Victron Energy Smart Battery Shunt - Battery Monitor (Bluetooth) - Victron Smart Shunt with Detailed in-app Insights - 6.5V-70V, 500 amp

Easy to install, easy to pair, and does its job perfectly. Not much more to say than it works!

Although this shunt will work as a standalone monitor this is NOT its intended purpose. Victron system devices are meant to work together. When I bought this I was intending to use this as standalone using Bluetooth for monitoring. Like others have said, the Bluetooth is not great. Not only is the range very short but if you stay connected too long there will be frequent Bluetooth connection "losses". This is quoted because it's not just disconnected but when you try to reconnect the shunt will act as if it's still connected which the only remedy is to pull the small power wire.After a bit of learning more about Victron products, which are the best of the best, I've learned the ve.direct port is where all the magic happens. I already have a Victron SmartSolar 150/60Tr and now this shunt. I like to watch it CONSTANTLY and couldn't keep having to pull power on both the SmartSolar and the Shunt just to get it to continue working after Bluetooth fails. Also to note, when you pull the SmartShunt power to power cycle it it will lose it current SOC reading. It will fix itself once you hit Absorb and Float but that's not always helpful if you're already sitting as a low DOD.The missing magic box for monitoring everything, not just locally but also when away, is the CerboGX. This will allow you to connect the SmartSolar and SmartShunt via ve.direct then you can connect the CerboGX to either WIFI, for away monitoring, or connect to it via Bluetooth, for local monitoring, which seems to have a much more stable connection. Fortunately for me I have a Alcatel 4G router with ethernet port, which the CerboGX also has an ethernet port. Now I have the 4G router running off the LiFePO system and connected to the CerboGX so there's never downtime.The next step was setting up an account in the VRM portal which was insanely easy and now have SO much more details and trend graphs to monitor not only real time but MUCH more such as battery curve on discharge, solar voltage, solar amp, total amps used, battery charge cycles....the list is massive and has everything you could possibly want.Yes the CerboGX is a little costly, which caused much hesitation when initially choosing it, but after getting it and fully setting it up it has been WELL worth every single penny.If you're going to make the investment into the amazing Victron ecosystem it's best to do it the right way. You will not be disappointed and will only want to see just how much more amazing it can get....and Victron devices can expand further than your wildest imagination. I can't express enough just how much I initially wanted to go cheap but let me tell you....you will need to buy more components to any system and Victron makes this near dummy proof. Just read the manuals for each device carefully and don't go over any limits they set.That's all I have for you, happy solar harvesting!!My System:-10x Renogy 100w compact with their tilt brackets (5S2P)-Victron SmartSolar 150/60Tr (yes over-paneled to get to peak charge sooner)-Victron SmartShunt 500a-Victron CerboGX-2x Chins 12v300a (2P for 12v system/ gives me options to go 2S for 24v)-12v1200w Giandel (2400w surge for a few seconds)Considering 24v3000w Giandel and all I'd need to upgrade to a 24v systemthen many fuses and circuit breakers throughoutI know my pictures have a wiring mess but this is only due to not knowing what more I was going to add/change in the system. Once I decide if I'm staying 12v or move to 24v, and get the 24v inverter(they're MUCH bigger but all I need for this change) then I will be changing fuses/breakers and bundling all wires to fit my usually OCD/Perfectionist tendencies. And yes that is a raspberry pi screen I'm using for direct monitor from the CerboGX hahaI also included the VRM (Victron Remote Management) views from PC, 2 darker views, and the one from the mobile device app. Thought that might be helpful in understanding the value of the CerboGX and VRM (which a VRM account is free)

Let’s get the only negative mention in this 5-star review of the Victron SmartShunt battery monitor out of the way; the Bluetooth range is less that other devices. However, try to find another shunt meter with Bluetooth. Aside from this characteristic, this is the best meter I have used. Why? Because numerous other meters do not provide usage trend data. The Victron gives the user trend data from 15 seconds to 180 days. You want this meter if it is important to understand the capacity of your batteries over multiple overcast days, and how long it takes to fully recharge after sunny weather returns. Example, monitoring my off-the-grid system using the Victron, I know that my 10kWh battery bank will remain above low voltage with three days of no sunshine. Also, it takes five days of full sun to fully recharge my LiFePO4 batteries. This level of monitoring capability is key to making sure a system is operating as it should. I have other Victron products on use and they all are high quality.

Readability:The Victron app is easy to use - put it on your phone and it will instantly tell you the true SOC of your battery. Accuracy:It's well known that the only truly accurate way to get a true state of charge in a Li battery is with a shunt, and this provides that informationEase of installation:Couldn't be simpler - put it on a short cable going to your batt's neg post and then out to the negative of whatever fused panel situation you have in your rig or boat. The shunt becomes your new negative post - nothing else goes on the actual battery neg, ever.

This is used for a single lithium battery. The battery's BMS appeared to be accurate, but with more testing, it was too erratic on SOC. Reading the manual, the BMS can't detect low discharging and charging. I purchased and installed the Victron shunt so I could get accurate data. The installation was straightforward. If it won't be exposed to high moisture, I prefer this one. The IP65 version has all possibilities of sensor cables potted in. On this one, you only connect what you need and terminate wires to a neat length. I appreciate how much more accurate this is than the BMS. Areas for improvement are the speed the Bluetooth syncs. Opening any other Victron device and the Bluetooth needs to re-sync every time. Distance is also marginal, it should work in a bigger radius like other Bluetooth devices. For the price and simplicity, I am glad to have it for the times when battery data is critical.

As usual, Victron continues to provide exceptional quality, fit, finish and utility.Installation is a simple, straightforward process that requires only one additional short cable of the proper gauge for your setup.The included positive wire and secondary positive (for monitoring a second battery bank or midway point) have built-in fuses.One note - the bolts on this require 5/16" or 3/8" wire lugs on the wires from the negative battery terminal and to connect the load or bus block.The shunt itself is very sturdy, and designed for easy mounting in a small space near your battery.It also networks wirelessly with other Victron Smart controllers and other products over Bluetooth to allow them to share information, via the VictronConnect app.A few minutes of reading is all that's necessary to input the battery information and other parameters via the app, and before you know it you're up and running with detailed information that assists greatly with fine tuning your system.You may, like me, find yourself wondering how you ever got by without this addition to your solar power system. I put it off, questioning whether I really needed this. From now on, I'll have one of these on every system I install!