Charging USB devices

FrankK · 2024-07-15T20:23:09-0700

My set-up: battery + MPPT controller + 2KW pure sine wave inverter + solar panel.
Looking for the best/standard way to charge USB devices (i.e., other than charger plugged into AC, which I'm assuming is less desirable?) My MPPT does not have any USB ports, but it does have 'DC Load' ports. Is there a USB hub I can plug into that?

ThaiTaffy · 2024-07-15T20:27:15-0700

FrankK said:
My set-up: battery + MPPT controller + 2KW pure sine wave inverter + solar panel.
Looking for the best/standard way to charge USB devices (i.e., other than charger plugged into AC, which I'm assuming is less desirable?) My MPPT does not have any USB ports, but it does have 'DC Load' ports. Is there a USB hub I can plug into that?

What battery voltage? there's plenty of step down transformers that output 5v usb but they generally cap out at 24-36v so if you have a 48v system you would likely need another step down.

Q-Dog · 2024-07-15T20:32:44-0700

a 12 volt battery? look here.

12 Volt accessories for boat, car, or RV

FrankK · 2024-07-15T20:35:50-0700

there's also a RS-485 connector, not sure what that's for

FrankK · 2024-07-15T20:37:27-0700

Q-Dog said:
a 12 volt battery? look here.

12 Volt accessories for boat, car, or RV

thanks, but I don't see anything there that could plug into my controller

Q-Dog · 2024-07-15T20:39:15-0700

FrankK said:
thanks, but I don't see anything there that could plug into my controller

Wire them to the load port or directly to the battery. With proper fusing of course.

Charging USB devices

FrankK

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ThaiTaffy

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Q-Dog

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FrankK

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FrankK

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Q-Dog

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