Have had one of those for many, many years. Always does the job. I replaced the batteries in mine about 10 years ago, they are just rechargeable C cells, and need to do it again. the only issue is I used to be able to get the batteries at Radio Shack, but no more. I guess I'm just too lazy to order them online, as I do with many, many other purchases.
OK, you motivated me, found some on ebay for $3.87 delivered- unfortunately from China - but the price was right. Looked like all of the batteries were shipped from Hong Kong or it's near environs. Should show up by August...
[this post was last edited: 7/3/2012-02:23]