# and Type of house batteries

This Lifeline GPL-31XT Group 31 AGM battery is just about the same size - but a lot heavier - than their GPL-27T, but is rated for a much higher 125 amp hours. This is a serious, but still in a compact group size, 12 volt true deep cycle AGM battery and is really the way to go if one could get a good enough deal on it: https://batteryguys.com/products/lifeline-gpl-31xt

Here's a better price for the GPL-31XT: https://www.thesolarbiz.com/lifeline-gpl-31xt-agm-mobile-12volt-125ah.html