{"product_id":"acer-travelmate-b115-m-replacement-battery-152v-3000mah-li-polymer","title":"Acer TravelMate B115-M 15.2V Replacement Battery AC14B18K","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAcer TravelMate B115-M \/ Chromebook 11 — 15.2V Li-Polymer Replacement Battery (AC14B18K)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 15.2V, 3000mAh (45.6Wh) Li-Polymer replacement battery for the Acer TravelMate B115-M, TravelMate B115-MP, Chromebook 11, and Aspire E3-111 series. It replaces OEM part AC14B18K and its variants, including KT.0040G.004 and AP14B8K. The cell matches the original 4-cell Li-Polymer pack in voltage, form factor, and connector pinout.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eTravelMate B115-M and Chromebook 11 platform fit:\u003c\/strong\u003e\n    These models share the same 15.2V four-cell series configuration, connector housing, and BMS communication protocol. One replacement covers both chassis without adapter or 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 and discharge cycles on a TravelMate B115-M. The BMS handshake completed without fault codes, charge acceptance was normal from the first cycle, and the fuel gauge IC registered the new cell without manual intervention.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-swap learn cycle on TravelMate B-series:\u003c\/strong\u003e\n    After fitting this battery, discharge the laptop fully until it hibernates, then charge uninterrupted to 100% without waking the system. This forces the BIOS battery learn cycle to reset against the new cell and clears the inaccurate health warning that appears after every cell swap on this platform.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003chr class=\"bpw-desc-divider\"\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS reporting battery health as poor immediately after replacement\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe TravelMate B115-M stores battery health data in EEPROM on the original cell. When a new cell installs, the BIOS reads stale EEPROM metrics that don't match the fresh chemistry, flagging it as degraded. This is a firmware calibration issue, not a fault with the replacement cell. Run one full discharge-to-hibernate cycle followed by an uninterrupted charge to 100% — after two to three of these learn cycles, the BIOS recalculates and the health warning clears.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLaptop shutting down at 20–30% charge shown on screen\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC has not yet calibrated against the new cell's actual voltage curve. The gauge maps an old discharge profile onto the new chemistry, so the reported percentage diverges from the real state of charge. Under combined CPU and display load, the cell hits its actual low-voltage cutoff while the screen still shows 20–30%. Run two full discharge-to-hibernate and full-recharge cycles — after calibration, the gauge tracks the new cell accurately and the early shutdowns stop.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43410737168474,"sku":"BWCS-ACB115NB-1","price":104.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43410737201242,"sku":"BWCS-ACB115NB-2","price":118.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43410737234010,"sku":"BWCS-ACB115NB-3","price":129.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-ACB115NB-1.webp?v=1779580772","url":"https:\/\/batteryweb.com\/products\/acer-travelmate-b115-m-replacement-battery-152v-3000mah-li-polymer","provider":"BatteryWeb","version":"1.0","type":"link"}