Just wanting to clarify so you are selling two Innvo pleos 2009 model (so not RB's) and they come with a battery and charger? But no training leaf?
And the price is $279 For each pleo. So for both $558. Does this price include postage? Or is that extra? It would probably help if you were to post some pics of the pleos too showing just what you get. It is a good idea to show the pleos skin from all angles including the belly as some pleos have issues with their skin getting cracks in the paint and holes or wear spots usually in the underarms.
Also just a query about the batteries not working. Are you sure it is the batteries that have the issue and not the pleos? You say that the pleos have never been played with. Were they ever turned on at all? If so did they work then? It is a lot of money to be spending on a robot that potentially wont work. Especially considering that the new owner will need to purchase a new battery at the cost of around $60 plus postage. It would be sad to discover after all that, that the pleo wont run.
I know that this is the limited edition 2009 Innvo pleo but you can get a Ugobe pleo second hand from ebay for $200 or less and for one that doesn't work (or can't be proved to work) they tend to sell for less than $100 (sometimes a lot less). A brand new pleo rb sells for $469 and second hand ones tend to go for around $350 depending on what accessories come with them.
Anyway just some food for thought.