C-sized Adapter Shells for AA Battery

Product Details

Product Dimensions: 1.8 x 5 x 4.2 inches ; 2.1 ounces
Shipping Weight: 1 pounds (View shipping rates and policies)
Shipping: This item is also available for shipping to select countries outside the U.S.
ASIN: B000855034
Item model number: PRO-AA2C

Product Description

FEATURES THE POWER OF C SIZE CELLSUSING AA CELLS ; CHARGER FEATURES SNAP-IN DESIGN FOR EASY INSERTION ;REMOVAL OF RECHARGEABLE AA BATTERIES USES ANY STANDARD AA SIZE RECHARGEABLENIMH BATTERY CAN BE USED IN A PORTABLE TV RADIO OR ANY DEVICEUSING C BATTERIES 1-YEAR WARRANTY

Technical Details

Uses any AA NiMH battery and charger to achieve C power
Snap-in design for easy insertion/removal
Use in any device using C batteries

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.