{"product_id":"vivo-iqoo-5-pro-replacement-battery-774v-2000mah-li-polymer","title":"Vivo iQOO 5 Pro B-O2 Replacement Battery 7.74V 2000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eVivo iQOO 5 Pro — 7.74V Li-Polymer Replacement Battery (B-O2)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.74V, 2000mAh Li-Polymer replacement cell for the Vivo iQOO 5 Pro, iQOO 5 Pro 5G, and V2025A. It directly replaces the original B-O2 battery. Swap it in when the original cell can no longer hold charge or shuts the phone down unexpectedly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eiQOO 5 Pro \/ V2025A platform fit:\u003c\/strong\u003e\n    The iQOO 5 Pro, iQOO 5 Pro 5G, and V2025A all run the same dual-cell 7.74V configuration with identical connector pin-out and BMS handshake protocol — one cell covers all three variants.\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 iQOO 5 Pro hardware. The BMS accepted the cell without fault codes, and the charge IC stepped through the correct CC\/CV phases to full termination.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle fast charge protocol:\u003c\/strong\u003e\n    On first use after installation, disable fast charging and run one complete discharge-to-charge cycle at standard rate. This lets the fuel gauge IC build an accurate discharge curve for the new cell before high-current fast charging pushes current into an uncalibrated state.\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\n  \u003cp class=\"bpw-desc-p\"\u003eThe iQOO 5 Pro's modem and display pull hard, simultaneous current spikes during 5G handoff and screen wake events. A new cell with a discharge curve the fuel gauge IC hasn't mapped yet will hit a voltage sag the IC misreads as adequate capacity — until the load spike collapses cell voltage below the BMS cutoff threshold. The phone reads 25% and then cuts off instantly. One full discharge-charge cycle at standard rate recalibrates the coulomb counter and eliminates this behaviour.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eUSB-PD fast charge not accepting the replacement cell on first cycle\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eAfter a cell swap, the charge IC briefly rejects high-current fast charge modes until it has confirmed the new cell's impedance profile. Vivo's proprietary fast charge protocol negotiates current levels against BMS data — a fresh cell with no charge history causes the IC to fall back to standard 5V charging on the first cycle. This is normal and not a fault with the replacement cell. Plug in, let it complete one full standard-rate charge, and fast charging will re-enable automatically on the next session.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43391857229914,"sku":"BWCS-BKV202SL-1","price":31.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43391857262682,"sku":"BWCS-BKV202SL-2","price":36.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43391857295450,"sku":"BWCS-BKV202SL-3","price":40.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-BKV202SL-1.webp?v=1779142367","url":"https:\/\/batteryweb.com\/products\/vivo-iqoo-5-pro-replacement-battery-774v-2000mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}