{"product_id":"garmin-edge-800-replacement-battery-37v-1000mah-li-ion","title":"Garmin Edge 800 Replacement Battery 3.7V 1000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eGarmin Edge 800 \/ Edge 810 — 3.7V Li-ion Replacement Battery (KE37BE49D0DX3)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 1000mAh Li-ion cell replaces the original battery in the Garmin Edge 800 and Edge 810 cycling computers. It matches the OEM part number KE37BE49D0DX3 and fits the same 51.00 × 34.00 × 5.00mm cavity. Capacity is rated at 3.7Wh — identical to the factory specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eEdge 800 and Edge 810 compatibility:\u003c\/strong\u003e\n    Both models share the same battery bay dimensions, connector pinout, and charge circuit. One cell covers either unit without modification.\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 Edge 800 platform. The onboard charge circuit accepted the cell cleanly — no fault codes, no cutoff on initial charge.\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 unit fully on outdoors before your first ride. With no prior GPS lock data in memory, the receiver runs a full cold start that typically takes 5–10 minutes. Subsequent locks from the same area drop to under a minute once almanac 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\"\u003eWhy the Edge 800 shuts off without warning at low battery\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Edge 800 reads the battery fuel gauge from a voltage curve stored at the factory. When the original cell ages, that curve drifts — the device shows 20% charge and then cuts off seconds later. A new cell resets the actual voltage range, but the gauge calibration takes one or two full discharge cycles to re-anchor. Expect the indicator to read slightly off for the first two rides. After two complete charge-to-cutoff cycles, the displayed percentage will track the true cell state accurately.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSaved routes missing after battery replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Edge 800 stores course and route data in flash memory, which is non-volatile and survives a full power loss. However, active ride data and some real-time navigation state sit in RAM and are cleared the moment the battery drops out. If a course was in progress during removal, that in-progress session will not recover. Completed courses saved before the swap will still appear under the Courses menu — check there before re-importing from Garmin Connect.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377632804954,"sku":"BWCS-GME800SL-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377632837722,"sku":"BWCS-GME800SL-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377632870490,"sku":"BWCS-GME800SL-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-GME800SL-1.webp?v=1778771767","url":"https:\/\/batteryweb.com\/products\/garmin-edge-800-replacement-battery-37v-1000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}