🔋 MNJ MOTOR DC Battery Monitor Meter: 0-200V 0-100A LCD Display for Cars, RVs, and Solar Systems - Digital Multimeter Voltmeter Ammeter with Current Shunt Wiring Kit Set Review

This gauge gives me detailed information about my battery and I can see its status quickly via the SOC. Firstly, to connect the wires, don't just slide them in, you need to press the small slot, insert the wire, and then release the slot. Now you need to set "Full” and "Empty” voltage for SOC. I have a 12v 100ah battery and am having some trouble choosing the settings. I've been using it for over 3 weeks now and it's still stable.

I like simplicity. However, at the time of purchase, only a few YouTube videos were available to support installing SHUNT. Not too difficult to install but the video is helpful when dealing with high volts/amps. Apparently I'm not the only one checking this. A guy from Australia and David Pose made helpful videos showing how to place a shunt depending on the markings. Bought 2. My cable misplaced, one monitor worked fine. The second monitor stopped showing the state of charge (SOC) no matter…

The manual is written in terrible Chinglish, which is not surprising. If you could program a VCR or an alarm clock, you shouldn't have any trouble doing it without the instructions. In fact, this is a two-way button - a short press and a long press. But the voltage this device reads is consistently 0.2V higher than the readings of my built-in voltmeter and my standalone multimeter. While it's easy to make adjustments (in my eyes), I'm not sure I can trust this current measurement (A). So one…

The product did not fit me. Follow all of these instructions (including connecting to an external 12V source). It almost burned my hand! This was not reduced to 1 but the same was true for the block replacement I received! I was hoping to use this for a senior project at my engineering school but I feel it needs to be returned to the seller. I literally followed the manual's instructions, wire by wire, making sure none of the wires crossed and making sure all the connections were secure.

The interface takes a while to reset power usage and other stats - power usage, mAh usage and run time have to be reset individually by holding down the small button. not my favorite. It's also important to note that this is NOT bi-directional - both charging and discharging affect power consumption, mAh and runtime in the same way. You should reset three stats after every charge if you really want to keep track. Overall it does what I wanted, which is to tell me how much time I have left on my

I bought the 100 amp version and was pleasantly surprised at the accuracy - even with a 0.5 amp load. The accuracy of the current and voltage readings is confirmed by calibrated multimeters. Easy to set up, the diagrams in the instructions are very clearly and conveniently reproduced on the back of the meter itself. The meter frame has snap tabs for mounting in a panel, cabinet or enclosure. The interface for setting the meter to the correct voltage range for your batteries (which you need to…

I'm giving 5 stars because it's a great tool at a great price and gives you useful info on battery usage. I replace mine because one limitation (which I was already aware of when I bought it) is that it doesn't distinguish between charging and discharging. So if you see some amps going through, you can't tell if they really are amps. Input to the battery or amplifiers coming from the battery. Usually it's obvious which way the current should go (because you know if your charger is on or not)…

Comes nicely packaged with meter, shunt, cables and instructions. You can imagine the picture. Which can be both good and bad. The connection instructions are clear enough. Except that it doesn't say how and where to connect the charger. The ammeter is unidirectional, which presumably means that current flowing in both directions is added. Which in turn means that the counters at AH and WH increase in both directions due to the current flow. I think that means if you connect the meter as a…