BMV-712

Newly installed: It’s clear that someone at this company understands human centered design because there is a lot of thought that has gone into just about every aspect of this device. The shunt was easy to install, and has very clear markings on which side to connect. I was able to put it into a large battery box (see photo). The voltage tap they provide has an actual Ferule crimped on it for inserting into the spring connector on the shunt. This is a detail I have only seen on professional factory equipment for handling vibration connections. It’s exactly the right way to do it. Bravo for this. The display module itself is pretty tight and well designed. The buttons are intuitive and function as you would think they do. My only complaint is that trying to create readable text from 7 segment elements is hard to read. It took me a while to figure out what was being displayed. It would be better with a dot matrix style display. But I get it, cost and all that. The app almost makes up for this, except for the purist in me that doesn’t want a phone when I’m camping. The app is really where this device shines. As a hater of Bluetooth, I was surprised how easy the initial connection was. It basically just connected and worked. The app is quite frankly great in its simplicity. I am particularly fond of how clear and concise the presented information is. It definitely passes the 5 second test for human dashboard consumption. Marvelous. Also, I can actually connect to the device from my house, if I need too. Which is just amazing. Other items of note. The included square bezel is great. The quality of the cabling is good. There is a connector on the back for adding their other display. This company released the protocol documentation as well which is a huge plus. I’ll update the review when I use it more, but this thing is a solid 5 stars for me. SUPER happy to see a well thought out, and well executed device like this. As an embedded software engineer myself this sets the bar for me. Totally worth it.

My previous battery monitor decided to quit so I took the chance and purchased the BMV-712 even though it was a bit more expensive. I'm so glad I did! This unit behaves wonderfully, just like the description. I currently have it on a 5kVA solar system with a 600Ah - 48v battery bank. I also purchased the optional temperature sensor: https://www.amazon.com/gp/product/B076MVPSMQ/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1 I use the smartphone app literally 20+ times a day to check on the SOC of my battery bank, temperature, etc.. Aside from all the wonderfulness there are a couple quirks that you might like to know about before you purchase this. - One - the unit connects to your smartphone via Bluetooth. I have been impressed with the range, but the connecting time can be longer than I would expect. It takes on average 10-15 seconds to fully connect to the device. The closer you are to it the faster it connects. If I'm standing right next to it, 5 seconds, but if I'm next to it, I'll just look at the unit itself. Also, is has to reconnect if your screen shuts off. I have my screen-off timer at 30s, so sometimes that can be annoying. - Two* - the panel unit has +/- realtime power that can be displayed, but this is missing in the app, you can see realtime voltage and current, but it doesn't do the math for you in the app. *update* This was feature was added in a recent update of the app, so now it shows instantaneous power as well. - Three - The unit has a bunch of historical data you can view, but in my opinion it doesn't keep track of cycles properly. According to the current firmware version the battery needs to drop below 65% before a cycle has been counted. For example, on average our batteries discharge to about 80% remaining capacity everyday. Somedays more, some less. I've had this installed for over a month and it currently shows 3 "total charge cycles". - Four - It can only connect to one bluetooth device at a time, but even if the phone/tablet/computer is not actively displaying anything (screen off, etc.) it is still somehow "connected" and prevents another device from seeing it. This drove me crazy for a hour one day when I thought it's bluetooth had quit working. Turns out my computer was still "connected" because I had the app open even after the computer's display was sleeping. I even powered off the BMV-712 and it still was locked to my computer when it restarted. I had to quit the app on my computer before it would show on my phone. But what's weird is it would still need to "reconnect" and go through its procedure when waking up your computer/phone, etc. As I understand it, the programmers are working on a revision of the current firmware that will add in/fix some of these issues. The tech support is great, I inquired about the charge cycle issue and they replied within 10min. Very impressed. All in all, I still rate it 5 stars because it has a lot of very useful features and it just works. Easy setup/install. As long as you are aware/okay with the minor quirks, I think you'll love this little meter.

Normal volt meters are not very useful in a camper because you have to disconnect the battery to and let it rest for an hour or so to get an accurate volt reading to see how much the battery is discharged. Not very practical. This product is an amp meter and actually measures how much energy is going in and out of the battery. After setting it up you tell it how many aH you batteries hold and once they are charged it will then measure how much energy leaves and comes back in to the battery. While it gives you the numbers a simple percentage display shows you much of what you need to know. Its also accurate enough that you can turn things on and off and see how many amps they pull which can help to troubleshoot issues or just giving you a good idea how much that light or furnace actually uses from your batteries. Installation is fairly easy. The shunt needs to go near your batteries and goes between the negative terminal on the battery and all negative cables from the camper. Everything has to run through the shunt to get an accurate reading. There is also a small red cable to run from the shunt to the positive terminal of the battery. The small meter gets installed inside somewhere and there is a small phone type cable which runs from the shunt to the meter. The shunt is the only negative thing of the whole kit. There are some electronics on it so it needs to stay try. For most campers the batteries are outside in a battery box which may not be 100% water proof. I made it work but I'd like to see a version of the shunt which is more waterproof itself. Also the shunt is rated for 500 amps so the terminals on it are huge. My battery cables were not as big so I had to open them up a bit to fit on the shunt terminals. I don't need anywhere near 500a so it would have been nice to have a smaller shunt with battery sized terminals. Just noting this for other customers but still love the product. There is also the Bluetooth app which works extremely well to give you much more control and details on whats happening with your electrical system. If you always camp plugged in to shore power this might not be worth it but if you dry camp this is a must have. Highly recommend this product.

I had 3. Now I have 2. They said don't use it outdoors so I stuck it under the hood on a golf cart. The humidity killed it. I'm not going to fault the manufacturer for my off label attempt. This is just a heads up. The oldest one has been feeding me accurate information about my batteries for 5 years. I would hate to be without it.

Victon products just work..... They can be difficult to set up because they have so many settings but they work great. No other companies product work as well as Victrons. Spend the extra money, you will never be sorry

I have tried several cheaper battery monitors, but they all lack the features to accurately track a battery's state-of-charge. I decided to try overpriced Victron units because of the excellent reviews. These stand out because they are relatively easy to set up and have all the parameters needed to accommodate for losses in the charging and discharging of the battery. Positives: 1) Accurate, once properly programmed. 2) Good Bluetooth range. The BMV-712 unit has the Bluetooth circuit and tracking logic in the meter itself which can be located a good distance from the shunt. They supply a very long cable which allowed me to locate the meter on the other side of the garage, close enough to the living area to provide a good signal in my office a couple of rooms away. 3) Decent, but limited App. Negatives: 1) Expensive. Victron products are way overpriced. 2) You can view the real-time and historical (trends) data in the App, but there is no option to download the data. Seems like it would be a very simple feature to allow downloading a CSV file. 3) The display is small, cheap plastic and not very visible. Since I got it for the Bluetooth, this is not a real problem for me, but it might be for other applications. 4) Can't access through a PC, so you are limited to your phone.

Easy installation and gives us all he readings we need to keep our system running slogans safely. Using it with 2 MPPT’s a 30 and a 50. App is easy to use to track status.

Quality product. Easy to install of you have some mechanical ability and basic knowledge on low voltage electrical.

Victron nailed it with this one. I use it to monitor a LiFePO4 bank in an off-grid setup and the readings are incredibly accurate. The Bluetooth app is intuitive and offers deep insights like voltage history, amp draw, SOC, and more. Setup requires a little patience (especially shunt placement), but once it’s running, it’s a game changer. You’ll always know your battery’s real status.

Foolproof robust Battery condition readout with Bluetooth functionalities. You can not go wrong . In my case for Lifepo4 Battery bank 4x paralel 12V DIY Camper.

Das ist ja ein cooles Teil. Präzise kann man hier den Ladezustand des Akkus beobachten, entweder per Display oder App. Einzige Kritik: es sollte besser beschrieben werden, wie die vielen Parameter für den verwendeten Akku-Typ einzustellen sind. Ich kenne mich doch nicht aus- welchen Wert für Schweifstrom oder Peukert-Exponent. Da gibt die Anleitung nicht viel her, das Internet hilft dann aber. Wenn es einmal eingestellt ist, liefert es beste Ergebnisse.

Works with my mppt solar controller via single cable But you need to buy this VE direct cable separately Gives you data and fine tuning options for charging via solar controller Latest display unit as well Overall it's a great buy

Precies wat ik nodig had, voor de beste prijs die ik kon vinden.