David H. Lipman wrote:

I suggest using Lithium AA batteries. They last *much* longer. They are just not
rechargeable.
Radio Shack and Sears sells them.

This unit will run 18 hours on four AA NiMh batteries, they recharge in
1 hour, can be recharged 1,000 times, and cost me about 80 cents a
piece. (that's less than good Alkilines) In other words, I will never
have to replace them in this unit.

--
Rodney Long,
Inventor of the Boomerang Fishing Pro. , Straight Up Hooks ,
Straight Up Lures, Mojo's Rock Hopper & Rig Saver weights,
and the EZKnot http://www.ezknot.com