{"product_id":"vodafone-smart-v8-replacement-battery-385v-3000mah-li-polymer","title":"Vodafone Smart V8 Li3930T44P6h816437 3.85V 3000mAh Replacement Battery","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eVodafone Smart V8 \/ VFD 710 — 3.85V Li-Polymer Replacement Battery (Li3930T44P6h816437)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.85V 3000mAh lithium-polymer cell for the Vodafone Smart V8, Vfone 6+, and VFD 710 smartphones. It replaces the original Li3930T44P6h816437 cell when the existing battery has aged, swollen, or failed. Capacity is rated at 11.55Wh, matching the original specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSmart V8 \/ VFD 710 platform fit:\u003c\/strong\u003e\n    The Smart V8, Vfone 6+, and VFD 710 share the same chassis, connector pinout, and BMS handshake protocol — one cell covers all three variants 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 full charge and discharge on a VFD 710 unit, confirmed the BMS accepted the charge profile, and verified the protection circuit tripped correctly at low-voltage cutoff.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    On first use after installation, disable fast charging and run one complete discharge-charge cycle. This lets the fuel gauge IC map the new cell's discharge curve before high-current charging pushes current into 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 Smart V8 after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe Smart V8's modem and display together draw enough current to cause a rapid voltage sag near the end of the cell's charge curve. If the fuel gauge IC is still calibrated to the old cell, it misreads state-of-charge and cuts the phone before the new cell is actually empty. This is not a defect in the replacement cell — it is a calibration lag in the coulomb counter. Run two full discharge-charge cycles without fast charging to let the IC re-anchor to the new cell's voltage curve.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePhone will not power on after the replacement cell sat in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLithium-polymer cells self-discharge during storage. If the cell voltage has dropped below approximately 2.5V, the BMS enters a lockout state and blocks normal charging to prevent an unsafe recovery charge. Plug into a wall charger — not a PC USB port — and leave it for 20–30 minutes before attempting to power on. If the device still shows nothing after that window, the BMS requires a trickle-charge recovery; use a charger that outputs at least 5V 1A to bring the cell above the BMS unlock threshold of around 3.0V.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43392038895706,"sku":"BWCS-VF710SL-1","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43392038928474,"sku":"BWCS-VF710SL-2","price":30.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43392038961242,"sku":"BWCS-VF710SL-3","price":33.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-VF710SL-1.webp?v=1779143086","url":"https:\/\/batteryweb.com\/products\/vodafone-smart-v8-replacement-battery-385v-3000mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}