Thank you again.My buddy called me back. He said DO NOT mix the LG's and the Imren's. Different discharge rates. If you were able to get the 3 - 2500mah's together, you're probably fine but, from what you described, they're a "re-wrap". Assuming they're "new", it's good that they're paired together for the rx200. As far as charging goes, the rx200 charges "unbalanced", as to say, it may say/indicate a full charge but, may not have completely. Best to use the stand alone charger. For the LG's and Imren's you have, keep them with the IPV34li.
I'll go hunting tomorrow for batteries I am 100% they'll be cheap ones but at least I'll get 3 of a kind...