Seems ok so far
Using this was like falling off a log. I use it to keep up the batteries in the RV. The Mc4 fittings make it easy to plug it in and unplug as necessary. The jumper cable type clamp line set that came with it may come in handy some day so didn't throw them away. Because it has the built in charge controller, I don't have to worry about it over charging my batteries. Very lightweight and when folded, fits easily into an RV storage compartment so I can also keep the batteries up while camping. Note that 100 watts is not going to actually run anything in the RV, so it is just a battery maintainer thing. Still, the idea of camping for a week and going to fire up the RV to go home only to find it is dead is not a pleasant thought, so it fills a need. A little overpriced on a per watt basis, because one can easily buy a 310 watt panel for less money, if willing to convert voltage, as the 310 watter is 24 volts.
Verified purchase: YesCondition: New