I dunno much about chargers. I have an expensive Hyperion model.
I wouldn't bother with an expensive charger or battery.
A GensAce 10,000 mAh battery will cost you $60. I have over a dozen GensAce packs, and I love them, but my next battery will be the SPC LiPo I mentioned before.
I would rather have two 5,000 mAh batteries than one 10,000. Why? After using up a 5,000 pack it's a good idea to give the RC a short rest and inspection. You know, an ounce of prevention is worth a pound of cure. Also, you can charge one battery while running your RC with the other. With one battery, you have a long down time. When I want to run my RCs, I don't want to have to wait! I'm impatient. Also, should a battery fail, you are not without power for your RC.
Lastly, once you go LiPo, you probably will never use your NiMH battery again.
RC addict and loving it
somewhere near Grass Valley, CA --- let's bash