*update* Anyone ever use one of these

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Looking to make a backup parallel battery setup that would have 9.6Ah @ 25V (that's alot)
This unit states 45watts, so only drawing around 2A at my voltage.

I'd use Type C USB

Any thoughts appreciated.
Good? Bad? Ugly?

https://www.amazon.com/dp/B081CV9MYJ/?tag=cpf0b6-20

 

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So I got that part a while back,
was waiting on a pre made parallel cable connector for couple of 25V batteries to be used.

Connected it up today and charged 2 different things, one was at 5V@2A for 10 Watts,
and the other was at 5V@3A or 9V@2A for 18 Watts.
The little part only got warm for what I was doing & all was good.

As you can see, it steps down to voltage needed.


That little part worked like a champ & for something like $18 spent, I have a huge battery bank at the ready.

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Also: I tested/used both types of USB on the part