{"product_id":"bbk-vivo-x6-plus-a-replacement-battery-385v-4000mah-li-polymer","title":"BBK VIVO X6 Plus A B-96 Replacement Battery 3.85V 4000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eBBK Vivo X6 Plus A — 3.85V Li-Polymer Replacement Battery (B-96)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.85V, 4000mAh (15.4Wh) lithium-polymer battery for the Vivo X6 Plus A and Vivo X6 Plus A Dual SIM TD-LTE smartphones. OEM part numbers B-96 and BK-B-96 confirm fitment. The cell matches the original footprint at 85.05 × 68.10 × 4.40 mm, so no case modification is needed.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eX6 Plus A and Dual SIM TD-LTE fitment:\u003c\/strong\u003e\n    Both variants share the same battery bay dimensions, connector pinout, and BMS handshake protocol — one cell covers both. The voltage rail and thermal pad placement are identical across the two models.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through charge and discharge cycles on the X6 Plus A platform. The BMS accepted the cell on the first charge cycle without flagging an incompatibility error, and voltage output held steady under display and modem load.\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 on the X6 Plus A calibrates its coulomb counter against the cell's discharge curve on that first pass — running fast charge into an uncalibrated cell skews percentage readings for weeks.\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 replacement cell\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Vivo X6 Plus A fuel gauge IC maps its shutdown threshold to the discharge curve of the original cell. A new cell has a slightly different internal resistance profile, so the voltage can drop sharply under modem or screen load at around 20–30% — the IC reads this as a critical low and cuts power. This is not a faulty battery. One full uninterrupted discharge down to automatic shutdown, followed by a full charge to 100%, forces the coulomb counter to remap its curve to the new cell. After that cycle, early shutdowns stop.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePhone shows 1% and won't power on after the battery sat unused\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLi-polymer cells self-discharge in storage, and if the cell drops below approximately 2.5V the BMS trips into deep-discharge lockout to prevent cell damage. The phone will not respond to a normal charger connection in this state. Connect the phone to a wall adapter — not a computer USB port — and leave it for 20–30 minutes without attempting to power it on. The charge IC needs to trickle current into the cell until it crosses back above the BMS re-enable threshold of around 3.0V, at which point the phone will show the charging animation and boot normally.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43392111411290,"sku":"BWCS-BYX620SL-1","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43392111444058,"sku":"BWCS-BYX620SL-2","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43392111476826,"sku":"BWCS-BYX620SL-3","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-BYX620SL-1.webp?v=1779143847","url":"https:\/\/batteryweb.com\/products\/bbk-vivo-x6-plus-a-replacement-battery-385v-4000mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}