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hmascience - 2008-09-08 2:32 PM
Well, Rich Hawley is definitely the expert on this model.
From his website, hpcnec.com, it looks like the main batteries are just plain ol' AA batteries. The backup is a CR2032 lithium watch battery, which is not a rechargable variant.
At this time, barring leakage damage, all the batteries are long dead.
Due to the chance of leakage, I guess I should wear rubber gloves and lay out a garbage bag to protect the surface I set the 700 on. Agree?