{"product_id":"asus-eee-pc-901-replacement-battery-74v-6600mah-li-ion","title":"Asus Eee PC 901 Replacement Battery AL23-901 7.4V 6600mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAsus Eee PC 901 \/ 1000 Series — 7.4V Li-ion Replacement Battery (AL23-901)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 7.4V, 6600mAh (48.84Wh) Li-ion battery for the Asus Eee PC 901, 904, 904HD, and 1000 series netbooks. It replaces OEM part numbers AL23-901, AL24-1000, AP23-901, and 870AAQ159571. If your original cell holds no charge or the system won't run off battery at all, this is the direct cell swap.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eEee PC 901 \/ 904 \/ 1000 platform fit:\u003c\/strong\u003e\n    These models share the same 7.4V two-cell Li-ion architecture, identical connector pinout, and compatible BMS handshake protocol — which is why one cell covers all of them. Swapping between any of these models uses the same physical latch and charge circuit.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell on an Eee PC 901 unit and confirmed the BMS communicates correctly with the BIOS — charge current ramps normally, the cell reports capacity data, and no error flags tripped at any point during the charge-discharge cycle.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eFirst-cycle calibration on the Eee PC:\u003c\/strong\u003e\n    After installing, run one full discharge down to hibernate-cutoff, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that typically appears after every cell swap on these netbooks.\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 after swapping cells on the Eee PC 901\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe Eee PC BIOS reads health data from EEPROM registers built into the battery's BMS, not from live voltage alone. When a new cell arrives with factory-default EEPROM values, the BIOS compares them against calibration data from the old cell and flags a mismatch as poor health. This is not a defective cell — it's a calibration state. Run one full discharge-to-hibernate then a full uninterrupted charge, and the BIOS learn cycle overwrites the stale reference data with accurate figures from the new cell.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eEee PC shutting down at 20–30% battery shown on screen\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe fuel gauge IC inside the battery calculates remaining charge based on a voltage-to-capacity curve calibrated to the previous cell's chemistry. After a cell swap, that curve is misaligned — the gauge reads 25% while the actual cell voltage has already hit the low-voltage cutoff. Under combined CPU and display load, voltage drops faster than the gauge tracks, and the BMS cuts power before the OS can write a hibernate file. Run two full discharge-to-charge cycles to force the fuel gauge IC to recalibrate against the new cell. After two cycles, the shutoff should align with the display — typically below 5% at around 6.8V under load.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43410853953626,"sku":"BWCS-AUA9NT-1","price":73.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43410853986394,"sku":"BWCS-AUA9NT-2","price":86.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43410854019162,"sku":"BWCS-AUA9NT-3","price":95.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-AUA9NT-1.webp?v=1779581357","url":"https:\/\/batteryweb.com\/products\/asus-eee-pc-901-replacement-battery-74v-6600mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}