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

Really nice an sturdy an good weight

Go quality unit for the price.

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

Product was great Getting it was not received a notice that it was damaged in transit waited to see if they were going to get another one on its way, then I received a notification that I would receive credit and that I had to reorder the ItemI was a small business owner for a number of years, this was the first time I had to reorder a damaged in transit item.I have no complaints about the product it served me very well all of last summer

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

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.

I purchased this controller to charge a bank of marine batteries. I have $1,500 worth of batteries purchased new from Walmart. The system has been correctly wired as I'm a very experienced electronics technician.I set the charge controller to the default setting as indicated by the manual for Flooded Marine batteries and as shown in the attached photo. It clearly states that flooded marine batteries are charged with this setting.In addition to this charge controller, I purchased the Battery Voltage Monitor and the Battery Bank Balancer. All were connected properly. I have checked the batteries for proper water levels on a monthly basis and have had no issues. They are kept in a clean, relatively cool place in my garage.About 3 weeks ago, the balancer started to go into an alarm condition. The BVM unit showed an increasing difference between the lower and upper banks of my 24V system.Upon having the alarm trip, I disconnected all of the batteries and then began conducting tests. As it turned out, the charger was NOT charging the bank to the equalization charge of 32V. I have been back and forth with Victron for many issues related to their product. I have performed software updates. I now have a battery bank that is completely destroyed.Victron says that it is all MY fault for the following reasons:1. I used the incorrect settings on the charger.2. I did not have discussions with my "dealer" - the seller on this page.I have not been able to get an address or telephone number of this "dealer."I had hoped that this equipment would be better than the Chinese units on the market and better supported. Sadly, this is not the case. Victron offers NOTHING to help me with the destroyed batteries.I will be taking this up with small claims court - if possible.