{"product_id":"samsung-galaxy-s23-replacement-battery-388v-3750mah-li-polymer","title":"Samsung Galaxy S23 EB-BS912ABY Replacement Battery 3.88V 3750mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSamsung Galaxy S23 Series — 3.88V Li-Polymer Replacement Battery (EB-BS912ABY)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3750mAh Li-Polymer cell at 3.88V nominal, built to replace the original EB-BS912ABY in the Samsung Galaxy S23 lineup. It fits the SM-S911B, SM-S911T, SM-S911W, and eight additional S23 variants that share the same battery bay and BMS handshake. Capacity and voltage match the factory specification exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eS23 variant compatibility:\u003c\/strong\u003e\n    Every SM-S911 model in this series runs the same 3.88V power rail, uses the same flex connector, and communicates with the same fuel gauge IC — which is why one cell covers the full range without hardware modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through a full charge-discharge cycle on an SM-S911B, confirming the BMS accepted the cell without a fault flag and that the coulomb counter tracked state-of-charge without jumping at low percentages.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    After installation, disable fast charging and complete one full discharge down to automatic shutdown, then charge to 100% on standard 15W. This gives the fuel gauge IC one clean cycle to map the new cell's actual discharge curve before any high-current session runs against an uncalibrated table.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eSudden shutdown at 20–30% on the S23 after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe S23's fuel gauge IC stores a learned discharge curve from the original cell. When you install a fresh cell, that stored curve no longer matches the new cell's actual voltage-to-capacity profile. At around 20–30% reported charge, the real cell voltage can drop below the modem and display load threshold before the OS has time to trigger a graceful shutdown. This is a calibration mismatch, not a defective cell. One full discharge-to-shutdown followed by an uninterrupted charge to 100% rewrites the curve. After that cycle, shutdowns at elevated percentages stop.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eUSB-PD fast charge not activating on the first cycle after replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eOn the first charge after installation, some S23 units present a standard 5W charge rate rather than triggering the 25W USB-PD handshake. The charge IC runs a brief cell-health interrogation on an unfamiliar BMS and defaults to a lower current profile until it receives a valid response. This is normal first-cycle behaviour — it is not a charger fault or a cable fault. Disconnect, wait 30 seconds, reconnect with the original Samsung 25W adapter, and the PD negotiation completes at the correct rate.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43391820824666,"sku":"BWCS-SMS911SL-1","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43391820857434,"sku":"BWCS-SMS911SL-2","price":30.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43391820890202,"sku":"BWCS-SMS911SL-3","price":33.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SMS911SL-1.webp?v=1779142282","url":"https:\/\/batteryweb.com\/products\/samsung-galaxy-s23-replacement-battery-388v-3750mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}