"Morgans" wrote in message
...

You do realize that Lithium ion batteries need a pretty sophisticated
charger to keep them from blowing up, right? You could buy a couple three
sets of NiMH batteries, and a charger, before you could buy the lithium
charger. #2 problem is that lithium batteries are 3 volts per cell, so
you
can't do a straight swap in an AA battery pack.

Even using a sophisticated charger, many Radio Control flyers remove their
Lithium battery from the airplane and charge it in a remote location, away
from other people, buildings, cars, etc. - just in case.

Rich S.