500A Battery Monitor with Shunt M10, 8V-120V Battery Monitor for RV Motorcycle Golf Cart Solar Panel with LCD Backlight Screen Buzzer Alarm, Capacity Percentage Time Power Voltmeter Display

Just finished the install of this to monitor my house battery in the bed of my truck. Seems to work well and the readout is clear. The backlight illuminates well, and when there’s no draw or input it turns off automatically. The instructions are clear and easy to understand.

Just installed this yesterday and haven't had time to review all the functions, but screen is easy to read, displays volts, amps and watts clearly and percentage of remaining battery power in our lithium batteries, seems to be well built and so far I've been impressed with its functionality and quality. Hooks up easily and shows all the information I think I need to monitor our battery life. Pretty impressed so far. Will review again after I've spent more time using it in our camper.

This was purchased in the USA and the installation manual is entirely written in German. Iwas able to download the English Language manual and install the monitor with no issues. This unit works as described, and the programming instructions were easy to follow. The seller responded in a timely fashion. I would have given 5 stars had the English Language manual had been in the package when I received this product..

October 2024: Bought this to monitor new Litime batteries. Handles up to 500 amps. Wish it came with a mounting bracket. Its meant to fit in a cabinet cutout, I mounted it to the wall using Command strips. Helpful knowledge about the background light: a. Background light is off when no current is flowing to or from the batteries b. Background light flashes softly when batteries are charging. c. Background light stays on when batteries are draining. October 2025 update Accurate readings and works well but temporarily cuts power off at 50% load (250 amps).

Gets the job done. I had upgraded my lead acid batteries on my RV to a LiTime LIPO 230 ah battery. I wanted to add a shunt and add the LiTime Shunt. Not too difficult to install. I cut a hole in my RV panel to install and looks great. My only wish would have been that it had Bluetooth connectivity but I knew when I purchased it didn't have it. I added a Victron Shunt later with Bluetooth capability and they work together fine. And they both read the same so this tells me the LiTime shunt works great. If you don't care about bluetooth it works great.

Purchased this product to monitor my LiTime 200aH battery ~2 years ago. This monitor has worked great up until about 2 weeks ago when one of the wires that plugs into the monitor broke. I emailed LiTime, they asked me to send a picture of the broken wire, and then immediately sent out the replacement part to get me up and running again. Not only that, but it arrived to my rural address in only 2 days. HIGHLY impressed with their willingness to even warranty the part, being that it's just under 2 years old... but also the ease in which the communication happened. It wasn't jumping through a million hoops like with other companies, and then waiting an ungodly amount of time to process the request. From initial email to part delivery was about 4 days (and prob would of been 3 if I'd replied to initial email quicker). HUGE thank you to Bella (the CS person I worked with) for making everything so simple and smooth. This type of customer service weighs heavily on my future product decisions and is greatly appreciated. BTW, I later found out that it's just a standard "5 pin JST XH" cable, as I saw a few other reviews mentioning the wires breaking from the connector. Less than $10 for a ~5 pack here on Amazon.

Monitor seems to be working fine,much better than the $10 one I started with.Did take some trial and error to program,directions are a little sketchy!

The directions say to completely discharge the battery and then hold the down arrow. Well, after the bms shuts off the battery there is no power to run the monitor. Charging for a minute and then letting the battery rest, seemed like the thing to do. When holding down the arrow button, there in no response to let you know it has "learned" the discharged state. Same for setting the fully charged state. It is easy to accidentally hold the up arrow instead of the light button when it is dark and you want to turn on the light (it is installed in my travel trailer). Holding these buttons does not change the zero and full voltage numbers in the menu, so what does it really do? The monitor seemed to work after I set the discharge point, but then it acted odd and did not show a reduction in battery capacity after putting a large load on it for 30 minutes. A 100 amp load should have reduced a 200 AH battery to 75 percent, yet it still said 100 percent and 200 AH on the display. I emailed the company regarding this issue, as it was near the 30 day return limit on amazon, and they never responded. I wish I had gone with a victron monitor. The litime battery is recommended by a popular youtuber who has opened a number of them and the price is much better than some of the others, but I can't recommend the other devices they sell and am questioning the quality of the battery since I don't have a reliable monitor for it.