Battery Capacity Tester, Battery Monitor, Voltage Range 8V-80V and 0-100A Sampler base, with 6.5ft / 2m Custom Cable, for Auto Car Motor Boat Caravan RV

Found this gauge and shunt quite easy to install . Not sure if any reason not to do it the way I have . I found the bolt on the shunt was the same thread as my renogy 24v 100ah battery . I just removed the bolt in the battery and took the nut off the shunt and bolted the negative side directly to the battery as picture . One thing to note is you need a thin piece of red wire not supplied to go to the positive of the battery . The gauges tell you battery percentage , amp hours remaining, voltage, the amps going in or out of the battery. Would have liked to see wattage but for the price it's ok

This is a great battery monitor at a good price, easy to install and easy to work.Great value for money would recommend.

Very pleased with my purchase. Was simple to install and use and seems to give clear accurate reading of the battery state.

No idea if it works or not yet because I'm still making a bracket for mounting it into the van. If I'd known earlier, I'd have sent it back for a refund. It's become a hassle and I expected a device like this to come with a mounting bracket.

Once the instruction manual was understood (not brilliant English translation) it was easy to install (disclaimer, I'm an ex auto electrician so I understood fitting using previous knowledge and experience) and set up.It reads within 1Volt of my old faithful DMM and Amps displayed are within 100mA, excellent results at this price point!The meter has a back-light that is:OFF when no current flowingPULSES when current is flowing into the battery (charging)ON with power flowing out of the battery.The only thing I can say against it it that the back-light is quite bright and I needed to cover it at night (monitored battery was powering fridge freezer whilst engine was off) to be able to get to sleep, some black duct tape solved the issue in the short term, moving the meter into the cab area completely solved my issue.That said I think it is a brilliant piece of kit and well worth the cost.

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.

The media could not be loaded.  This is the second one I have purchased and am equally as happy with it. It works perfectly and is very accurate being a direct shunt device A must for any RV or situation you require an actual true battery level or charge/ discharge rate.

Nice thick longer than stock shunt to display wire. Allowed me to route from house batteries to nav station very easily.

Overall this product is good value for the money.A plus over AiLi is that you already have the extension.The instructions could be clearer, okay if you are an electronic whiz. Though not the clearest for the ordinary Joe.You also need a magnifying glass to read the very small sized letters.Would purchase again.

Preis- Leistungsverhältnis in Ordnung, gute Einbauanleitung. Funktion einwandfrei. Zu empfehlen.