{"product_id":"magellan-roadmate-1200-3-wires-replacement-battery-37v-1100mah-li-ion","title":"Magellan RoadMate 1200 Replacement Battery 3.7V 1100mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eMagellan RoadMate 1200 \/ 1210 Series — 3.7V Li-ion Replacement Battery (384.00015.005)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V 1100mAh (4.07Wh) lithium-ion cell replaces the original battery in the Magellan RoadMate 1200 and RoadMate 1210 portable GPS navigators — specifically the 3-wire connector variants. It matches the OEM part number 384.00015.005 and fits the 53.934 × 34.27 × 5.70mm battery cavity.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eRoadMate 1200 and 1210 (3-wire) compatibility:\u003c\/strong\u003e\n    Both models use the same 3-wire connector and BMS handshake — the third wire carries thermistor data to the charge controller. This cell includes that thermistor line. A 2-wire cell will not charge correctly in these units.\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 a RoadMate 1200 chassis. The BMS accepted the handshake without fault codes, and the charge controller reached full termination voltage at 4.2V as expected.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst satellite fix after fitting:\u003c\/strong\u003e\n    After any full power interruption, the RoadMate 1200 performs a cold start. Power the unit on outdoors and leave it stationary — first satellite acquisition takes 5 to 10 minutes. Subsequent warm starts run under a minute once ephemeris data is cached.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eGPS accuracy reduced at low battery on the RoadMate 1200\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eWhen the RoadMate 1200 battery drops below roughly 3.5V, the unit begins reducing GPS receiver sensitivity to conserve power. This shows up as position drift or longer re-acquisition times — the GPS signal icon may still appear, but fix accuracy degrades. It is not a hardware fault. Keeping the cell above 3.6V during active navigation prevents the unit from entering this reduced-sensitivity mode.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eRoadMate 1200 shuts off without a low-battery warning\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eAfter a battery swap, the fuel gauge IC inside the RoadMate 1200 loses its calibration data — it no longer knows the cell's true state of charge. The unit tracks voltage instead, and if the on-screen indicator is out of step with actual voltage, the device hits the hardware cutoff threshold before any warning appears. Run two full charge-discharge cycles after fitting this cell. That re-exposes the fuel gauge to the real voltage curve and restores accurate low-battery warnings.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377741332570,"sku":"BWCS-MR1200SL-1","price":21.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377741365338,"sku":"BWCS-MR1200SL-2","price":24.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377741398106,"sku":"BWCS-MR1200SL-3","price":26.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MR1200SL-1.webp?v=1778771923","url":"https:\/\/batteryweb.com\/products\/magellan-roadmate-1200-3-wires-replacement-battery-37v-1100mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}