Manual Smelly. However, after playing around with it a bit, I figured it out. The device was installed more than a year ago. Remotely charge 4 golf cart batteries from a 24 volt inverter to run a 120 volt, 60Hz, 0.5hp well pump. for livestock. As I said, there is no network at all at the remote site. It's been 1 year and 6 months and the thing is still working. I went to the water tank just to make sure it was toast. The animal husbandry always had water. Not bad. And the price was really good. If you make solar panels with your own hands, and you need batteries and solar energy for a well. It's a good choice. I hate to say it was made in China.
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