{"product_id":"sureshotgps-8800-replacement-battery-37v-1050mah-li-ion","title":"Sureshotgps 8800 Compatible Battery 3.7V 1050mAh Li-ion","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSureshotgps 8800 \/ 8850 \/ 1110-1 — 3.7V Li-ion Replacement Battery (039B)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 1050mAh lithium-ion cell replaces the original battery in Sureshotgps 8800, 8850, and 1110-1 portable GPS navigators. It matches the OEM dimensions at 51.10 × 34.49 × 5.40mm and slots into the same bay without modification. Voltage and capacity are drawn from product data — 3.89Wh total energy.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e8800, 8850, and 1110-1 compatibility:\u003c\/strong\u003e\n    All three models share the same battery bay dimensions, 3.7V supply rail, and connector pinout — one cell covers the whole group 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 bench. The BMS held the cutoff voltage steady and the protection circuit tripped correctly at low-cell threshold — no runaway, no false shutoff under normal GPS load.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-fix tip after fitting:\u003c\/strong\u003e\n    After installing this cell, power the unit on outdoors immediately and let it run a full cold-start satellite acquisition. A cold start after full power removal can take 5–10 minutes for first fix — this clears once the almanac data refreshes and subsequent locks return to under a minute.\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 when battery drops below half charge\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eSome GPS units step down receiver sensitivity as cell voltage falls — typically below 3.6V — to reduce current draw and extend operation. The result is weaker satellite signal acquisition, wider position error, and slower route recalculation. It reads like a hardware fault but the root cause is a low-voltage power management decision in the firmware. Keep the cell above 3.7V during active navigation to hold full receiver performance.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eDevice shuts off without warning before the battery indicator reaches empty\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe on-screen battery gauge in the 8800 series is calibrated to the original cell's discharge curve. A new cell — or an aged one — can have a slightly different curve, so the device hits its hardware low-voltage cutoff before the indicator shows one bar. This is a calibration mismatch, not a fault with the cell. Run two or three full charge-to-cutoff cycles and the firmware's fuel gauge will recalibrate to the new cell's curve — target a full charge to 4.2V before each discharge cycle during this break-in period.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377667473498,"sku":"BWCS-SUP850SL-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377667506266,"sku":"BWCS-SUP850SL-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377667539034,"sku":"BWCS-SUP850SL-3","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SUP850SL-1.webp?v=1778771819","url":"https:\/\/batteryweb.com\/products\/sureshotgps-8800-replacement-battery-37v-1050mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}