{"product_id":"navigon-2100-max-replacement-battery-37v-1200mah-li-polymer","title":"Navigon 2100 Max GPS Replacement Battery 3.7V 1200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eNavigon 2100 Max \/ 2120 Max Series — 3.7V Li-Polymer Replacement Battery (03028)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 1200mAh lithium-polymer cell replaces the original battery in the Navigon 2100 Max, 2120, 2120 Max, and 2110 Max portable GPS navigators. It matches the original cell's dimensions (59.12 × 36.05 × 4.66mm) and voltage rail, so the device powers on without modification. Capacity figures are taken directly from the product data — 1200mAh \/ 4.44Wh.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e2100 Max and 2120 series fit:\u003c\/strong\u003e\n    These models share the same battery bay geometry, 3.7V supply rail, and OEM part number 03028. The connector orientation and BMS handshake are identical across the series, so one cell covers all listed variants.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge and discharge on the 2100 Max platform. The BMS reached full charge cutoff cleanly, and low-voltage protection triggered at the expected threshold with no spurious shutdowns during the test cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst satellite fix after fitting:\u003c\/strong\u003e\n    After a full power interruption from a battery swap, the Navigon 2100 Max performs a cold start. Power the unit on outdoors and allow it to acquire a satellite fix before driving — cold start acquisition typically takes 5–10 minutes versus under a minute for a subsequent warm start.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eGPS accuracy dropping at low battery on the 2100 Max\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the 2100 Max cell voltage drops toward its lower threshold, some units reduce GPS receiver sensitivity to conserve power. This shows up as positional drift or a weaker satellite signal bar count — not a hardware fault in the receiver itself. The fix is straightforward: keep the cell above 50% state of charge during active navigation. A depleted or heavily degraded original battery accelerates this behaviour, which disappears once a fresh cell holds voltage under normal draw.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eDevice shuts off without warning before the battery indicator hits zero\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe 2100 Max battery indicator is calibrated to the original cell's discharge curve. After a battery swap — especially if the new cell has a slightly different internal resistance — the fuel gauge loses its reference point and the displayed percentage no longer matches real state of charge. The unit hits the BMS low-voltage cutoff while the indicator still reads 15–20%. Run two full charge-to-cutoff cycles after fitting the new cell; the device re-calibrates its gauge against the actual discharge curve and the shutoff warning returns to the correct point.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377684414554,"sku":"BWCS-NAV2100SL-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377684447322,"sku":"BWCS-NAV2100SL-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377684480090,"sku":"BWCS-NAV2100SL-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-NAV2100SL-1.webp?v=1778771880","url":"https:\/\/batteryweb.com\/products\/navigon-2100-max-replacement-battery-37v-1200mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}