Where do ya all buy your battery building supplies from?

[frankthedragon]

This might help - it really depends on how you’re building the battery

Heatshrink sizing [SRO]

There is confusion about the best heatshrink sizes to use for making batteries. I also struggle with this. So I want to ask all of you – what size heatshrink do you use? bonus points for links single row of 18650? two wide 18650? two wide, two tall 18650? two wide, two tall, offset 18650? single row of 21700? two wide 21700? two wide, two tall 21700? two wide, two tall, offset 21700? Any other geometry or sizes? 26650? What size do you use? heatshrink size heat shrink batt…