{"product_id":"alcatel-3t-replacement-battery-385v-3900mah-li-polymer","title":"Alcatel 3T Tablet Compatible Battery TLP040M7 3.85V 3900mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAlcatel 3T \/ OT-9032T — 3.85V Li-Polymer Replacement Battery (TLP040M7)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.85V, 3900mAh Li-Polymer battery replaces the original TLP040M7 \/ TLP040M1 cells in the Alcatel 3T and OT-9032T tablets. It restores full power to the display, processor, and wireless radios where the original cell has degraded or failed. Voltage and capacity match OEM specification exactly.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003e3T and OT-9032T fit:\u003c\/strong\u003e\n    Both models share the same chassis dimensions, connector pinout, and charge IC handshake. The TLP040M7 and TLP040M1 part numbers are interchangeable across these variants — same cell, same BMS communication protocol.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran this battery through charge and discharge cycles on a 3T unit. The BMS accepted charge from the stock adapter without fault codes, and the charge IC stepped through CC\/CV stages correctly with no thermal interruption.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge recalibration after swap:\u003c\/strong\u003e\n    After fitting this battery, run one full discharge to automatic shutoff — do not force-power it off — then charge uninterrupted to 100%. The fuel gauge IC on the 3T calibrates against the new cell during this cycle and clears the inaccurate percentage readings that appear immediately after a swap.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eAlcatel 3T shutting down at 15–25% remaining\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe 3T runs the display backlight and WiFi radio simultaneously under normal use — this combined load draws enough current to create a rapid voltage drop near the bottom of the discharge curve. When the cell voltage hits the BMS low-voltage cutoff threshold, the tablet shuts down even though the OS still shows remaining percentage. A worn original cell reaches this cutoff faster because internal resistance is higher. After fitting a new cell, one full discharge-to-shutoff cycle resets the fuel gauge and aligns the reported percentage with actual cell voltage.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eFast charging not available after battery replacement on the 3T\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eSome 3T units stop offering fast charge immediately after a battery swap — the charge IC needs one accepted full charge cycle before it re-enables the higher current negotiation with the adapter. Use the original Alcatel charger for the first full cycle, not a third-party cable or hub. If fast charge still does not appear after one complete cycle, check that the USB-C connector on the tablet is fully seated and free of debris. A clean port and the correct adapter are the two variables that matter here.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43425836990554,"sku":"BWCS-ALT300SL-1","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43425837023322,"sku":"BWCS-ALT300SL-2","price":33.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43425837056090,"sku":"BWCS-ALT300SL-3","price":36.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ALT300SL-1.webp?v=1779929902","url":"https:\/\/batteryweb.com\/products\/alcatel-3t-replacement-battery-385v-3900mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}