Re: Good luck, will be nice to see the third iteration
The problem with the idea of 'plug whatever damn battery pack you have handy' is that chargers are generally designed for a specific battery chemistry.
what's good for charging SLA batteries may not be suitable (or desirable!) for LiPO. What a LiPoFe4 stack would find usable would be unusable for an SLA, or NiCad, etc.
The 'multi-chemistry' chargers for tools? The charger and packs have circuitry that tells the charger what kind of battery was jammed into it, or the battery pack has a built in protection circuit to cope with whatever trash the charger throws at it. (At least that's my assumption- I'm quite probably waaay off.)
Biting the hand that feeds IT
