{"product_id":"medion-md-95780-replacement-battery-37v-1200mah-li-ion","title":"Medion MD-95780 GPS Navigator Replacement Battery 3.7V 1200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eMedion MD-95780 — 3.7V Li-ion Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V 1200mAh Li-ion cell replaces the original battery in the Medion MD-95780 portable GPS navigator. It fits directly into the device's battery bay and restores power to the navigation unit. Capacity matches the original at 1200mAh (4.44Wh).\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMD-95780 fit:\u003c\/strong\u003e\n    The MD-95780 uses a single-cell 3.7V Li-ion pack at this compact form factor — 50.04 × 36.39 × 6.33mm. The replacement shares that footprint and voltage rail, so the onboard protection circuit reads the cell correctly without triggering a fault state.\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 bench. The BMS accepted the cell without a voltage rejection error, and the protection circuit engaged at the correct cutoff threshold on discharge.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eCold-start satellite acquisition after swap:\u003c\/strong\u003e\n    After fitting this cell, power the GPS fully on outdoors before driving. A full power interruption clears the receiver's ephemeris cache, triggering a cold start — first satellite fix after a swap takes 5–10 minutes. Subsequent power cycles fix in under a minute once the cache rebuilds.\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 as battery drops below 3.5V\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eSome GPS units step down receiver sensitivity when the cell voltage falls below a set threshold — typically around 3.5V on a 3.7V nominal cell. The unit stays on and displays a route, but satellite signal strength drops noticeably and position accuracy degrades. This is a firmware-level power-saving response, not a hardware fault. Keeping the battery charged above 3.6V during active navigation prevents the sensitivity reduction from triggering.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eMD-95780 shuts off without warning before the low-battery icon appears\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe battery indicator on the MD-95780 reads estimated charge based on voltage, and a degraded original cell can cause the calibration to drift — the device shows two bars and then cuts off immediately. A fresh cell resets the voltage curve the indicator reads from. After fitting the new battery, run one full charge cycle to let the device re-anchor its low-voltage cutoff reference. If the unit shuts off unexpectedly, check that charge voltage reached 4.2V before first use.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377675305050,"sku":"BWCS-NAV5100SL-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377675337818,"sku":"BWCS-NAV5100SL-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377675370586,"sku":"BWCS-NAV5100SL-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-NAV5100SL-1.webp?v=1778771818","url":"https:\/\/batteryweb.com\/products\/medion-md-95780-replacement-battery-37v-1200mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}