QWORK Battery Monitor Voltmeter Ammeter, Voltage Current Range 8V-80V, 0-100A Voltage Current Meter with 6.5 ft Custom Cable

Installed on a EZGO 48V golf cart. Install was pretty straightforward. Drilled hole in dash for meter. Diagram was pretty easy to understand, but the initial setup instructions were a little tough. Looks like they used Google translate from Chinese to English. For those who left negative reviews saying the meter wasn't accurate, im curious if they didn't input the correct specs for their batteries. You have to input how many amp hours your batteries are and what voltage the batteries are considered dead in order for the meter to know when they are dead. The meter is very accurate but only if you input the correct battery specs. For example, my 160amp hour 48V batteries should remain above 42V under load or 46V idle. As soon as the meter registers the batteries are below 42V it will automatically jump the gauge to zero percent charge. Or once 160amp hours have been used it will show zero percent charge. Saw some reviews complaining about this. The next issue I had was after recharging the cart, the gauge wouldn't register that the batteries were charging. Turns out you have to move the Negative charger lead from the battery post, to the "P-" post of the shunt in order for the meter to register the batteries are charging.

Very easy to wire and set up after looking at U tube on programming. Plenty of battery information for such a reasonable price. Highly recommendsmart and accurate

Purchased this for my travel trailer to have an accurate estimate of Ampere time 200ah lithium battery percentage. I needed the longer 13' cable because the battery and shunt are inside an exterior weatherproof battery box. Shunt appeared to be of a good quality material. Mounting the readout display inside my trailer was fairly easy by following existing conduit path inside the trailer. Reading the small text included with the mini-manual was difficult and needed to read the instructions a couple of times to get everything dialed in. I followed the instructions in the manual and depleted the battery (using a device similar to "MakerHawk Electronic Load Tester") to set my 0% baseline. I do this will all my new lithium batteries to make sure I'm not getting ripped off. I noticed a lot of youtube videos chose the alternate method easier method of setting up the display unit by charging the battery until full then setting the device to 100%, but I chose not to go that route because I wanted to make sure where my 0% would be so that I wouldn't be stuck with a dead battery while out boon-docking in my travel trailer. Now I feel confident that I can use the trailer to a low percentage without worry. I attached the mini-manual for those interested in seeing what is required to set this up. All in all, I'm very happy with this device and would recommend this to anyone in search of a cost effective battery shunt to estimate battery %.

So many things that could be improved in the design to make it a really good product, but it works at a basic level and works well for what it's specific function. It's already a pricey device, another $5 to cover improved materials and engineering design improvements they could be #1 in the market. But instead - they are just mediocre. It could be designed to fit multiple hole sizes as the meter is commonly used to replace a meter on a lead acid battery installation, i.e., an existing hole. It sucks having to open up a hole to exact specifications. A new case with sleaves an fix all that - not heavy lifting. They used the cheapest tactile switches possible, in electronics product manufacturing. At least upgrade to a self-adhesive rubber button or something - Seal the electronics for an IP rating while your at it, too. I have one button not %100 responsive and I know me - I will break it out of frustration at some point. Etc. So many things i am sure I am missing. And I am sure the manufacture give Zero F s. If they read the comments and took these reviews to the design team, revised their product, I'd buy another one. In conclusion, it works, but in hind sight I would look for a nicer meter or measuring system, since BT it incorporated into most newer LiFePO4 batteries. Great internals - ultra low battery consumption and precision measurements are lost in the quirks and lack of overall quality.

Wanted to save money v a smart box for the 100ah LiFePo4 battery to run my trolling motor. So I bought the $12 Atwood box and this Qwork meter. Used a hole saw to cut a 55mm hole on the inboard-facing surface of the box, inserted the meter, sealed the hole and attached the meter with silicone adhesive and wired in the sampler as per the directions and I had a diy smart box. After thinking about it for a couple minutes, the meter figured out the battery type and capacity and started giving me readings that exactly matched those from my smart charger. The meter itself appears to draw a negligible amount of power. Be aware that it does not come with the jumper to connect the negative battery terminal to the sampler or the 0.3-0.75mm2 wire (I used 20AWG) to connect the sampler to the positive terminal. You'll have to buy or make those yourself. I don't want to drill holes in the bench of my boat to install the kinda cheesy plastic loops provided for the tie down strap and it's too short to go around the bench, so I had to use a cinch strap I had lying around for that. Edit: To clarify, the straps are a feature of the battery box, not the Qwork meter. Also, I installed the battery box on my boat yesterday and straps were plenty long enough to wrap around the bench, so ignore that comment. Quibbles aside, I'm happy with this purchase and like the peace of mind I'll have about battery life when I'm out fishing til dark.

This product works well in my setup on my camper battery bank. The directions were easy to follow and installation was straightforward. The battery percent setting and amp readings are accurate. My only gripe is that it was difficult finding wire small enough to fit into the power clamp box and the amp hour reading doesn’t match my battery setup. It assumed I had 100 amp hours and in reality my batty bank is 260 amp hours. Otherwise this works great.

My unit is working great now. But after two wasted hours I realized that the poorly written installation instructions are also poorly drawn. As you can see in my attached photo the B-, or the battery negative side is to the left of the little Molex connector that goes to the display. BUT, on my unit, B- was actually on the right. The labels on the shunt aren't visible on my cart once the wires were on so I wasted a lot of time thinking the unit was bad. I installed it according to the "manual" drawing but should have installed it according to the B- and P- labels. 1. If the shunt has P- going to the battery negative the meter will flosh constantly and read inaccurately. 2. The shunt is directional and B- must be the only wire that is attached to the B-side. 3. If the charger and every other negative load is attached to the P- side the unit will display accurately. 4. It's easy to set up, but only if you glom instructions from reviewers or other forum websites. For Percentage charge your batteries to 100% then hold the percentage button (right). To enter AmpHours, know your battery bank amphour capacity then press the center button until it display AH and set your capacity. 5. There isn't any website or phone number that I can find for technical support or warranty. So even though they state it has a one-year warranty, there isn't any place to send it. It is the easiest setup for an totalized amphour meter I've seen. I like it, now that I got it working.

If you just need to know how much is left in your battery this is it! It takes a little playing around to get it all set up but its not too bad, hey only has 3 buttons :) I only use the % or sometimes the Amps to see how much power is going out at a certain time. It is the best device in that price range with the simplicity I needed, hey my wife wants to be able to read it too! Works great with any battery but best for LIFEPO4 or other lithium chemistries

C'est exactement un testeur de batterie que je recherchais. Pas trop d’options inutiles et pour un prix très compétitif. Comme l'appareil fonctionne avec un très bon shunt, il surveille à la fois la charge et la consommation de courant, vous donnant ainsi un aperçu précis de la capacité disponible de votre batterie. La tension actuelle (V), le courant (A) et la capacité disponible (Ah & %) peuvent être lus.

Good device. Fairly easy to install. Like to have 2 digits father decimal point.

Preis - Leistung in Ordnung

Leuk dingetje, doet zn werk. Maar de leesbaarheid en duidelijkheid van de handleiding laat te wensen over. Met name de symbolen en de vertaling in het engels zijn niet goed.

Ottimo e di facile utilizzo