If I really wanted to do things right, what charger would be suitable for charging the packs for my transmitter and receiver? One that would charge, recycle, and let me know when I have a full charge?

Right now I have no real way of knowing if my batteries are fully charged, other than a cheap multimeter. The only charger I have is the little wall transformer unit that came with the setup I have.

I would love to go fly right now but I just don't have enough confidence in the batteries I have for the transmitter or receiver. They have been sitting in the units for a couple of years now, unused, and uncharged. My other issue is, I plug them in, let them sit for however many hours...don't know if I am over charging, under charging or just right.

Sorry for the barrage of questions...just trying to get a better understanding of what I need.