{"product_id":"zte-blade-a2-plus-replacement-battery-385v-4900mah-li-polymer","title":"ZTE Blade A2 Plus Compatible Battery Li3949T44P8h945754 3.85V 4900mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eZTE Blade A2 Plus — 3.85V Li-Polymer Replacement Battery (Li3949T44P8h945754)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.85V, 4900mAh (18.87Wh) Li-Polymer cell for the ZTE Blade A2 Plus and Blade A2 Plus Dual SIM TD-LTE (BV0720, BV0730). It replaces OEM part Li3949T44P8h945754 when the original cell no longer holds a usable charge. The battery powers the processor, display, modem, and all onboard functions.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBlade A2 Plus and BV0720\/BV0730 compatibility:\u003c\/strong\u003e\n    These model variants share the same battery bay dimensions (92.20 × 56.50 × 5.30mm), connector pinout, and BMS handshake protocol — one cell covers all of them 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 the Blade A2 Plus platform and confirmed the BMS accepted the cell, completed a full charge without error flags, and held voltage through screen-on and modem-active loads.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first install:\u003c\/strong\u003e\n    On first use after installation, disable fast charging for one complete discharge-charge cycle. This lets the fuel gauge IC map the new cell's discharge curve before the charge IC pushes high current into an uncalibrated cell — preventing erratic percentage readings from the start.\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 Blade A2 Plus\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Blade A2 Plus shuts off abruptly at 20–30% remaining when the cell can no longer sustain voltage under modem or display load spikes. A degraded original cell may read 3.65V at rest but collapse below the BMS cutoff threshold — around 3.0V per cell — the moment current demand peaks. A fresh 4900mAh cell with lower internal resistance holds voltage through those transients. After fitting this replacement, run one full discharge-charge cycle before relying on the percentage readout.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eUSB fast charge not responding on the first cycle after cell replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eAfter swapping the cell, some users find fast charging does not activate — the phone charges slowly or the fast-charge indicator never appears. This happens because the BMS on a fresh cell starts in a conservative trickle state until it completes one full charge cycle and handshakes with the charge IC. Force a full discharge down to auto-shutoff, then charge uninterrupted to 100% with the screen off. Fast charge should negotiate normally from the second cycle onward.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43392039288922,"sku":"BWCS-ZTV730XL-1","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43392039321690,"sku":"BWCS-ZTV730XL-2","price":31.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43392039354458,"sku":"BWCS-ZTV730XL-3","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ZTV730XL-1.webp?v=1779143086","url":"https:\/\/batteryweb.com\/products\/zte-blade-a2-plus-replacement-battery-385v-4900mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}