Victron Energy BlueSolar MPPT Solar Charge Controller - Charge Controllers for Solar Panels - 100V, 15 amp, 12/24-Volt

Very nice unit but I didn’t know it was that small and I figured it would not meet my needs so I had to return it for it bigger brother 150/70 unit. I see reviews on YouTube and I came to realize this unit would be too small for my project and I needed a larger unit with more amperage. I will update when I get my new unit.

Connected to both 12V nominal panel and a 48V panel and they both worked great. MPPT charge controllers have really come down in price over the years, and victron is a somewhat respected name.This is just an important heads up and the true purpose of my review. This model does not include integrated Bluetooth technology. For connectivity you have to buy a dongle, currently around $40 to connect, or just buy the Bluetooth model of this unit for only an additional $15.00. If you don't want or need connectivity, fine- buy this one and save a few bucks. But I love the information that the Bluetooth connectivity will give you and in my mind it's worth the extra 15.00. In a portable setup it will allow you to position your panels to optimal angles and see incoming watts, as well as the state of the charge of the battery. You can also easily make adjustments to the charging profile if desired.

As many have remarked, the terminals could be better. Otherwise an excellent contoller.

Bought this after several YouTube and Amazon reviews and very glad I did. My other MVP controller failed so It needed replacement. I made a system upgrade to lithium Life-po 4 batteries also and added new floor panels along with my roof ones. At first it didn't work so I contracted Victron support. They spent about an hour on the phone with me going through various tests until we found the likely source of the problem - the 300 amp fuse unit. I replace that and it worked like a dream and has been going ever since. The Bluetooth is so handy and the size of the unit is so compact compared with other behemoth controllers.

Not quite sure what the point of selling a controller that can't be configured without some bluetooth/usb device that cost almost as much as the controller itself. Just put a USB port on it if it needs to be configured. Or better yet, a couple of buttons on the box. Imagine walking up to a site that has one of these but there's no way to connect to it.

Good quality

Does a good job once it starts charging. My other controllers starts charging with less solar.

I bought several of these, and my one big complaint,The screw holes for the wire and especially the opening to access the screw with a screwdriver is TO SMALL