There are 2 batteries with the same battery part number for the Asus UX581 family of laptops. (Yes we think this is crazy too!). The Asus C42N1846 battery was made as a 62 Whr and a 71 Whr capacity. The physical dimensions of these two batteries is identical. The 71 Whr battery is currently unavailable.
You can find the standard capacity battery for the Asus UX581 here: C42N1846 Standard Capacity Battery
This Asus C42N1846 battery is rated 15.4 volts and 71 Whr and will normally last 5-7 hours on a full charge. This Asus C42N1846 battery is compatible with the Asus Zenbook UX581 series models and the Asus C42N1846 battery part number. Additional compatible models and battery part numbers are listed below.
This Asus C42N1846 battery is 100%
compatible with the original battery specifications and is individually tested and backed by a 2 Year warranty.
