Nic Bryan - Member - The Prepared

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Reply to: Off-grid power 101 Posted September 23, 2019

I’ve actually run a few of these tests myself. And yes, I get <4VDC out of a usb port on the charger. But not from the 5V pin (Which actually outputs ~7VDC) the <4VDC is the signal pin, which tells the phone it is plugged into an authorized charger. I’ve got 5 different portable battery packs for my phone. 1 is solar, but the panel on it is maybe 1W output.

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Reply to: Off-grid power 101 Posted September 23, 2019

I’ve actually run a few of these tests myself. And yes, I get <4VDC out of a usb port on the charger. But not from the 5V pin (Which actually outputs ~7VDC) the <4VDC is the signal pin, which tells the phone it is plugged into an authorized charger. I’ve got 5 different portable battery packs for my phone. 1 is solar, but the panel on it is maybe 1W output.