It's a bit early to tell on the performance since I just installed them a week ago, but the delivery was quite fast, The charger took a little extra time to be delivered. I am quite impressed with the quality of the monitor how it works and how simple it was to install. Time Will tell
Great deal and working great with my 24v 3k inverter! Bluetooth makes it convenient to see status.
I ordered my first two and everything went pretty smoothly, arrived in an acceptable time frame, and they both arrived in perfect working order, all in a little more than two weeks from purchase to delivery to the east cost. I haven't used them because I intend to add more and want them all to match usage, but now I see if I order more they wont ship out for about a month, don't know what that's about, but what can ya do