C-sized Adapter Shells for AA Battery Review

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(More customer reviews)I also ran into fit problems using these adapters. My AA rechargeables fit nicely into these shells, but the shells were too fat to fit into my camping lantern which uses 4 C cells. Saddened, all I could do was get out my trusty micrometer and begin to take data...
The Lenmar shells (at least the ones I bought) measured 1.02" in diameter. A Energizer battery measured a slim 0.985" and a Duracell measured 0.99". An Eneloop C adapter measured 0.98" in diameter. So the Lenmar adapters are definitely fat compared to the competition.
But here's where Paul Harvey would say "now for the rest of the story...". When I checked the ANSI standard for C batteries, I found the spec allows diameters between 0.98" and 1.03". So the Lenmar shells are within spec. The guilty item is, in fact, my camping light. (This is the type of insight you get when hard science types take to writing these reviews).
What to do? If your batteries will be packed shoulder-to-shoulder in a battery compartment with a tight squeeze, you're probably going to have to pony up for some (pricey) Eneloop upsizers. Otherwise I think you'll be happy with these Lenmar adapters. Maybe you can buy some of each and that way you can power any device while saving the environment and some $$$ at the same time.

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If you're tired of purchasing C-size batteries for your portable TV or radio, when you have AA batteries on hand, you need the PROAA2C from Lenmar. These C-size shells let you snap in AA batteries (sold separately) and use them in your portable TV, radio, or flashlight that uses C batteries.

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