Victron Energy BlueSolar MPPT Solar Charge Controller - Charge Controllers for Solar Panels - 75V, 10 amp, 12/24-Volt

This is an excellent Solar Charge Controller, but to configure it, you need to also buy the separate Bluetooth adapter. Once I had both in hand, I set them up to charge my RV's house battery with an older pair of 12-volt solar panels, wired in parallel. Using the Victron app, I discovered the panel's output voltage was not high enough to charge the batteries, even though the controller's "Bulk" LED was lit on the controller (the controller requires the charging source voltage exceed the battery voltage by at least 5 volts, and in my test case both voltages were about 12.5 volts). After re-wiring the panels in series, I was able to see actual charging happening as the panel voltage exceeded the battery voltage by more than the threshold required (the displayed panel voltage was in excess of 20 volts). After a few hours, I observed the controller's LEDs transitioning from Bulk to Absorption to Float. It was very satisfying seeing the MPPT function at work as the input voltage and amperage were adjusted to supply optimum charge voltage and current to the battery. There is some confusion as to whether this controller has built-in Bluetooth and in fact it does not. Having to buy an additional Biuetooth adapter is annoying to some who are familiar with Victron's other range of devices that have it built in (and I was one of the annoyed people). The aggravation is intensified once it's understood that only a couple of parameters can be controlled except using Bluetooth and the Victon app. Some of the competition also sells their Bluetooth dongles as an extra cost device, for example, the Renogy Rover Charge Controller (I know because I own one). In the case of the Rover, all functions can be configured on the unit using the buttons and seeing what is happening on the built-in LCD display. Configuring by way of the buttons is a bit tedious, though. Having the Bluetooth not built in is a security advantage in that once configuration is complete and the Bluetooth dongle is removed, no unauthorized changes can be make to the setup. Also, the dongle can be used for any number of similar devices. The unit is compact in size and has no user interface, except through the app. It seems well built with an attractive Victron-specific industrial design. I do question its lack of a heat sink on its backside; time will tell if that's a liability. By skipping that and removing the Bluetooth function from the controller, Victron is able to sell this device at a reasonable price. All in all, I'm very happy with my purchase.

This is a solid charge controller—I now own three of them. I use one in an off-grid camper with solar panels and another to maintain battery levels on an off-grid generator. The unit is simple to wire, with clear LED indicators showing charging status. It feels well-built and durable, with no issues so far. Great value for basic off-grid power setups.

If you search online there are several ways to connect these victron devices to home assistant using a cheap esp device. Once your system is big enough to need a cervo GX their mppt control seems great. For now since this is my only device this working well, able to see so much historical data.

Works fine, but if you're here, get the next one up. It's worth the extra money. It's a better unit and comes with built-in bluetooth compatibility (to hook to your phone.) I was a cheapskate and ended up paying more when I realized I needed bluetooth for monitoring. That said, this unit works perfectly well with my 18v system, as well as my former 12v system.

My old controller quit working and I found this one, thinking it was identical to the other one. Install it and checked for function, all fine, solar working like it used to. Tried bluetooth connection, like my old one and got nothing. That's when I found out that this particular one doesn't have that feature. Old one did. Oh well, it's Installed and working so I'm going to leave it be. Look carefully to make sure the one you want has the bluetooth connectivity feature if that's what you're looking for. Otherwise, just use this one, Victron stuff is top notch.

Bargain price for quality controller.

This is my first foray into the MPPT solar world, and it was a great start without compromising quality, or having enourmous expense up front. I've had this controller for about a year now, and I'm quite happy with it's performance. It has certainly made a large difference in the amount of energy I'm able to harvest from my tiny 30W panel, especially at lower charge voltages. The unit is built reasonably solidly, can't say I have any real complaints about it.

Victron sets the standard for quality and performance in the solar and marine automation market. Good integration with other victron products using an additional cable (would be nice to use native Bluetooth though…not possible I don’t think). For a clean installation, consider crimping ferrules over your wires — the terminals are close together.

Sehr guter Laderegler. Macht genau das was er soll.

Have tried a few other types of controllers for solar charging to caravan and after a bit of faffing about and not gaining sufficient charge to off grid sites went for one of these. There are different variations to match your needs but these bad boys rinse every particle of energy being produced and tuck it into your battery for later use. The Bluetooth has its benefits and give you history of charge/solar panel captivation and +- battery charge levels. Its a bit of overkill but did buy a second for a spring project for the shed.

Funciona bem sem falhar uma única vez em 1 ano.

Ho acquistato il regolatore per poter usare un pannello solare amorfo che ha una tensione di uscita che arriva a 70 V, quindi incompatibile con i comuni regolatori PWM economici. Rispetto a questi ultimi è all'apparenza molto più solido (pesa almeno il doppio) e, si spera, anche più affidabile e duraturo. Il collegamento è semplice e standard per questo tipo di dispositivi, le istruzioni sono chiare e ben scritte, anche se non in italiano. Consigliato se si vogliono usare pannelli solari amorfi, visto che da varie ricerche in rete è l'unico modello che ho trovato che li supporta. PRO: Molto solido all'apparenza, supporta una tensione in ingresso fino a 75 V. CONTRO: Istruzioni in 6 lingue, ma non in italiano.

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