[eternityforest]

Seems like the EU laws are going to fix this problem soon!

It sucks that we don't have a universal battery standard for lithium yet though. Seems like at the very least, the OSHW community should have one.

We could have separate charge and discharge pins, and I2C data, so everything stays chemistry-agnostic, and you could parallel two batteries just with diodes on the discharge pins.

You could have all the connections on one side, and only have one width, just different lengths, so the small ones fit anything with just a a spacer block.

Or you could even specify an integrated screw hole.