Our brand new replacement HP 0A04 batteries are produced under the highest industry standard and made with Grade-A battery cell(Panasonic), 100% compatible Original Manufacturer Specifications. Please ensure your old battery model is "HP OA04",not "HP LA04". Since "HP OA04" and "HP LA04" batteries are very similar, but not the same battery.
Below are list of compatible HP Laptop Model that fits with the HP 0A04 Battery
Pavilion 14 Series
Pavilion 15 Series
Before using the new replacement HP 0A04 battery for the first time, make sure that the battery is fully charged