{"product_id":"garmin-010-00543-00-replacement-battery-74v-2200mah-li-ion","title":"Garmin 010-00543-00 GPS Compatible Battery 7.4V 2200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eGarmin 010-00543-00 Series — 7.4V Li-ion Replacement Battery (010-10517-00)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.4V, 2200mAh Li-ion battery for Garmin GPS navigators in the 010-00543-00 family, including EGM478 and related models. It replaces OEM part numbers 010-10517-00, 010-10517-01, 011-00955-00, and 011-00955-02. Fit the cell, power on the unit, and the device picks up where the original battery left off.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e010-00543-00 family compatibility:\u003c\/strong\u003e\n    These models share the same 7.4V two-cell architecture, identical connector pinout, and the same BMS handshake protocol — which is why one cell covers the full variant range including 100054300 and 3580100054300 derivatives.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through full charge-discharge on a 010-00543-00 unit. The BMS accepted the cell immediately, reported correct voltage to the fuel gauge, and held a stable charge curve throughout the discharge cycle with no unexpected cutoffs.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eCold-start satellite acquisition after fitting:\u003c\/strong\u003e\n    After any full power interruption — including a battery swap — the GPS performs a cold start. Take the device outdoors and power it on before your first use. First satellite fix takes 5–10 minutes; subsequent warm starts resolve in under a minute once the almanac is rebuilt.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eGPS battery draining faster during active navigation than standby\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eActive navigation draws on two power-hungry systems simultaneously: the GPS receiver chip scanning and tracking satellites, and the backlit display running at full brightness. In standby or track-logging mode with the screen off, current draw drops significantly. If drain feels unusually fast in navigation mode, reduce display brightness — it is the single largest controllable load on the 2200mAh cell. The GPS receiver itself consumes a fixed draw that cannot be reduced without disabling satellite functions.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eDevice shuts off without warning before the battery indicator hits empty\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe on-screen battery indicator is calibrated against the original cell's discharge curve. A new cell with a slightly different voltage slope can hit the device's low-voltage cutoff threshold before the indicator registers as empty. This is a fuel gauge calibration lag, not a fault with the cell. Run two or three full charge-discharge cycles through active navigation use — the device's charge algorithm will re-map the cutoff point against the new cell's actual curve and the warning will realign to the correct charge level.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377736384602,"sku":"BWCS-GM276-1","price":35.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377736417370,"sku":"BWCS-GM276-2","price":41.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377736450138,"sku":"BWCS-GM276-3","price":45.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-GM276-1.webp?v=1778771839","url":"https:\/\/batteryweb.com\/products\/garmin-010-00543-00-replacement-battery-74v-2200mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}