I purchased a Jr Spektrum DX7; I need a few of the 6V 1500mAh NiMH batteries for the AR7000 reciever. I may not need that specific battery, but thats what I want. I can't find them anywhere. I see every other types of battery out there, but not this exact one. I see 6V batteries, but the amps are not the same. This is making me friggin nuts. Where do I get them?