{"product_id":"zte-blade-l4-pro-replacement-battery-38v-2200mah-li-ion","title":"ZTE Blade L4 Pro Li3822T43P3h746241 Replacement Battery 3.8V 2200mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eZTE Blade L4 Pro \/ A465 \/ A475 — 3.8V Li-ion Replacement Battery (Li3822T43P3h746241)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.8V, 2200mAh Li-ion cell for the ZTE Blade L4 Pro, Blade A465, and Blade A475 smartphones. It replaces the original cell when the phone no longer holds charge, shuts down unexpectedly, or the battery has physically swollen. Capacity is 8.36Wh — matching the original factory specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBlade L4 Pro, A465, and A475 compatibility:\u003c\/strong\u003e\n    All three models share the same battery bay dimensions, connector pinout, and BMS handshake protocol. The Li3822T43P3h746241 and Li3822T43P4h746241 part numbers are interchangeable across this platform — ZTE revised the suffix during a mid-run production change with no electrical difference.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through a full charge-discharge sequence on the Blade A465. The BMS accepted the charge without fault codes, thermal cutoff held stable, and the protection circuit responded correctly to a simulated over-discharge event at 2.5V.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration after install:\u003c\/strong\u003e\n    On first use after installation, disable fast charging and complete one full 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 — preventing erratic percentage readings from the first day.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the Blade L4 Pro reports wrong battery percentage after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe fuel gauge IC on this platform uses a coulomb counter calibrated to the original cell's internal resistance and discharge curve. A new cell has different impedance characteristics, so the saved calibration data no longer maps accurately to actual charge state. The phone may report 40% remaining and then drop to 10% within minutes under screen or modem load. One complete discharge to auto-shutdown followed by an uninterrupted charge to 100% forces the IC to rewrite its reference table against the new cell.\u003c\/p\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\"\u003eThis happens when the cell voltage drops sharply under load — specifically during LTE data bursts or screen-on peaks — before the gauge IC has recalibrated. The cell voltage cliff hits the BMS cutoff threshold even though the displayed percentage looks safe. It is not a defective cell. Run one full calibration cycle first, then check whether shutdowns persist. If they continue after calibration, verify the resting cell voltage sits above 3.7V with a multimeter before reinstalling.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43392052756570,"sku":"BWCS-ZTA465SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43392052789338,"sku":"BWCS-ZTA465SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43392052822106,"sku":"BWCS-ZTA465SL-3","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ZTA465SL-1.webp?v=1779143526","url":"https:\/\/batteryweb.com\/products\/zte-blade-l4-pro-replacement-battery-38v-2200mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}