Vallantho

Might order one and give it a try. It’s the whole quick charge thing that could cause a problem though. They use Chips from Qualcomm that negotiate with the device plugged into it to establish how much power to deliver. The controllers on the dew straps are just dumb devices so the charger might fall back to the basic USB spec which is 0.5 amps. But at least with Amazon it’s easy to return it. Worth a try. i did think about knocking up a couple of 12v controllers with some 555 chips I got. But I’m guessing the wires in the straps would have a different resistance to those used in 12v straps?

That’s the sort of thing I need. As long as it doesn’t use QC3.0 it would probably be ideal. Also after a bit of searching I see Pegasus Astro do a USB hub with 6 ports providing 2.5 amps each. It’s £168 though. But it would solve a lot of potential headaches.

I’m trying to power a couple of 5v USB dew heaters. Obviously the amp draw is too much to power through a standard USB hub and I’d rather not use a wall adapter because I don’t want a birds nest a cables to deal with. If I power them through a Power Bank would I be able to get away with one or would I need one for each heater? I’ve seen plenty advertised as putting out 2.4amps but it’s never really clear if that’s per device or in total split between devices. Also how much charge time could I expect from a 20,000 mah battery? Will I be able to get a full night out of it?