{"product_id":"samsung-galaxy-s9-replacement-battery-385v-3000mah-li-polymer","title":"Samsung Galaxy S9 EB-BG960ABE Replacement Battery 3.85V 3000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSamsung Galaxy S9 — 3.85V Li-Polymer Replacement Battery (EB-BG960ABE)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3000mAh, 3.85V lithium-polymer replacement battery for the Samsung Galaxy S9 and Galaxy S9 Duos (SM-G960, SM-G960F\/DS). It replaces OEM part EB-BG960ABE and restores power capacity to devices where the original cell has degraded through repeated charge cycles. Fits the SM-G960 series including all regional variants listed under that model line.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSM-G960 series compatibility:\u003c\/strong\u003e\n    All SM-G960 variants share the same battery bay dimensions, connector pinout, and BMS handshake protocol — the fuel gauge IC communicates over the same single-wire bus across the full S9 lineup, so one cell covers the range.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell on an SM-G960F board and confirmed the BMS initialised correctly on first insertion — charge IC accepted the cell without a handshake fault, and the fuel gauge IC began its coulomb-counting sequence from the first power-on.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    Disable fast charging for the first complete discharge-charge cycle after installation. The fuel gauge IC in the S9 recalibrates its discharge curve against the new cell during this cycle — skipping it with a high-current fast charge session leaves the coulomb counter tracking the wrong curve from the start.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Galaxy S9 reports wrong battery percentage after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe S9 uses a coulomb-counter fuel gauge IC that stores a learned discharge curve from the original cell. When a new cell goes in, that stored curve no longer matches the actual voltage-versus-capacity profile of the replacement. The gauge reads voltage correctly but maps it to the wrong state-of-charge point, so the displayed percentage drifts. One full uninterrupted discharge down to automatic shutdown — followed by a full charge to 100% — forces the IC to relearn the curve against the new cell.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSudden shutdown at 20–30% charge remaining\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis is a voltage-cliff failure — under heavy load from the modem, screen, or both simultaneously, the cell voltage drops sharply before the fuel gauge reaches 0%. The S9's power IC triggers an emergency cutoff when cell voltage falls below roughly 3.4V under load, even if the displayed percentage looks safe. A degraded or uncalibrated cell hits that voltage floor much earlier in its discharge curve than the gauge expects. After the fuel gauge recalibration cycle described above, test under a full-screen brightness video stream — if shutdown still occurs above 15%, the cell voltage under load is the issue to recheck.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43392031031386,"sku":"BWCS-SMG960SL-1","price":25.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43392031064154,"sku":"BWCS-SMG960SL-2","price":28.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43392031096922,"sku":"BWCS-SMG960SL-3","price":31.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SMG960SL-1.webp?v=1779143030","url":"https:\/\/batteryweb.com\/products\/samsung-galaxy-s9-replacement-battery-385v-3000mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}