If you have an HP laptop you need to check the battery right away, as many have been recalled due to overheating issues that could pose a fire risk and a burn hazard to users.
In the recall HP said "Because these batteries pose a fire and burn hazard, it is extremely important for customers to check whether their batteries are affected, and to cease use of affected batteries immediately. Customers may continue to use their notebook computer without the battery installed, by connecting the notebook to external power."
The recall includes some HP, Compaq, HP ProBook, HP ENVY, Compaq Presario, and HP Pavilion Notebook Computers sold worldwide between March 2013 and August 2015. If your battery is affected you will get a replacement from HP at no cost.
Not all models are effected, though the following are the ones specified in the recall:
HP Compaq: CQ45 (B), CQ58 (B)
HP ENVY: dv6 (G)
HP: 240, 245, 246, 250 G1, 255 G2, 450, 455, 650, 655, 1000 (B), 2000 (B)
HP Pavilion: 14 (S), 15 (S), 17 (S), g4 (S), g6 (S), g7 (S)
HP ProBook: 4440s, 4441s, 4445s, 4446s, 4540s, 4545s 440 G0, 440 G1, 445 G1, 450 G0, 450 G1, 455 G1, 470 G0, 470 G1, 470 G2, 4440s, 4441s, 4445s, 4446s, 4540s, 4545s
The easiest way to check is to use the validation tool on the HP site that enables you to download and perform a check to see if your machine is affected. There is also a way to check them manually if you prefer. You just need the Laptop serial number and battery barcode number. Click here for more information.