I'm confused and think some terms might be mixed up... but Juggalo is right, and so is fr4nk1yn.
What I think fr4nk1yn was trying to say, is that lithium ion batteries can accept a charging rate in mA up to their capacity in mAh.
SO: The 1340mAh batteries can accept a charge up to a 1340mA output from the charger. This however is not advised, as this much power into a tiny battery causes major heat issues, and I believe the Diamond even has a high temp shutoff. Ideally you want a charge between half of the mAh (seems a bit slow) and all of it (too much heat) so for us, that's 1 Amp.
500mA = Slow
1000mA = Nice
