{"product_id":"emachines-d525-replacement-battery-111v-4400mah-li-ion","title":"eMachines D525 Replacement Battery 11.1V 4400mAh AS07A32","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eeMachines D525 \/ D725 — 11.1V Li-ion Replacement Battery (AS07A32)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis 11.1V 4400mAh Li-ion battery replaces the original cell in the eMachines D525 and D725 notebooks. It slots directly into either model and restores portable operation when the factory battery no longer holds voltage. Rated at 48.84Wh, it matches the original power spec for both machines.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eD525 and D725 platform fit:\u003c\/strong\u003e\n    Both models share the same battery bay dimensions, connector pinout, and BMS handshake protocol — that's why a single cell covers the full pair. The same OEM part numbers, including AS07A51, AS07A72, and BT.00607.012, were issued across this chassis generation.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We ran the cell through charge and discharge cycles on the D525 platform. The BMS negotiated correctly, the fuel gauge IC registered the new cell, and charge terminated cleanly at full voltage without false cutoff events.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install calibration cycle:\u003c\/strong\u003e\n    After fitting this battery, run one full discharge to hibernate cutoff, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health or low-capacity warning that appears after any 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 poor battery health immediately after swap on the D525\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThe D525 BIOS reads health data stored in the old cell's EEPROM before it has any reference data for the new one. It flags poor health because it's comparing the new cell against charge history it doesn't have yet. This isn't a fault with the replacement cell — it's a learn cycle gap. Run two full discharge-to-hibernate and uninterrupted-charge cycles and the BIOS will update its health record against actual cell performance.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eLaptop shuts down at 20–30% charge shown on the gauge\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the fuel gauge IC hasn't calibrated against the new cell's actual voltage curve yet. The gauge still references the old cell's degraded profile, so it misreads remaining capacity and the system shuts down before the battery is truly empty. Under full CPU and display load, voltage sag accelerates this mismatch. A full discharge to hibernate cutoff followed by a clean charge to 100% gives the fuel gauge IC the data it needs to track the new cell accurately — target at least 12.0V open-circuit before the first hibernate cutoff.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43410853593178,"sku":"BWCS-AC4310NB-1","price":68.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43410853625946,"sku":"BWCS-AC4310NB-2","price":79.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43410853658714,"sku":"BWCS-AC4310NB-3","price":87.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-AC4310NB-1.webp?v=1779581356","url":"https:\/\/batteryweb.com\/products\/emachines-d525-replacement-battery-111v-4400mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}