{"product_id":"vivo-y53-replacement-battery-385v-2500mah-li-polymer","title":"Vivo Y53 B-C1 Compatible Battery 3.85V 2500mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eVivo Y53 Series — 3.85V Li-Polymer Replacement Battery (B-C1)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThe B-C1 is a 3.85V, 2500mAh Li-Polymer cell that fits the Vivo Y53 and Y53 Dual SIM. It replaces the original internal battery when the existing cell degrades, swells, or can no longer sustain a full day of use. Dimensions are 76.38 × 60.35 × 3.55mm — confirm these against your current cell before installation.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eY53 and Y53 Dual SIM fitment:\u003c\/strong\u003e\n    Both variants share the same battery bay dimensions, connector pinout, and charge IC interface. The B-C1 part number covers both — no hardware difference between the single and dual SIM build that affects battery fitment.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through full charge and discharge cycles, confirming the BMS accepts the charge IC handshake without fault flags. Charge termination landed at 4.35V as expected for this cell chemistry.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    After fitting this cell, disable fast charging and run one complete discharge-to-charge cycle at standard current. This lets the fuel gauge IC map its coulomb counter to the new cell's actual discharge curve before high-current charging begins.\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 Y53 after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Y53's fuel gauge IC holds a discharge curve calibrated to the original cell. A new cell with a slightly different internal resistance profile causes the IC to misread the remaining charge. Under modem or screen load, voltage drops faster than the IC predicts, and the phone shuts down before the percentage reaches zero. One full uninterrupted discharge cycle — from 100% down to automatic shutdown, then a full charge — resets the coulomb counter against the new cell curve. After that cycle, the percentage readings stabilise.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eUSB 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, the charge IC may default to standard 5V charging instead of fast charge. This happens because the BMS on a new cell starts in a conservative protection state until it completes one full cycle with the host device. Let the first charge run to 100% at standard rate without interruption. Fast charge should activate normally from the second cycle onward once the BMS has completed its initialisation handshake with the phone's charge controller.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43392022970458,"sku":"BWCS-BYX531SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43392023003226,"sku":"BWCS-BYX531SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43392023035994,"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\/vivo-y53-replacement-battery-385v-2500mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}