My current means of powering things is USB rechargable batteries. I have a about five of them that range between small 3000-5000mah ones to a big 20000mah interstate battery jump starter pack. Is there a device that lets me add all their power together into a centeral power source so I don’t have to keep swapping them out?
I’m assuming you mean USB powerbanks.
I’d be surprised if there was such a device. It would require somewhat sophisticated electronics to work well, and the market for it would be small. A design that didn’t result in power cutting off during the switchover would need to keep at least two powerbanks active at a time, and that could negatively impact efficiency since the electronics in the powerbank consume power when active even under light loads.
Or, I mean, it could just wire all the positives together and all the negatives together and hook that right into your target device.
It’d be the same output voltage regardless. A little less internal resistance, and lower step down in the later phases, but neither should make a difference in what you’re powering.
Kinda like how there were those converters for the GameBoy back in the day that let you put C batteries into it. Same principle.
What you need is a communist dictatorship. That ought to make them work together.
Plug the charging port of one into the next one?
That can work, but since the batteries are at roughly 3.0-4.2V depending on state of charge and standard USB power is 5V, that’s a whole lot of steps up and down. Each one takes an efficiency hit. The last one in a series of five would likely waste the majority of its energy.
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Just get a few big ones and put aside the small ones for portable/mobile use.
