In 2010 I purchased a Tripp-Lite inverter, an RV1250ULHW. I was more interested in the 3 stage charger function than the inverter, to replace our converter/charger. Well, this year it started giving me problems. When we went away in May, I would plug in at an Rv park and the charger would shut down on overload. After two or three resets it would remain on and eventually come up to full charge (green LED). Eventually, though, it would not power up. After looking for info on their website and not finding any information on this particular model, I sent an email to Tripp-Lite's tech assist dept asking for a schematic and some troubleshooting tips. I was told that they did not furnish schematics. I was also told that, based on the serial number, my unit was 12 years old. Yes, 12 years old, meaning that it was 8 years old when I purchased it! I called the vendor that I bought it from and was told that Tripp-Lite shipped directly to customers, so they had no control of what was shipped. I have asked Tripp-Lite customer service reps about this and was told that they did not see this as an issue. I also asked if they would buy something that was 8 years old and did not get a response.
So, I am just alerting everyone to beware. I am now looking at Magnum, made in the USA inverter/chargers.