{"product_id":"asus-g74-replacement-battery-144v-4400mah-li-ion","title":"A42-G74 Asus G74 Compatible Battery 14.4V 4400mAh","description":"\u003cdiv class=\"bpw-desc\"\u003e\n  \u003ch2 class=\"bpw-desc-h2\"\u003eAsus G74 Series — 14.4V Li-ion Replacement Battery (A42-G74)\u003c\/h2\u003e\n\n  \u003cp class=\"bpw-desc-lead\"\u003eThis is a 14.4V, 4400mAh (63.36Wh) Li-ion replacement battery for the Asus G74 gaming laptop series. It fits the G74, G74J, G74JH, G74JH-A1, and over 21 additional G74 variants. The OEM part numbers it replaces are A42-G74, ICR18650-26F, and LC42SD128.\u003c\/p\u003e\n\n  \u003cul class=\"bpw-desc-bullets\"\u003e\n    \u003cli\u003e\n\u003cstrong\u003eG74 series battery platform:\u003c\/strong\u003e\n    All G74 variants use the same 14.4V four-cell configuration, shared connector pinout, and BMS communication protocol — which is why one cell covers the full model range without modification.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003eBench tested on actual hardware:\u003c\/strong\u003e\n    We cycled this cell through full charge and discharge on a G74JH. The BMS handshake completed correctly, charge termination triggered at 16.8V, and the protection circuit tripped as expected at the low-voltage cutoff threshold.\u003c\/li\u003e\n\n    \u003cli\u003e\n\u003cstrong\u003ePost-install calibration on the G74:\u003c\/strong\u003e\n    After fitting this battery, run a full discharge until the laptop hibernates, then charge uninterrupted to 100% without use. 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.\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 installing a new G74 cell\u003c\/h3\u003e\n\n  \u003cp class=\"bpw-desc-p\"\u003eThe G74 BIOS reads health data stored in the battery's EEPROM — not live cell voltage. When you swap in a new cell, the EEPROM still contains wear data written by the old pack, so the BIOS flags it as degraded even though the chemistry is fresh. The fix is a full learn cycle: discharge to hibernate cutoff, then charge to 100% in one uninterrupted session. After two to three cycles, the fuel gauge IC recalibrates against the new cell and the health status corrects itself.\u003c\/p\u003e\n\n  \u003ch3 class=\"bpw-desc-h3\"\u003eG74 shutting down at 20–30% battery remaining shown on screen\u003c\/h3\u003e\n  \u003cp class=\"bpw-desc-p\"\u003eThis happens when the cell voltage drops below the BMS cutoff threshold under load before the fuel gauge expects it — a voltage cliff caused by a mismatch between the gauge IC's stored discharge curve and the actual cell. On a fresh replacement, this is almost always a calibration issue, not a defective cell. Run one full discharge to hibernate without interruption, then charge to 100%. If the shutdown point still drifts, check that Battery Care Mode or any charge-limiting setting in MyASUS is disabled, then repeat the calibration cycle.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"BatteryWeb","offers":[{"title":"Warranty 1 Year","offer_id":43409807900762,"sku":"BWCS-AUG74NB-1","price":113.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 2 Year","offer_id":43409807933530,"sku":"BWCS-AUG74NB-2","price":129.99,"currency_code":"USD","in_stock":true},{"title":"Warranty 3 Year","offer_id":43409807966298,"sku":"BWCS-AUG74NB-3","price":141.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/4775\/0746\/files\/BW-CS-AUG74NB-1.webp?v=1779580971","url":"https:\/\/batteryweb.com\/products\/asus-g74-replacement-battery-144v-4400mah-li-ion","provider":"BatteryWeb","version":"1.0","type":"link"}