{"product_id":"acer-aspire-one-aod255-a01bk-replacement-battery-111v-4400mah-li-ion","title":"Acer AL10A31 Aspire One AOD255 Compatible Battery 11.1V","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAcer Aspire One AOD255 Series — 11.1V Li-ion Replacement Battery (AL10A31)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is an 11.1V, 4400mAh (48.84Wh) Li-ion battery for the Acer Aspire One AOD255 netbook series. It fits the AOD255-A01B\/K, AOD255-A01B\/W, AOD255-1134, AOD255-1203, and over 136 additional AOD255 variants. OEM part numbers covered include AL10A31, AL10B31, AL10BW, AL10G31, and BT.00603.121 among others.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAOD255 platform compatibility:\u003c\/strong\u003e\n    The entire AOD255 line uses the same 11.1V three-cell Li-ion architecture with a shared connector pinout and BMS handshake protocol. One replacement cell covers the full range of AOD255 variants 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 on an AOD255 unit and confirmed full charge acceptance to 12.6V, correct BMS communication across all three pins, and stable discharge down to the BMS cutoff threshold without mid-cycle interruption.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install recalibration on the AOD255:\u003c\/strong\u003e\n    After fitting this battery, run a full discharge to hibernate-cutoff, then charge uninterrupted to 100% without using the machine. This resets the BIOS battery learn cycle 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\"\u003eAOD255 shutting down at 20–30% battery shown\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC is still calibrated to the old cell's discharge curve. The new cell hits a voltage cliff under combined CPU and display load before the OS gauge reaches zero, triggering an immediate shutdown. The fix is two or three full discharge-to-hibernate cycles followed by uninterrupted charges to 100%. After those cycles, the gauge IC re-maps the cutoff point against the new cell's actual voltage profile.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eBIOS reporting battery health as poor or unknown after swap\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe AOD255 BIOS reads health data from EEPROM registers that were written by the original cell over its service life. A new cell resets those registers, and the BIOS flags the mismatch as a fault rather than a new battery. This is not a defect in the replacement cell. Run one full discharge-to-hibernate followed by a complete charge to 100%, and the BIOS learn cycle will rewrite the EEPROM values to match the new cell's actual capacity.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409824579674,"sku":"BWCS-AC260NT-1","price":98.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409824612442,"sku":"BWCS-AC260NT-2","price":111.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409824645210,"sku":"BWCS-AC260NT-3","price":121.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-AC260NT-1.webp?v=1779581091","url":"https:\/\/batteryweb.com\/products\/acer-aspire-one-aod255-a01bk-replacement-battery-111v-4400mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}