battery pack

So I was looking for batteries for my wii portable and I thought, why couldn't I just use the battery from a wii u or some shit, so I found this battery on Amazon that is a supposedly enhanced Wii U battery, so can any of you pros let me know if this is a suitable battery for a portable wii...

starting work on a portable Wii, last time I was active modding in Wii was a decade ago, 4.2U. Never dabbled in portablizing or board trims, so this is all really cool exciting stuff to me, but I'm not sure on best practices for power control. I have an OLD wii (-01 motherboard, I still have...

Yo wuss poppin. For my portable gc, I made a 14.8v. Battery pack with those amazing ncr18650 batteries (cancelled because wii is infinitely better) I used a tenergy smart charger and their 32010 protection circuit for a 14.8v pack. Now that I need to use a custom regulator, I want to make a...

I am completely inexperienced working with batteries and making them, I want to be as cheap as possible with my Wii Portable build, and have a relatively small battery pack. If someone who knows more about this could help me out, It'd be very appreciated. What I need to know: What's the most...