I have a hp pavilion dv6-3040us Entertainment Notebook. The battery wasn't holding a charge anymore so I used it plugged in. It would charge but die if unplugged with 5 mins.
I ordered a replacement from the partstore.com thru Best Buy. The rep used the suggested replacement hp spare part number from the back of my original battery 593554-001. The original has the date 2010/06 the replacement has 2015/10.
I put the new battery in and am using the laptop now plugged in but the power has a red x and says No Battery Detected and isn't charging.