Victron Energy BlueSolar MPPT Solar Charge Controller - Charge Controllers for Solar Panels - 100V, 20 amp, 48-Volt

Really nice an sturdy an good weight

This controller almost seems to pull energy from clouds. I tried two Tracer Series MPPT controllers (10A RN and 20A BN series). They are good, but compared to this controller they are slow catching up with the rapidly changing cloud conditions in the Pacific North West near the Canadian border.Quick rundown on likes:- It rapidly finds the mpp, and seems to build local profiles to swap back to in rapidly changing conditions (from direct sun to dark rain and in the middle).- In a side by side test, this controller reliably harvests at least +10% more energy from my Lensun 80W 12V panels than either of my Tracer controllers.- It has a built in battery charging profiles you can select by dial - including one for LiFePO4 batteries.- The documentaiton is clear and in English.- The firmware upgrades installed quickly and flawlessly.Additional things that put this controller way over the top for me:- Victron ToolKit app for the complete listing of blink codes to let you know what program the controller is running on. The information is in the manual, but the animated app gave me great peace of mind to know I wasn't about to do damage to my LFP battery bank. (The setting dial has no indication of what setting it's turned to, so blink codes are the only way to know for sure.) It was handy to have the cable calculator to confirm wire sizes, run lengths and voltage loss.- The BlueTooth dongle. Not required since the lights on the controller clearly tell you if you're in blulk, absorption, or float mode. However if you're a freak/geek like me and want to see settings in detail, have peace of mind about your battery bank while the controller is in action, and monitor performance? It's well worth the price of admission.

Excellent solar power charger. Easy to hook up and have been using without any trouble

Victron needs a better way to connect the dongle. Dongle connector would be better if bigger and better mechanically attached.

No much to say, is victron !! Works fantastic easy to program, also I like the victron app.

Go quality unit for the price.

Its a victron. Of course its going to be good.

This device comes without a remote or Bluetooth for monitoring. When I connected it to my system with 3 - 400 watt panels in parallel, it got very hot. I attempted to very the sizing on the Victron website, but they needed the brand of panels and these were not listed. I could only find Victron panels and the wizard was difficult to use. Apparently it only works with Victron panels.