{"product_id":"tcl-s950-replacement-battery-38v-2000mah-li-polymer","title":"TCL S950 Replacement Battery 3.8V 2000mAh Li-Polymer","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eTCL S950 \/ S950T — 3.8V Li-Polymer Replacement Battery\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.8V, 2000mAh lithium-polymer battery replaces the original cell in the TCL S950 and S950T smartphones. It measures 73.75 × 55.46 × 3.52mm — match those dimensions against your existing cell before fitting. Capacity is 7.6Wh at the rated voltage.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eS950 and S950T compatibility:\u003c\/strong\u003e\n    Both variants run the same battery bay dimensions and voltage rail, so they share this cell. The connector pinout and BMS handshake protocol are identical across both model codes.\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 full discharge on the S950 platform. The BMS accepted the cell without lockout, and charge termination triggered correctly at 4.35V.\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 gives the fuel gauge IC time to map the new cell's discharge curve before high-current charging pushes load 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  \u003cp class=\"bpw-desc-p\"\u003eThis is a voltage cliff problem, not a capacity problem. Under peak modem or display load, the new cell's voltage drops faster than the fuel gauge IC expects based on the old cell's discharge curve. The phone's low-voltage protection trips before the percentage reaches zero. Run one full discharge to 0% and a full charge to 100% without interruption — this resets the coulomb counter and gives the IC an accurate baseline. After one complete cycle, shutdowns at 20–30% typically stop.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePhone not powering on after the battery sat in storage\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eLithium-polymer cells in storage self-discharge slowly. If the cell drops below roughly 2.5V per cell, the BMS enters lockout and blocks normal charging to prevent thermal runaway on a deeply discharged cell. Plugging into a standard charger shows nothing — no charging indicator, no boot. Connect to a 5V USB charger and leave it for 20–30 minutes without pressing the power button; the charge IC trickle-charges the cell back above the BMS re-enable threshold, typically around 2.8V, at which point normal charging resumes.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43404273811546,"sku":"BWCS-OT604XL-1","price":24.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43404273844314,"sku":"BWCS-OT604XL-2","price":27.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43404273877082,"sku":"BWCS-OT604XL-3","price":30.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-OT604XL-1.webp?v=1779369616","url":"https:\/\/batteryweb.com\/products\/tcl-s950-replacement-battery-38v-2000mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}