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

I've used other monitors, but I like the interface Li Time has and the percentage capacity.During setup I did find one issue in the manual I received in the box. The manual stated to set the "Full V" parameter to the batteries "resting voltage". I have a 12.8 Li Time 230Ah Lithium battery. Typical "resting voltage" is 13.3V. The problem is that the monitor uses the charging voltage to set the capacity to 100%. My experience was the monitor showed 100% capacity prematurely as the charge voltage reached 13.3V. I contacted Li Time and they were very quick to correspond with me and they updated their manual and sent me a new version. The new version says to set "Full V" to the batteries (system) charge voltage. For a 12.8V Battery that value is 14.2V. The Lithium charge can charge as high as 14.6V when the battery is at/near full charge. I did set my value to 14.6 before corresponding with Li Time and the charging/discharging tests worked fine. I will probably set my controller now to 14.2 and see if it makes any difference (but I think either value will work)I've corresponded by email with Li Time now 2-3 times and every time they are very prompt and super helpful. It has been a great experience for me.n updated manualwas

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.

This product was easy to install, as long as directions are followed. When you are in the process of installing it, when it comes to the part where you are instructed to drain the batteries until they stop working, make sure you do so as, when configuring the monitor for your particular system, you will get bad results if you don't follow this part of the setup exactly. DRAIN THE BATTERY! Also, as an owner of this product, you may have to reach out to their tech support... Well, Long story short, Li Time Tech support no longer exists! You are encouraged to contact their customer service department. I've emailed Li Times Customer Service on March 27th and am still waiting on a reply. (8 days later) The product itself is great but, after sales support could be bothersome.

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.

Works as advertised. Directions clear.

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.

Easy to install, works great, worth the money to know what state of charge your batteries are at. No more guessing or using the RV idiot LEDs for a battery gauge.

Thank you.