About this replacement
Navigon 2200 / 2210 / 2200T — 3.7V Li-ion Replacement Battery (384.00021.005)
This 3.7V, 800mAh Li-ion cell replaces OEM part 384.00021.005 in the Navigon 2200, 2210, and 2200T portable GPS navigators. It fits the same connector and physical footprint as the original. Capacity is 800mAh (2.96Wh), matching the stock specification.
- 2200, 2210, and 2200T compatibility: All three models share the same battery bay dimensions, connector pinout, and 3.7V charging profile. One cell covers the entire platform without modification.
- Bench tested on actual hardware: We cycled this cell through charge and discharge on the 2200 platform. The device's protection circuit accepted the cell without fault flags, and the charge controller reached cutoff correctly at full capacity.
- First satellite fix after fitting: After any full power interruption, the Navigon 2200 performs a cold start. Power the unit on outdoors and give it 5–10 minutes to reacquire its satellite almanac. Subsequent warm starts resolve in under a minute once the almanac is cached.
GPS accuracy reduced when battery charge drops below 20%
The Navigon 2200 scales back receiver sensitivity at low battery to protect against an uncontrolled shutdown. This reduces the number of satellites the unit can track simultaneously. Position accuracy degrades noticeably — the on-screen arrow may lag actual position by 10–15 metres. Keeping the battery above 20% charge during active navigation prevents the receiver from entering this reduced-power mode.
Device shuts off without a low-battery warning
The battery indicator in the Navigon 2200 reads voltage, not actual state of charge. As a Li-ion cell ages, its voltage curve flattens — the indicator stays at one or two bars until voltage drops sharply, then the unit cuts off instantly. A new cell restores a steeper voltage curve, which gives the indicator enough resolution to trigger the warning at the correct threshold. After fitting this replacement, run one full charge cycle so the device can re-calibrate its voltage-to-charge mapping against a fresh cell's curve — charge to 4.2V and allow the device to discharge normally before recharging.