Victron EnergyBlueSolar MPPT 100V 30 amp 12/24-Volt Solar Charge Controller

I like that the connection process is very simple, and the instructions for the device are very clear. BE AWARE that you MUST connect the Bluetooth dongle (sold separately) in order to use the VictronConnect app for your phone. You can connect solar panels in series, up to the max input voltage of 100V. Higher voltages produce more output Amps and Watts at the battery output. Series-wired panels will output the Amps of ONE panel at the SUM of their output voltage. You can connect sets of panels in parallel to get more output current (and Wattage) but in parallel, the Amps add up, so don't overdo it. Aim for about 20-25 Amps max, to avoid overloading the device. I'm running this with 3 pairs of 100W panels in parallel and it works perfectly. for charging 2 or more 100Ah LiFePO4 batteries.

Easy connect. High voltage input so lower panel current and smaller wires. MPPT charge control. Well made.

This Victron MPPT handles the wiring better for thicker wiring sizes. Performance wise its excellent.

This is such a vast upgrade over my Renogy PWM controller. Excellent fit and finish - quality hardware & screw lugs designed for 10 gauge wire (maybe #8). 5 year warranty. Clearly Victron and the Netherlands takes solar energy seriously. Additionally, this controller makes far better use of power than the Renogy PWM. See screenshot for sample midwest "summer" power harvest.I only have a 400W (theoretical), fixed position array. I run our TV, DVD player, kitchen lights, basement lights, sump pump, and electric yard tool charger. (using powerbright 3000W modified sinewave inverter) This purchase has me excited about expanding my array and system 2x or more...I do recommend the Victron VE. Direct Bluetooth Dongle for a more comprehensive graphical data readout to your Android or iphone. See sample smartphone screenshot of the VictronConnect app. Nice to see PV array voltage current & power - as well as battery voltage & current. Additionally - the app tracks a 30 day history for you. (see screenshot)I feel im just getting started with solar - but the controller quality and price point - give me hope for investing more in this quiet clean power source.

This product failed after almost 5 months of use. It seemed to work well until then. Failure was evident in recognizing solar panel input. A backup MPPT I had was then installed, and solar charging was returned. I asked Amazon for a replacement, but they directed me to Victron. Victron's response was for me to contact Amazon for a solution. At this point, I don't know where I stand - other than being out about $250. I now see reviews on YouTube indicating this MPPT has been a problem. I thought the "quality and service" of Victron, eventhough their cost is higher than others, would be the best product to use. Now it appears that less expensive versions of similar hardware are a better choice. I do not recommend Victron's customer support.

Goes into fault too often needing reset. Loses blue tooth connection consistently. Had dead batteries on multiple occasions with this device.

Very happy with this controller, saw some bad reviews for it and Amazon even said it was returned frequently. I think it works perfectly. Love the Bluetooth, so I can tell what the system is doing. I new that I needed a new solar panel just from looking at the app. I can only think that people don't know how to use it.

I bought this to replace another brand which made a mockery of its own MPPT claim: I could barely get 200 watts to my batteries from a 600 watt array of six panels for a 24 volt system. Then that "controller" failed entirely after about four months. Check my other reviews if you want to see what's up with that one. Learn from my mistakes.There are no real features with this unit, but it does a real good job at what it's supposed to do: get you maximum power to recharge your array well-regulated without burning up your equipment with excessively high voltages. With this unit on the otherwise same setup, I have seen up to 515 watts in late April not anywhere near the highest sun of the year. It also does remarkably well in cloudy but bright skies. I don't have the Bluetooth model and don't care really since my batteries do tell me what's going on via their Blueteeth connections.I downloaded the lengthy owner's manual and read it well because it was not intuitive at all how to set up the controller or to decipher the status lights. Take the time and do this BEFORE just hooking it in and using so you get it right for your system. I had to be sure I set the switches properly for my LiFePO4 batteries and system voltage limits, etc., and not fry thousands of dollars of batteries by not being careful. My overall rating is tempered only by the fact this controller's only been in service for five months.