{"product_id":"bbk-vivo-y53-replacement-battery-385v-2500mah-li-polymer","title":"BBK VIVO Y53 Replacement Battery B-C1 3.85V 2500mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBBK VIVO Y53 — 3.85V Li-Polymer Replacement Battery (B-C1)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.85V, 2500mAh (9.63Wh) Li-Polymer battery carrying OEM part number B-C1. It fits the VIVO Y53 and VIVO Y53 Dual SIM smartphones. Swap it when the original cell can no longer hold charge through a normal day of calls, messaging, or app use.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eVIVO Y53 and Y53 Dual SIM compatibility:\u003c\/strong\u003e\n    Both variants share the same battery bay dimensions (76.38 × 60.35 × 3.55mm), the same B-C1 connector pinout, and the same BMS handshake protocol — one cell fits both without modification.\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 a VIVO Y53 unit. The BMS accepted the new cell without fault codes, and the protection circuit tripped correctly at the low-voltage cutoff threshold during discharge stress testing.\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 run one full discharge-to-charge cycle at standard current. This lets the fuel gauge IC map the new cell's discharge curve before the system starts applying high-current charge rates 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 VIVO Y53 after a battery swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe VIVO Y53 fuel gauge IC retains the discharge curve of the old cell in its coulomb counter memory. When a new cell is installed, the IC predicts voltage drop using the old curve. The new cell hits its actual voltage cliff — where internal resistance causes voltage to sag fast under modem or screen load — at a different state of charge than the IC expects. The phone shuts down to protect the cell, even though the percentage displayed looks safe. One full discharge-charge cycle at standard current resets the coulomb counter against the real cell curve and stops the premature cutoff.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eUSB fast charge not working after fitting the B-C1 replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eOn the first cycle after a cell swap, the charge IC on the VIVO Y53 may default to standard 5V\/1A input rather than stepping up to fast charge mode. This happens because the charge controller re-evaluates cell impedance on the first charge handshake, and a new cell with a slightly different impedance profile can cause the controller to hold back high-current delivery until it has a stable impedance reading. Run the first full charge at standard rate without interruption. After that cycle completes, fast charging typically resumes — confirm the fast charge icon appears at around 4.2V on the next charge session.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43392022872154,"sku":"BWCS-BYX531SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43392022904922,"sku":"BWCS-BYX531SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43392022937690,"sku":"BWCS-BYX531SL-3","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-BYX531SL-1.webp?v=1779142943","url":"https:\/\/batteryweb.com\/products\/bbk-vivo-y53-replacement-battery-385v-2500mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}