Some times it seems that there is so much to keep up with. I am getting confused about batteries. NiCAD, NIMH and Li-Po. What are the advantages and disadvantages of each type. How do I know what size to get? How do I know how long I can epxect to fly off a single charge for a given size battery.

I am currently running a Spektrum DX-7, with included 1100 NiMH battery. Well I should say will be running, as both receivers are getting their firmware upgraded by the great people at Horizon. I have been out of the hobby for a lttle while, but managed to purchase a GB Eagle with OS 40 2 stroke, complete with servos for 75.00. This is what I will run first, to get back in swing of things. But I own alot of models and engines of various sizes and the engines are anything from .25 2 strokes through .91/1.00 4 strokes, to G20ei/G26 gassers.

Is there a cheat sheet for understanding when to use what battery for a certain application. I aplogize in advance for being all over the place, but I am at work kicking this out and it has been on my mind for awhile.

Thanks!