I just want to give my opinion on this subject.
I do think that while the rule of selling used kit only is good, I do think that batteries should be an exception as it is easily possible to have spare batteries or ones that you don't need lying around which are not used, such as I have about 30 AA procells from when I used a vlocity which I don't need now. If you have spare batteries or ones that are simply not needed then they are technically new but you can't sell them. If you decide to chuck them in a hopper for 30 seconds to technically make them used then you won't be able to sell them either as nobody would buy used batteries.
So I do think that items such as batteries should be allowed to be sold if they are new as they are an item that will never be bought if they are used.