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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@Robin
Tue 2018.08.14
I like the sleek and simple USB Power Bank design solution that @allObjects suggested. On a hunch, I wanted to see how well the EasyAcc-10000mAh
USB Power Bank faired in comparrison to AA batteries.
https://www.techadvisor.co.uk/review/power-banks/easyacc-powerbank-review-easily-one-of-best-value-power-banks-3624761/
Listed under 'Specs'
Even though the spec indicates there are two USB port outputs, there is a maximum discharge rate to be aware of.
4th pp
"the power bank's max output is only 12W (meaning it can support only one of its two outputs at full-speed at a time)"
This restriction means that this type of supply can't deliver the current that much better than the four AA cell solution described in #16 above.
The only difference is that while 4 AA batteries have a capacity of 8000mAh, the EasyAcc-10000mAh has 20% more capacity.
That would mean you would be able to power 100 LEDs max for one hour longer, that's it.
Does have the ability to be easily recharged through a micro USB adapter however.
@AdaMan82 Any chance you could provide us with your LED design requirements?
Number of LEDs in a strip?
Number of strips?
How long the project is always on?
Limitations for the supply, size, space, portable or wall plug etc?