Victron EnergySmart BatteryProtect 12/24-Volt 220 amp (Bluetooth)

Great quality and Bluetooth App connectivity, good addition to my Victron DC off grid set up

Just what I needed to protect the AGM leisure battery in my campervan from damaging discharges. Good build quality, easy to fit and Victron App makes set up and calibration easy.

I needed a low voltage cut off for some upgrades to a kids ride on toy I was doing using an 18v battery that needed a low voltage cut off. This works a treat. You are able to set your own cut off voltage very easily via the app that connects via bluetooth so it doesn't matter it's not a 12v or 24v battery that it auto detects (it auto detected the 18v as a 24v and engaged low voltage cut off automatically the first time it was powered on - easily changed in the app though).An expensive solution for a kids toy, but compared to a 12v chineseium low voltage cut off, which would need separate relays to cope with the higher amp load, this is actually not that much more expensive and a darn site easier and neater to install.

Its a bit expensive (nearly the price of a small battery itself) but:Easy to installEasy to bypass if you give yourself an extra 5cm of cable. OK you shouldn't do this but sometimes you just have to...Bluetooth is easy, don't use it much but useful for initial set upHas saved me from running a battery completely flat twice in the last 6 months so has paid for itself already.really good for any situation where you have battery maintained by a float charge

Don’t buy the 60amp version. Too weak.

Great item

I don't often write reviews, but on this occasion feel compelled to do so, after I bought the 200a smart Bluetooth system.I have a solar setup with 2 X 200ah lithium batteries in parallel, with 3 X 100w solar panels feeding them, controlled by a TS-MPPT-45 solar controller.I was surprised to find that when the lithium batteries hit LVC, no solar energy would go into recharging the batteries, and instead, the batteries would simply go to sleep.This device overcomes this problem as I can automatically disconnect the load before the batteries hit LVCThe Vitron Smart Protection system is extremely easy to install, and then set up via your phone. It uses BLE Bluetooth so has a super low energy consumption, and as well as a variety of presets for low voltage disconnect / voltage reconnect you can also use your own custom settings.I highly recommend this to anyone who has a solar / battery setup.

This is designed together with their mppt charge controllers to only work with VICTRON inverters.You would imagine that a company who is so fond of of overpriced add-ons would have developed yet another to address this.