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I can get any voltage switching power supply needed. I can fine tune with the pot. Don't think there are 20 amp laptop bricks. Mainly need to figure the switching out. Like I said I have done this with a pico ups from minibox.com. It worked but that board is only good to 10 amps. I know from...

That looks like a great charger but told much for my needs. I do not want client to need to bluetooth connect and set up. Just plug and play. Still I twisted in this method but too pricey and requires client to manage. Any cheaper simpler options?? We have done this as well with solar connectors...

We already have solar powered tables to charge phones that the client can plug in. It automatically switches to the power supply to charge the battery instead of the panel. Sounds like an option. I'll look into it. Thank you.

Clients use the unit with solar power. But want the option to also plug into wall power. So I am fitting the unit with a 20amp switching dc power supply. This will feed 12v to the solar controller instead of the panel. I am looking for an automatic transfer switch to do this. The only boards can...

I sell solar powered phone charging kiosks. You can lock your device in a locker with a code and plug into a charge cord. It has 12 lockers. My current setup is 160watt solar panel, 100aH battery, and 20amp solar controller. Clients would like dual power option. I would like to make it simple so...