{"product_id":"zte-t8-replacement-battery-37v-1000mah-li-ion","title":"ZTE T8 Li3711T42P3h513857 Compatible Battery 3.7V 1000mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eZTE T8 \/ Tureis \/ C310 \/ C311 — 3.7V Li-ion Replacement Battery (Li3711T42P3h513857)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1000mAh Li-ion replacement cell for the ZTE T8 and compatible models including the Tureis, C310, and C311. It uses OEM part number Li3711T42P3h513857 and slots directly into the same battery bay as the original. Voltage and physical dimensions (51 × 37 × 5.50mm) match the stock specification.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eT8 \/ Tureis \/ C310 \/ C311 platform:\u003c\/strong\u003e\n    These models share the same battery bay geometry, connector pinout, and BMS handshake protocol — all running off the same 3.7V single-cell Li-ion architecture. One cell fits all four without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran full charge and load cycles on this cell and confirmed the BMS communicates correctly with the charge IC — no false low-battery flags, no premature cutoff under typical screen and modem load.\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 for one complete discharge-charge cycle. This lets the fuel gauge IC recalibrate against 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\"\u003eWhy the ZTE T8 reports wrong battery percentage after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe T8's fuel gauge IC builds a charge model around the original cell's impedance and discharge curve over time. When a new cell goes in, that model is stale — the IC is still referencing the old cell's behaviour. This causes the percentage displayed to drift from the actual state of charge. One full discharge down to auto-shutdown followed by a complete charge to 100% forces the coulomb counter to reset and remap 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 is a voltage cliff issue, not a capacity problem. Under peak modem transmit or screen-on load, the new cell briefly drops below the BMS low-voltage threshold even though the reported percentage looks safe. The BMS trips and cuts power to protect the cell. To confirm, charge to 100%, run the phone normally, and note the exact percentage at shutdown — if it repeats at the same point, the fuel gauge IC needs a full recalibration cycle to map the actual voltage curve of the new cell. One complete discharge-to-shutdown and full recharge typically resolves it.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43405063159898,"sku":"BWCS-ZTT800SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43405063192666,"sku":"BWCS-ZTT800SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43405063225434,"sku":"BWCS-ZTT800SL-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ZTT800SL-1.webp?v=1779369899","url":"https:\/\/batteryweb.com\/products\/zte-t8-replacement-battery-37v-1000mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}