love the features options. I use it camping for a CPAP machine. works all night, for 1 night, then needs a recharge. 105° camping, the solar panels out in sun 8 hours does NOT FULLY recharge tge battery. That's it's weakness, solar panels. friend had different model, same issue.. input was 72 on panels, it's 165 on AC charger. It was good for 2 days of 6 day trip. solar charging only got it re-charged to 20%, 60% at highest re-charge. It's mych lighter than the car battery, / power inverter I was using, and has a easy carry handle. It must stayvout of direct sun, so that presented a solar charging issue. ( I covered the battery with the solar panels.) just wished the solar panels would re-fill it 100% in 6 hrs or less. well we couldnt use it for daytime fan use. had to keep it dedicated to evening cpap use. battery, size, weight, use , electric recharger fine, the Solar panels are just not adequate enough.