Walmart sells the EverStart Maxx Group Size 29 Marine batteries for $100. These are 12 volt batteries with an amp hour rating of 114. Apparently they are made by Johnson Controls and come with a two year replacement warranty from Walmart. Do you think 2 or 3 of these would be good for house batteries with solar panels?
Here is the link to it at Walmart: http://tinyurl.com/bb2utzu
Thank you