Laptop batteries

My husband uses his laptop most of the time. He draw cabinets on his laptop and he takes it everywhere he go even at the hospital lol. He even have an extra battery on his laptop to make sure he can work on it.

Anyway, if you use your laptop most of the time and work on it all the time well, an extra battery would really help just in case. There are lots of hp batteries, laptop batteries you can get online.