you are unsure.

• 1400 and 1410 compatibility: Both models share the same battery bay dimensions, connector pinout, and 3.7V supply rail. One cell covers both units with no modification.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on a 1400 unit. The BMS accepted the charge curve without error flags and held the voltage rail stable through satellite acquisition and active routing.
• Cold-start power-on tip: After fitting this cell, take the device outdoors and power it on before your first drive. A full cold-start satellite fix after a complete power interruption can take 5–10 minutes. Doing this once at home avoids a long lock delay mid-journey.

GPS accuracy reduced at low battery on the 1400

The Navigon 1400's GPS receiver draws consistent power during satellite tracking. When cell voltage drops toward the lower end of its discharge curve, the unit can reduce receiver sensitivity to protect remaining charge. This shows up as position drift or slower route recalculation — not a software glitch. Keeping the cell above 3.5V during active navigation prevents this behaviour.

Device shuts off without warning before the battery indicator hits empty

The 1400 reads cell voltage and maps it to the on-screen battery indicator. A freshly fitted cell has a slightly different discharge curve than the original, so the indicator's calibration is off at first. The unit can reach its low-voltage cutoff — typically around 3.0V — before the visual indicator reaches one bar. Run two or three full charge-to-cutoff cycles and the indicator will track more accurately.