RE: first r/c plane
Its just a great battery charger that does everything but balance a LIPO. You'll need one of those blinky balancers, but thats a different topic all together. It will cycle your batteries for capacity checks, quick charge your batts if the weather man is wrong, discharge to the optimal level for storage, and it works on NIMH, NICD, LIPO, and LI-ION. I seriously dont know how i got by without one. Let me know if you have more questions about it.