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C-sized Adapter Shells for AA Battery | 
 enlarge | Brand: Lenmar
Category: CE
List Price: $13.69
Buy New: $2.35
You Save: $11.34 (83%)
New (30)
Rating:  6 reviews
Media: Electronics
Autographed: No
Memorabilia: No
Shipping Weight (lbs): 8
Dimensions (in): 8 x 1 x 5
Legal Disclaimer: Warranty does not cover misuse of product.
MPN: PRO-AA2C
Model: PRO-AA2C
UPC: 029521834376
EAN: 0029521834376
ASIN: B000855034
Availability: Usually ships in 1-2 business days
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| Features:
| • | 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 | | • | 4/pack |
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| Editorial Reviews:
Product Description
LENMAR PROAA2C C-SIZE ADAPTER FOR AA BATTERIES FEATURES THE POWER OF C SIZE CELLS,USING AA CELLS ;and CHARGER; FEATURES SNAP-IN DESIGN FOR EASY INSERTION and;REMOVAL OF RECHARGEABLE AA BATTERIES; USES ANY STANDARD AA SIZE RECHARGEABLE;NIMH BATTERY; CAN BE USED IN A PORTABLE TV, RADIO OR ANY DEVICE;USING C BATTERIES; 1-YEAR WARRANTY
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| Customer Reviews: Read 1 more reviews...
the science behind the fit problem March 4, 2008
16 out of 16 found this review helpful
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.
 great product February 22, 2008
1 out of 1 found this review helpful
This is a terrific product - it's so nice to not have to go looking for a C battery - just pop in the AA (which I always have around) and go!
Awesome Lenmar C-Shell Battery Adapters January 20, 2008
1 out of 1 found this review helpful
I bought about 3 to 4 packs of these Lenmar D-Shell Battery Adapters for my touchless trash cans and emergency items. I love them. We have an emergency closet and had bought alot of Rechargeable AA and AAA batteries. We have alot of items that you can wind up such as Emergency radios and flashlights, but we bought the adapters to convert our AA batteries into D-batteries for backup. We also purchased a few packs of Lenmar C-Shell Battery Adapters for our Electric train and various items. We have saved alot of money by replacing all our regular batteries with rechargeable batteries.
GOD Bless!
Inexpensive way to use rechargeable AA cells for C-cell applications September 9, 2007
20 out of 24 found this review helpful
If you have some power-hungry applications that require C-cells, you can usually save money in the long run by using rechargeable NiMH cells instead of alkaline cells. One approach is to buy a set of AA to C-sized adapter shells, and use rechargeable AA NiMh cells in those. This is the cheapest method because AA NiMH cells typically cost less than ten dollars for a package of four, and you can use low-cost AA charger for them (instead of buying another charger that accepts C-cells).
However, don't expect to get the same operation time as before when you were using alkaline cells. This is because the capacity of a typical NiMH AA cell is only about 2500mAh. In comparison, a typical alkaline C-cell is rated at 8500mAh for low current applications. At higher current, the actual capacity may drop to half. But this is still twice as much as that of a NiMH AA cell. In other words, you can only expect half the operation time after switching to NiMH AA cells.
There are rechargeable NiMH C-cells available with capacity up to 6000mAh. Those cells can out-last alkaline C-cells in large current applications. However, those cells are expensive (around $20 for two) and you need special charger that are designed to charge high capacity C-cells. (Most low-cost chargers, even those that can accept C-cells, cannot fully recharge cells with capacity greater than 3000mAh)
Finally, be carefull not to fall victim to fake C-cells offered by Energizer and Rayovac. Those are just 2500mAh AA cells enclosed in larger C-sized cases. Prices of those fake C-cells are often ridiculously high, even though you still get shorter operation time from those. Plus you need to buy a charger that can accept C-cells.
All things considered, using AA cells in C-sized adapters is still a good approach. Just make sure that you lower your expectation, and DON'T PAY TOO MUCH for those cheap plastic shells.
 Too big October 15, 2006
16 out of 18 found this review helpful
The shells are larger in diameter than regular "C" batteries. These shells do not fit into several of my devices.
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