{"product_id":"microtracker-sms-replacement-battery-37v-1050mah-li-ion","title":"Microtracker SMS GPS Navigator Replacement Battery 3.7V 1050mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eMicrotracker SMS \/ GPRS — 3.7V Li-ion 1050mAh Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V Li-ion cell replaces the original battery in the Microtracker SMS and GPRS portable GPS trackers, including hardware revisions 01-065-0624-0 and 01-065-0625-0. Capacity is 1050mAh (3.89Wh), matching the original specification. It fits the same physical cavity and uses the same connector orientation as the factory cell.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSMS, GPRS, and revision variants:\u003c\/strong\u003e\n    These four model numbers share the same 3.7V single-cell architecture and identical battery bay dimensions — 51.10 × 34.49 × 5.40mm. The BMS handshake and connector pinout are consistent across all four, so one cell covers the full range.\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 GPS platform and confirmed the BMS accepts the cell without fault codes. Cutoff voltage at low state-of-charge triggered cleanly at the expected threshold with no premature shutoff.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eCold-start procedure after fitting:\u003c\/strong\u003e\n    A full power interruption resets the GPS receiver to cold-start mode. After fitting this cell, power the unit on outdoors with a clear sky view and allow it to acquire a satellite fix before moving — first fix can take 5 to 10 minutes, compared to under a minute for subsequent warm starts.\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 charge runs low\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eSome GPS receivers step down radio-frequency sensitivity as supply voltage drops toward the lower cutoff threshold. On the Microtracker SMS platform, this presents as position drift or a wider accuracy circle on-screen before the unit shuts off. The receiver trades signal acquisition strength for power conservation. Keep the cell above 3.6V under load if positional accuracy is critical during active tracking.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eDevice shuts off without a low-battery warning\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eAfter a full battery swap, the on-device fuel gauge has no calibration data for the new cell. The unit reads state-of-charge from a stored voltage curve, and that curve can be misaligned on the first few cycles. The protection circuit hits the hard voltage cutoff before the visual indicator catches up, so the device goes dark with no warning. Run two full charge-to-discharge cycles to let the gauge re-anchor to the new cell — after that, the low-battery indicator triggers at the correct threshold.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43377667211354,"sku":"BWCS-SUP850SL-1","price":22.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43377667244122,"sku":"BWCS-SUP850SL-2","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43377667276890,"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\/microtracker-sms-replacement-battery-37v-1050mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}