{"product_id":"alcatel-5v-replacement-battery-385v-3900mah-li-polymer","title":"TLP038C7 Alcatel 5V Compatible Battery 3.85V 3900mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAlcatel 5V \/ OT-5060D \/ OT-5060A — 3.85V Li-Polymer Replacement Battery (TLP038C7)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 3900mAh, 3.85V lithium-polymer cell that replaces the TLP038C7 battery in the Alcatel 5V, OT-5060D, and OT-5060A smartphones. It fits phones that have stopped holding charge, shut down unexpectedly, or have a swollen original cell. Capacity matches the OEM spec at 15.02Wh.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e5V \/ OT-5060D \/ OT-5060A platform fit:\u003c\/strong\u003e\n    All three model numbers share the same PCB layout, connector pinout, and BMS handshake protocol. The TLP038C7 cell communicates directly with the phone's fuel gauge IC — a mismatched cell will trigger charge cutoff or incorrect reporting from day one.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through charge, discharge, and a full modem-load draw test. The BMS held cutoff voltage correctly at both ends, and the charge IC accepted the cell without throwing an error state.\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 map the new cell's discharge curve before high-current charging pushes current 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 Alcatel 5V after a cell swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens because the fuel gauge IC is still using the discharge curve from the old, degraded cell. When the new cell reaches a voltage point the IC hasn't seen before, it misreads state-of-charge and triggers a shutdown at what looks like 20–30% remaining. The phone isn't actually at that charge level — the coulomb counter is out of sync with the new cell. One full discharge to auto-off followed by an uninterrupted charge to 100% resets the calibration.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eUSB fast charge not activating after installing the TLP038C7\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eOn the first cycle after a cell swap, the charge IC sometimes refuses to negotiate the fast-charge protocol until it has completed at least one standard charge cycle. This is a BMS protection behaviour — the controller won't accept elevated current into a cell it hasn't profiled yet. Charge once at standard speed using the original cable and wall adapter. Fast charging typically resumes normally from the second cycle onward.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43391929024602,"sku":"BWCS-OPV506SL-1","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43391929057370,"sku":"BWCS-OPV506SL-2","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43391929090138,"sku":"BWCS-OPV506SL-3","price":32.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-OPV506SL-1.webp?v=1779142678","url":"https:\/\/batteryweb.com\/products\/alcatel-5v-replacement-battery-385v-3900mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}