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M6ii power through USB

Started Apr 10, 2020 | Discussions thread
nnowak Veteran Member • Posts: 9,076
Re: M6ii power through USB

ken_in_nh wrote:

nnowak wrote:

Thanks nnowak. When looking at the comments to this adapter, people seem to be able to use it with a usb power bank. If you have time, would you look at it and give me your opinion?

https://www.amazon.com/dp/B07J3DRKKM/ref=psdc_13535461_t2_B0864T2JYZ

It sounds like it should work with the M6 II. You don't need a PD power bank. Any standard USB power bank should work as the adapter is taking the standard 5V 2A USB output and stepping it up to match the output of the LP-E17.

I suspect not. Seems to me the issue is probably a high short-term current draw peak. Canon's power thing no doubt has a large cap or two to handle the peak current. Given the size of energy storage caps, I suspect Canon didn't have enough space to add one in conjunction with a USB power port. This is the only thing that makes sense under the circumstances.

So if you do a home brew battery substitute, you might want to put a big cap in parallel with the output. The right size resistor might be tricky - high enough to protect the power source, low enough to power the peak demand of the camera.

All this is just a guess, but consistent with what we know.

Or, just buy the kit linked by Hoka Key along with a USB power bank.  Many of the positive reviews are from M6 II owners.

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