At first the device seemed to work fine. However, Bluetooth apps are useless. The apps don't even remotely match the readings on the device itself (incoming PV, etc.). Example: The application reported 429 watts from my array. The device said 768 watts. The rest of the features are just as useless. Also, after a few months of use, I found that my 1.6kW solar array would never produce more than about 700 watts with a Renogy charger. I switched to a Victron charge controller and get full power. My guess is that cheap heatsinks will cause the device to throttle solar energy. Knowing what I know now I wouldn't buy this.
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