ESP8266 Community Forum

Hello. I'm planning to build a project that will display text and various images on four 8 X 32 Neopixel matrices, like these ones:

https://www.adafruit.com/product/2294

But I would like it to run on batteries, and given that each of those can draw up to 15 A, for a total of 60 A, I'm going to need some serious juice. Not that I'm going to try to get 60 A out of any portable power source, except perhaps a car battery, which I don't want to carry around with me. I won't ever turn on all the LEDs on full white, I'll only have a few on at a time and keep the RGB values under 100.

I've already set one matrix with an ESP8266 displaying scrolling text and am powering it right off the board, and everything seems to be ok so far. But I'd like to get some good high mAh batteries and am wondering if anybody has any good suggestions for that. So far, I'm thinking of something like this:

https://www.aliexpress.com/item/32968895139.html

Or perhaps two of them, and I would connect one to two of the matrices and the ESP, and the other one to the other two matrices. I would connect the negative wires all together, but keep the positives separate, as described here:

https://www.eerkmans.nl/powering-lots-of-leds-from-arduino/

and use two of these:

https://www.adafruit.com/product/1385

to convert the higher voltage 12.6 down to 5 V.

Thanks.