As some of you may know, I have been looking all over for a way to safely charge a larger number of Li-Ion loose cells with individual voltage monitoring per cell charger slot that would provide safe balancing of pack voltages.
After spending about 25 hours searching for every place and forum that sells Lithium chargers, Lithium Batteries, Lithium Cell Balancers, LiPo Packs, and all the various RC communities....I have come to the conclusion that such a product does not yet exist...as there are only 2 slot cell chargers like the Pila or UltraFire both of which charge slowly.
I began a conversation today with the owner of a large RC supply company who saw an opportunity. I showed him the crappy DSD type cradle charger to give him an idea of a 2 slot model, even though that one is both cells charging together.
He was thinking it would not be that hard to setup a multi-slot charger with 10-12 spring loaded slots that would each have a "tap" lead that would go into a balancing charger setup.
Of course you would need a separate charger that does cell balancing, but this would be the best way to resolve all the safety issues of loose cells in packs, and would even give you the capability of 1C charging rates if you wanted.
This is fun, and he can see the huge market for this. He was stunned when he saw the number of users on this forum....although check out the 1,100 users on this other vBulletin forum for RC users.
I was thinking it would make sense to have him get a cheaper balancing solution charger & power source to combine with this setup. Also to make sure it includes the capability of charging D & C Li-Ion cells safely.