Tripp Lite by Eaton 2400W PowerVerter APS 48VDC 120V Inverter/Charger with Auto-Transfer Switching Hardwired UL - 48V DC - 120V AC - Continuous Power:2400W

I have two of these units at my house, I have them connected to a large stack gel batteries. They are back up for the freezer and furnace and a few other things. I have them running in UPS mode and so far I have not had a single problem with either unit. I never can tell when they switch over to battery except for the other lights go out. I really like the 48 volt DC version because they only pull 50 amps at full load but the way I have them set up they take about 18 amps DC as a pair when everything is on to keep things working when the power is out, I am lightly loading them. You never know when you might need to add something. They are very easy to set up the dip switches for different modes which I really like as an option. My only complaint, the charge voltage for gel batteries is about 55 Volts, it keeps the batteries really full but shortens their life considerably. I have an external charger running 53.5 volts, I get years out of the batteries and the run time is not noticeably less and I buy fewer batteries. I do recommend having a good ground at the inverter and surge protection on the AC Mains.

The PowerVerter 2448UL perform after installation as it claims it could