Hi all who know curcuit board stuff!
I used to use rechargeables AA batts for my hot shoe flash, eversince I bought some second hand Quantum batt packs, these rechargeable AAs were just sitting in my drawers.
So I was thinking of using these AA batts as an external battery for my portable storage, mp3 player or maybe even media player.
Just wondering if all you electronic engineering experts know how to make an small circuit board to regulate a 5V out of maybe 8 Sanyo 2500mAH batteries? Or even better a variety of voltage out of a few sets of batteries like the one East gear is selling?
Just an idea...