{"product_id":"samsung-gear-s3-classic-replacement-battery-385v-350mah-li-polymer","title":"Samsung Gear S3 Classic EB-BR760 Replacement Battery 3.85V 350mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSamsung Gear S3 Classic \/ Frontier — 3.85V Li-Polymer Replacement Battery (EB-BR760ABE)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.85V, 350mAh lithium-polymer cell replaces the original EB-BR760ABE battery in the Samsung Gear S3 Classic and Gear S3 Frontier smartwatches, including SM-R760 and SM-R770 variants. It restores full charging capacity to a watch where the original cell has degraded. Dimensions are 31.10 × 23.32 × 5.26mm — measure your existing cell before fitting if unsure.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eGear S3 Classic and Frontier compatibility:\u003c\/strong\u003e\n    Both the Classic and Frontier share the same battery bay geometry, connector pinout, and BMS handshake protocol — they draw from the same 3.85V cell platform, which is why one part number covers both chassis.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell on SM-R760 hardware and confirmed the BMS accepted the new cell without throwing a protection flag. The fuel gauge IC re-referenced correctly after a full charge cycle from near-zero.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap charging step:\u003c\/strong\u003e\n    After fitting the new cell, place the watch on its magnetic charger immediately and charge to 100% before first use. The fuel gauge IC on the Gear S3 platform cannot calibrate its state-of-charge reference without one complete charge cycle from near-empty after a cell swap.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy always-on display and continuous heart rate monitoring drain the Gear S3 faster than expected\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Gear S3's always-on display (AOD) mode keeps the AMOLED panel drawing current continuously rather than only on wrist raise. Pair that with the PPG-based heart rate sensor polling every second, and the combined draw can be two to three times higher than basic notification-only usage. A 350mAh cell is the OEM spec for this chassis — the platform was tuned around it. If drain seems excessive after swap, check AOD and continuous HR settings in Galaxy Wearable before assuming a cell fault.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWatch showing 0% and refusing to power on immediately after battery swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis is a fuel gauge IC calibration loss, not a defective cell. When power is removed during a swap, the MAX17 series fuel gauge on the Gear S3 board loses its stored state-of-charge reference and defaults to 0%. The watch will not boot past the Samsung logo until it reads a valid charge level. Place it on the charger and leave it until the display shows at least 5% — it will power on normally from there, and the gauge recalibrates fully by 100%.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43416170037338,"sku":"BWCS-SMR760SH-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43416170070106,"sku":"BWCS-SMR760SH-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43416170102874,"sku":"BWCS-SMR760SH-3","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SMR760SH-1.webp?v=1779760565","url":"https:\/\/batteryweb.com\/products\/samsung-gear-s3-classic-replacement-battery-385v-350mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}