I'm planning to buy 10 pieces of Soshine 3400mah since that is what their minimum order is. ilumn,dx,ebay,fasttect don't ship to Philippines sadly and soshine is probably the only bang for buck 18650 I can get. I'd like to know if they go bad since I'm only planning to use about 4 maybe and that's rarely and maybe just sell the others if I can. I wonder if unused/unopened 18650 go bad, I have searched the net but it says it depends on how much you're using it, storage charge or replace after 1 year or 500 cycles etc. I wonder since sellers can't probably recharge or check the batteries since they're in their packaging prior to selling. What do they if for long periods of time no one is buying their batteries to maintain it?