What are those? 125 Amp Battery. I went the other route. Inverter/Charger (AIMS 1250) and couple of 100ah Batteries. Goes 12 hours. Plus I can get to the batteries and change them out. Tons cheaper and more power too. Upgrading next year to couple of 200ah Batteries. House has 7kw Generator and I have Sportsman 1k to run stove if I need more than 12 hours.
