{"product_id":"tcl-one-touch-pop-d5-replacement-battery-37v-1600mah-li-ion","title":"TCL One Touch Pop D5 Replacement Battery TLi018D1 3.7V","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eTCL One Touch Pop D5 \/ OT-5038 Series — 3.7V Li-ion Replacement Battery (TLi018D1)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3.7V, 1600mAh Li-ion battery for the TCL One Touch Pop D5 and its OT-5038 variants (OT-5038A, OT-5038E, and six additional regional SKUs). It replaces OEM part numbers TLi018D1 and TLi018D2. The cell fits the standard rear-access battery bay and connects via the original contact strip.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOT-5038 variant coverage:\u003c\/strong\u003e\n    The OT-5038A, OT-5038E, and other regional builds share the same 3.7V battery rail, connector pitch, and BMS handshake as the base D5 — one cell covers the full family without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this cell through charge-discharge cycles on OT-5038 hardware and confirmed the BMS accepted the new cell, balanced correctly at top-of-charge, and held voltage above the low-battery cutoff threshold without premature shutdown events.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first cycle:\u003c\/strong\u003e\n    After installing this cell, disable any fast-charge mode and run one complete discharge-to-charge cycle before normal use. The D5's fuel gauge IC is calibrated to the old cell's discharge curve — one full cycle against the new cell lets it recalibrate the coulomb counter before high-current charging begins.\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 OT-5038 after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe OT-5038's modem and display draw a combined current spike that causes voltage sag on a new, uncalibrated cell. The fuel gauge IC still shows 20–30% remaining because it hasn't yet mapped the new cell's actual discharge curve. When the cell voltage dips below the BMS cutoff — typically around 3.2–3.3V under load — the phone shuts down regardless of the percentage shown. One full discharge-charge cycle corrects the fuel gauge IC's reference data and eliminates the early shutdowns.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003ePhone reports wrong battery percentage after replacement\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe D5 uses a coulomb counter in its fuel gauge IC, which was calibrated against the original cell's internal resistance and capacity profile. A new cell has different impedance characteristics, so the counter's reference values are immediately out of sync. This shows up as percentage jumps, stalled readings at a fixed number, or the indicator skipping from 15% to 1% without warning. Drain the battery fully until the phone powers off, then charge uninterrupted to 100% — the IC resets its reference curve on that single cycle.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43392090538074,"sku":"BWCS-OT503SL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43392090570842,"sku":"BWCS-OT503SL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43392090603610,"sku":"BWCS-OT503SL-3","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-OT503SL-1.webp?v=1778773879","url":"https:\/\/batteryweb.com\/products\/tcl-one-touch-pop-d5-replacement-battery-37v-1600mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}