Multifunction LCD Battery Monitor Capacity Meter Voltmeter with Temperature Display Battery Fuel Gauge Indicator (36V)

Don’t buy this. It’s absolutely worthless. I bought this to get an accurate measurement on my solar system battery pack. After 2days of glorious sunshine it’s never moved higher than 91% full. It even flickers up and down a few %.I know it’s not going to be the most accurate measure for this price, but I expected it to be way better than it is.The battery % left is wrong, the voltage is wrong, the only this that is accurate, is the temperature. Bit expensive for a temperature gauge.My advice, and what I will be doing, spend a bit more money.

Only just got some bought the 36v ones as they we're cheaper even though they are all the same so bought some more.Fully programmable upto 24s lithium.The battery guage is programmable so you can set upper and lower limits so I can set that at last 20% to compensate for voltage sag.Nice units best I've seen for a tenner so far had them all.Only little thing is it's got the internal temp probe type not externally mounted. And it's not really very good it works sort of :)

Needed a simple lcd screen to display battery voltage for my campervan conversion. To install, I had to attached eyelet to each end of the wire to make a secure attachment to the battery. After this it was as simple as turning on. Displays battery percentage with a picture and then either voltage or temperature (toggle with a button). Looks good, easy to use

The product works and I tested it with 12 NiMH 1.2v D cells and it was accurate enough to show 15.6 Volts, I then tested 11 D cells and then 10 D cells and it shows accurate changes, The temperature gauge works too and was showing room temperature. I have not tested it when batteries are in operation, when I do, I will give you an update. A nice little gadget for hobbies and professional products. Great for keeping an eye on your batteries so you can switch them off when they run hot and great for gauging when your batteries are going flat. It has many options and one great one is a timer that switches it off so you do not waste energy. It requires low energy at 5mA. It has all the options to switch Battery types and the instructions state clearly, how. You do not need to switch it to NiMH mode, it seems to be the standard mode. It does not state in the product page that they are for NiMH though it does in the instructions. The unit is built for recessed fittings so you can mount it on an enclosure and looks much the same as in the picture.Easy to attach and easy to understand instructions.Nice little gadget.Director, Robert Friend.Angel Technologies UK Ltd.

I use mine to monitor a 12volt solar power system in a remote garage. My system is used to keep motorbikes batteries topped up through the winter. I set it to be on for 30 seconds after hiting the power button and it works a dream even in the middle of the night because it lights up nice and clear. I would have given it 5 stars for Accuracy if it was not for the point is measures 0.1 volt high but I can live with that.

Bought this to try out and keep an eye on my leisure battery levels in a camper conversion. Had it connected up easy enough and seemed easy enough to use. Can't really comment on accuracy as they were not used much before they broke........................Thought the plug on the back looked a little flimsy anyway but okay they didn't cost the earth, carried on using them, and with the slightest, tiniest little pull on the leads the wires came clean out the socket. Not really impressed but serves me right trying to save a little money and buying something cheap.

I have fitted this to my electric scooter and gives me a guide how much battery I have left and the amount of pressure that is put on the batteries.Very bright display and easy to read.Very good price.Wouldn't be without it.

Works but a lot of pressing buttons so many times, holding for so any seconds etc. Could have been made simpler to use. It works though. No flaps etc to screw to a box, side, board etc.