I tried using the batteries.com coupon (CJ181). No effect. No error messages or explanation, the price just stays the same as though no coupon has been applied.

Perhaps it has expired.

It isn't working for me either, but it shows that it is valid on the site. I'll find out whats going on and I'll let you know. Thanks Monkfish.

According to the 'Retailmenot' extension of Firefox, these are the available coupons at Batteries.com:

http://www.retailmenot.com/view/batteries.com?utm_source=extension&utm_medium=firefox

Thanks for checking Dan.

That's the same coupon that's listed here on Spoofee.