Board Thread:Versus Debates/@comment-26958911-20151017135605/@comment-26107879-20151026000743

@Uchiahmasters actually i think you should read the Summoning: Impure World Reincarnation technique on this wiki. It clearly states that Edo's get this ability "A second benefit is the limitless refilling of their diminished chakra reserves that the reincarnated individuals have access to; they can fight eternally and perform ordinarily physically demanding or chakra-intensive jutsu without issue, knowing their current reserves will infinitely refill" so indeed he does have infinite Chakra.