I was wondering if you can use any kind of triple A rechargable batteries on the Spade, like all the ones you see at places like Best Buy or Radio Shack, or does it have to be the ones you can only find on mod e-cig websites? Also, can you use ones with a different mAh? My Spade came with 2 triple AAA sized batteries that are 600mAh, so can I use 800mAh? And last question: Can you use any kind of rechargable battery chargers?