Hi guys. I set up a new 100w panel to my new 20amps charge controller and connected a little 12v 7ah batterry inside it stays on fine and very slowly adds charge. I have now moved jt outside and the controller is now charging mych better but also turns off about every 30 secs for about 10 secs then just comes back on. I can hear a relay click in and out when it does this and the display goes off as does the out put to the onboard usb ports. I have no experience of these things so i dobt know if its faulty or somr sort of mismatch etc. Any help much appeciated. Its EPever controller if it makes a difference. Thanks for any help in advance.