20A solar charge controller 20A 12V24V solar charge controller

There is no manual in the box, we have tested these solar charge controllers and they work perfect, very low price and good features. There are three buttons, first(most left side) is menu button, press once and it will show voltage level after which battery charging will stop, by default, it is 14V, to adjust this level, Long press menu button and then press next two buttons to increase or decrease this level, once done, press menu button again.

Press menu button second time will show voltage level after which charging is started, for example, once battery fully charged, charging will stop, it will only restart when level drops below this value, it is 12.5V by default.

Press menu button third time will show empty battery voltage level.

Note: Actual product color can vary from the picture displayed here.