I would also like to point out another warning with RC batteries. Not only do many RC batteries packs not have protection circuits, many RC chargers have settings to change the output voltage for charging packs with more or less cells in series. When you put these two things together you have recipe for a nasty accident.
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Thanks for this; helps my understanding of battery types.
I have Lipo's that I use on my rc car; still paranoid about charging, even with a sack.
So no Lipo's on the audio gear for me.
I have many others Lithium Ion and Nimh that work for now.
Thanks again for the explanation.
Dave