As with most batteries, there is not too much care that you will need to give to the battery that you will be using to power your heated vest. Now, with that being said, there is an important practice that you need to implement to ensure optimal performance. Before you use the vest, fully charge the battery beforehand. And, when you go to store the battery, fully charge it and then do so once every three months afterward. Also, store the battery in a dry and cool location.