{"product_id":"magellan-maestro-4700-replacement-battery-37v-1100mah-li-ion","title":"Magellan Maestro 4700 GPS Replacement Battery 3.7V 1100mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eMagellan Maestro 4700 — 3.7V Li-ion Replacement Battery (0392607k2)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 1100mAh Li-ion cell replaces the original battery in the Magellan Maestro 4700 and MA4700SGXUC portable GPS navigator. It matches the OEM dimensions at 50.40 × 36.60 × 5.57mm and slots into the existing battery bay without modification. Capacity figures come from the product data — 1100mAh \/ 4.07Wh.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMaestro 4700 and MA4700SGXUC fitment:\u003c\/strong\u003e\n    Both model variants run the same 3.7V battery bay with identical connector pinout and BMS communication line — one cell covers both units without adapters or wiring changes.\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 Maestro 4700 platform and confirmed the BMS accepted the cell without throwing a fault, held the correct cutoff voltage, and reported charge status accurately on-screen.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eCold-start after power interruption:\u003c\/strong\u003e\n    After fitting this cell, power the GPS on outdoors before driving. The unit performs a cold satellite acquisition after any full power removal — first fix can take 5–10 minutes. Subsequent warm starts drop that to under a minute once the almanac 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 Maestro 4700\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eAs the cell voltage drops toward its lower threshold, the Maestro 4700 scales back receiver sensitivity to protect remaining capacity. This shows up as position drift or slower route recalculation — not a map or signal issue. A degraded original battery that only holds partial charge will trigger this behaviour frequently. Fitting a fresh cell at full 3.7V nominal keeps the receiver running at full sensitivity throughout a journey.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMaestro 4700 shutting off without low-battery warning\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eA worn cell loses voltage sharply in its final 10–15% of capacity — the on-screen indicator still shows one bar, then the unit cuts off. The battery indicator is calibrated against a healthy cell's discharge curve; an aged battery collapses faster than the firmware expects. This replacement cell restores the correct discharge curve so the indicator has time to cycle through all warning stages. After fitting, allow a full charge before use so the firmware re-establishes its voltage-to-percentage mapping.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377671635034,"sku":"BWCS-MR4700SL-1","price":21.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377671667802,"sku":"BWCS-MR4700SL-2","price":24.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377671700570,"sku":"BWCS-MR4700SL-3","price":26.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-MR4700SL-1.webp?v=1778771802","url":"https:\/\/batteryweb.com\/products\/magellan-maestro-4700-replacement-battery-37v-1100mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}