Well if you don't want to buy lots of 50 from the guy he sells smaller lots.
http://www.ebay.com/itm/Lot-of-15x-ER14250M-3-6V-1-2-AA-Lithium-Battery-with-LED-light-/171098716663?pt=LH_DefaultDomain_0&hash=item27d64739f7
15x for 16bucks free shipping.
I was thinking about including them free in re-caped main boards.
http://www.ebay.com/itm/Lot-of-15x-ER14250M-3-6V-1-2-AA-Lithium-Battery-with-LED-light-/171098716663?pt=LH_DefaultDomain_0&hash=item27d64739f7
15x for 16bucks free shipping.
I was thinking about including them free in re-caped main boards.