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A brilliant bit of kit for my campervan. After upgrading to a Renogy 175w solar panel, a 100W lithium Battery and a DC-DC charger, the Renogy One Core was the final piece of the jigsaw. Easy to install and gives an accurate readout of solar power, battery condition and charging state. I had a slight problem connecting to my DC Home app until I changed the app setting on my phone. I'm very impressed and looking forward to some sunny days in London to check the solar performance. (I might have a long wait1)
Works well. Easy to fit and once connected to your WiFi, you can monitor from anywhere that has a 4g mobile signal. I like the fact that you can control smart relays that are compatible with the controller. Only issue is when you use the level feature on your phone, it takes several attempts to connect via Bluetooth.