{"product_id":"alcatel-ot-8055-replacement-battery-37v-2800mah-li-polymer","title":"Alcatel OT-8055 Replacement Battery 3.7V 2800mAh TLp028B2","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAlcatel OT-8055 \/ One Touch Pixi 3 (7) — 3.7V Li-Polymer Replacement Battery (TLp028B2)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 3.7V, 2800mAh lithium-polymer battery replaces OEM part TLp028B2 in the Alcatel OT-8055 and related Pixi 3 (7) tablets. It also fits the OT-8057 and OT-9002X. Swap it in when the original cell no longer holds a usable charge through a normal day of screen-on use.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOT-8055 \/ OT-8057 \/ OT-9002X platform fit:\u003c\/strong\u003e\n    These models share the same battery bay dimensions, connector pinout, and BMS handshake protocol. The TLp028B2 cell works across the group without any adapter or wiring change.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this battery through charge and discharge on the OT-8055 platform. The BMS accepted the cell on first connection, reported voltage correctly to the OS, and held the charge curve through a full cycle without cutoff errors.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFuel gauge reset after installation:\u003c\/strong\u003e\n    After fitting this cell, run one full discharge to automatic shutoff, then charge uninterrupted to 100%. This recalibrates the fuel gauge IC against the new cell and clears the percentage drift that typically appears 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 Pixi 3 (7) shutting down at 15–25% remaining\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe OT-8055 draws hardest when the display is at full brightness with WiFi actively transferring data. At that combined load, the battery voltage sags faster than the fuel gauge predicts. The system reads that sag as a critically low cell and triggers an emergency shutdown before the reported percentage reaches zero. Running one full discharge-to-shutoff cycle after installation tightens the fuel gauge model against the actual cell voltage curve and pushes that premature cutoff threshold down to a realistic level.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eTablet showing wrong battery percentage right after the swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe fuel gauge IC on the Pixi 3 (7) board stores calibration data from the old cell — it does not auto-detect a new one on first boot. Until recalibrated, it can report anything from 40% to 80% on a fully charged new cell. Discharge the tablet to automatic shutoff, then charge it in one uninterrupted session to 100%. That single cycle writes new calibration data to the IC and the percentage display stabilises. If drift persists after one cycle, run a second full discharge-charge and confirm charger voltage is at least 5V.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43425846558810,"sku":"BWCS-HUC150SL-1","price":26.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43425846591578,"sku":"BWCS-HUC150SL-2","price":30.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43425846624346,"sku":"BWCS-HUC150SL-3","price":33.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-HUC150SL-1.webp?v=1779929950","url":"https:\/\/batteryweb.com\/products\/alcatel-ot-8055-replacement-battery-37v-2800mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}