Victron Energy SmartSolar MPPT Solar Charge Controller (Bluetooth) - Charge Controllers for Solar Panels - 75V, 15 amp, 12/24-Volt

I have to say some kind words so far for this charge controller, in short, this is an amazing product.Early in its use, I have a small outdoor solar array using batteries to power a sprinkler system, sound system, lighting and an outlet using a separate inverter. We live on top of a hill, no trees, no wind blocks and get the worst of the weather constantly. I have been through many MANY MPPT Solar Charge Controllers and was a bit scared to go with a Bluetooth only controlled device.I was quickly impressed with the VictronConnect software, giving a demo device so I could test drive the settings and see exactly what I would get and control. Next up, how hard is it to connect and reconnect once I got physical hardware.... It was literally as easy as the demo equipment. I was able to power on the controller using Solar power OR battery, meaning as long as you have 1 power source it just works. Bluetooth connected instantly, one tap on my Android phone and the PIN on side of the controller and I was done.I did notice that the default for me was 24v when I had a 12v battery connected but that wasn't a big deal, went through set to 12 and was all set.Because I do a lot of work with solar controllers, I wanted to see how accurate and fast this little beast was on the phone app, ran a constant 25w load and the app was within a half second reporting accurately. Variable loads also gave good information, up to this point I was already sold that this was a solid device. The app is just about perfect, gives you Amp and Watt usage which is nice for quick math and efficiency conversion. I also really like that the battery stats show when your load is pulling from solar only or from battery, very clever and easy to read.Pros:Super easy to install, Plug and PlayEasy to configure easy AND expert settingsComplete customization of battery settings and a good number of presetsWas able to configure exact settings for my 12.8v LiFePO4 battery!Feels solid and I have no doubt that it will last in harsh environmentsEasy to mount, Good size fits just about anywhereEasily control load on/off depending on solar inputCons:Cant find any yet but here are some things to noteMine defaulted to 24v, easy change to 12, maybe sensitive batteries and large systems might have connection issuesWould be nice to have a day timer for on/off functions as well as solar input but this is being super pickyIf you are looking for a good MPPT Solar Charge Controller, feature rich and don't mind using your phone and Bluetooth to configure, this is the one you want. Can't comment on longevity thus far but I have no doubts this will last! Will update if anything changes...

Received controller yesterday and installed yesterday. It works as described, very nice. Bluetooth works very nice, the available customizable functions are enough for my needs. For the money and what you get, i will never buy another $20 etc. budget controller again. This one is the 75/10 and i did not know the 75/15 was only a few dollars more or i would have bought that one, why not. I use these as battery maintainers on my autos, big boy toys etc., I have been through allot of $20 budget controller that i have no customizable functions, no more of that. I will buy a few of these i think. If i had to give a negative it would be the Bluetooth range you have to be pretty much right next to it, at least that's what i am finding. I have other Bluetooth devices that i get much farther ranges on.

Wow. Between this and the Chinese fake mppt flooding the platform for half--sometimes a third of the price of this...... Night and day.Works flawlessly. You can manually set the charging parameters and it's very easy to use.My panel is advertised as 100w. Most I've gotten from Chinese pwm disguised as mppt is around 80w. With this beast, I've gotten 110w peak in the second day of usage (both days were cloudy and rainy here in Florida). Great device

The Victron Energy SmartSolar MPPT 75/15 is a top-tier charge controller that maximizes solar panel efficiency while offering smart monitoring through built-in Bluetooth. It’s a game-changer for anyone running a 12V or 24V solar setup, whether for an RV, boat, or off-grid system.Why This Controller Stands Out:🔹 MPPT Efficiency – Tracks and adjusts for optimal solar input, squeezing every bit of power from your panels—even in cloudy conditions.🔹 Bluetooth Connectivity – The VictronConnect app lets you monitor and tweak settings from your phone, no extra hardware needed.🔹 Compact & Well-Built – Small footprint but solid construction. Feels durable and is easy to install.🔹 Versatile Voltage Support – Works with both 12V and 24V battery systems, making it adaptable to different setups.🔹 Smart Battery Management – Protects against overcharging, reverse polarity, and overheating, ensuring long-term battery health.Final Verdict:If you want a set-it-and-forget-it solar charge controller with efficient MPPT tracking and modern Bluetooth monitoring, the Victron SmartSolar 75/15 is well worth it. Reliable, easy to use, and great for both beginners and pros.

This thing is solid and the bluetooth is great. I use this in tandem with the Victron Smart Shunt. For the price, this is hard to beat and get a MPPT vs a PMW solar controller. I would buy it again, just in a larger capacity.