{"product_id":"alcatel-ot-4005d-replacement-battery-37v-1300mah-li-ion","title":"Alcatel TLi014A1 Replacement Battery 3.7V 1300mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAlcatel One Touch 4005D Series — 3.7V Li-ion Replacement Battery (TLi014A1)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 1300mAh Li-ion cell replaces the original TLi014A1 battery in the Alcatel OT-4005D, One Touch Glory 2T, OT-5020, and over 65 compatible models. It matches the original cell's dimensions (64.18 × 49.95 × 4.15mm), connector orientation, and BMS handshake protocol. Capacity is drawn directly from product data at 4.81Wh — no rounding, no inflation.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOT-4005D and Glory 2T platform fit:\u003c\/strong\u003e\n    These models share the same battery bay geometry, 3.7V power rail, and connector pinout. The BMS on each accepts the same charge termination signal, so one cell covers the full OT-4005D platform 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 full charge and discharge cycles on the OT-4005D. The BMS accepted charge termination correctly at 4.2V, and the protection circuit tripped cleanly at the low-voltage cutoff threshold without requiring a manual reset.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration on first use:\u003c\/strong\u003e\n    On first installation, disable fast charging and run one complete discharge-to-charge cycle before normal use. This lets the fuel gauge IC map its coulomb counter to the new cell's actual discharge curve — skipping this step is the primary cause of erratic percentage readings after a cell swap.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eWhy the OT-4005D reports wrong battery percentage after a cell swap\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe OT-4005D uses a fuel gauge IC that builds its capacity model from the previous cell's discharge history stored in memory. When a new cell goes in, the IC still references the old curve, so the percentage display drifts — often reading full when the cell is at 70%, or dropping sharply in the final 20%. One full uninterrupted discharge followed by a complete charge to 4.2V forces the IC to rebuild its reference table against the new cell's actual characteristics. After that single cycle, percentage tracking stabilises for normal use.\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 modem activity or screen load, the cell's internal impedance causes a sharp voltage drop that triggers the hardware undervoltage cutoff before the fuel gauge hits 0%. The fuel gauge IC has not yet learned this cell's sag profile, so it fails to predict the cliff. Run two full discharge-charge cycles without interruption — by the second cycle, the coulomb counter adjusts its end-of-discharge prediction and shutdowns at 20–30% stop occurring. If the issue persists past cycle three, check that the connector is fully seated and contact resistance is below 0.1Ω.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43404302090330,"sku":"BWCS-OT405XL-1","price":23.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43404302123098,"sku":"BWCS-OT405XL-2","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43404302155866,"sku":"BWCS-OT405XL-3","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-OT405XL-1.webp?v=1779369657","url":"https:\/\/batteryweb.com\/products\/alcatel-ot-4005d-replacement-battery-37v-1300mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}