Comment by eternityforest

I'd love to see a new battery standard.

Something future proof for new chemistries, consumer friendly and self protected, able to be series-es and paralleled if needed, etc.

Maybe even designed to be an external part of the case like 2 way radio and tool batteries, with the option of a retaining screw for toys and tamper resistance.

A few different sizes, from keychain up to power tool, and paralleling adapters to go bigger.

The electronics would probably cost pennies in volume, just like the tech that goes into those lithium AAs with built-in chargers and buck converters that are almost really awesome.