If you want to buy solar panels, you most likely want to connect them to the grid. But there are some homeowners and others who want to be or need to be off the grid. There are the folks who have a cabin in the mountains and there is no grid anywhere close by. There are the farmers in Northern California who are growing, well, let’s just say they don’t want anyone to know how much electricity they are using. There may also be some homeowners who are on the grid but want a battery back-up system for emergencies or natural disasters. For these solar energy users, getting the right home solar panels is the easy part. The critical component of their off grid solar energy system is the solar battery. Choosing the correct solar batteries and understanding how to maintain and take care of them can be a challenge. In a recent series of learning articles, we have tried to demystify solar batteries.