{"product_id":"samsung-galaxy-s23-replacement-battery-388v-4600mah-li-polymer","title":"Samsung Galaxy S23+ EB-BS916ABY Replacement Battery 3.88V 4600mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eSamsung Galaxy S23+ — 3.88V Li-Polymer Replacement Battery (EB-BS916ABY)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.88V, 4600mAh Li-Polymer cell replaces the original battery in the Samsung Galaxy S23+ and SM-S916B\/SM-S916W variants. It matches the OEM voltage rail, physical dimensions, and connector pinout for the S23+ chassis. Capacity is 4600mAh (17.85Wh) — pulled directly from product data, not estimated.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSM-S916 platform fit:\u003c\/strong\u003e\n    The S23+ and S23 Plus share the same battery bay geometry, flex connector, and BMS handshake protocol. Any variant in the SM-S916 series uses the same EB-BS916ABY specification, so one cell covers the full lineup without 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-S916B unit. The BMS accepted the charge without fault flags, and the fuel gauge IC tracked voltage correctly across the discharge curve.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    On first installation, disable fast charging and run one complete discharge-charge cycle at standard speed. This lets the coulomb counter IC map the new cell's discharge curve before adaptive charging algorithms apply high-current profiles to an uncalibrated cell.\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+ runs a Snapdragon 8 Gen 2 with a high-power modem and a 120Hz LTPO display — both spike current draw instantly. A new cell with an uncalibrated fuel gauge IC can report 25% remaining while actual cell voltage is already near the BMS cutoff threshold. When the modem or screen triggers a current spike, the cell voltage drops below 3.4V and the BMS cuts output before the OS registers low battery. One full slow discharge-charge cycle syncs the coulomb counter to the actual cell curve and eliminates this behaviour.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eUSB-PD fast charge not activating on the first cycle after installation\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eSamsung's adaptive fast charging protocol requires a BMS handshake before the charge IC negotiates elevated current. On a freshly installed cell, the BMS may not complete that handshake on the first charge attempt, so the phone defaults to standard 5W input. This is not a fault in the cell or the charger. Disconnect, reboot the device, and reconnect the charger — the handshake completes on the second attempt and fast charging resumes at the rated input voltage.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43391822430298,"sku":"BWCS-SMG916SL-1","price":30.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43391822463066,"sku":"BWCS-SMG916SL-2","price":35.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43391822495834,"sku":"BWCS-SMG916SL-3","price":38.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-SMG916SL-1.webp?v=1779142282","url":"https:\/\/batteryweb.com\/products\/samsung-galaxy-s23-replacement-battery-388v-4600mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}