It uses 2 cr2032 batteries which are 3/$1 at the Dollar Store. They last about 30 hours. Much cheaper option than the cover and can be used with the OP's 2 readers what with being clipon.
In North America dollar stores are around very corner, not sure if that's the case elsewhere though...
Last edited by Cdesja5; 05-21-2012 at 11:56 AM.
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