Ameyam,

To answer the first question, there are two parts I see from that. 1- covering their butts, lipos have a greater risk of leaking or exploding if improperly charged then say, a nicd, so when the fire department shows up and says your house burned down because of a lipo sitting on the shelf, you can't go and sue the lipo manufacturer.

The second part, and the solution for the first part, is the use of a cycler or 'smart' charger, something like this. I personally, would never mess with lipos without something like that, those will intelligintly tend, charge and discharge them. It will also greatly increase the life of the battery over time.

Good luck!

John

(Sorry, I have no suggestions for a stable 3D electric).