you can take normal AA or AAA or regular usage batteries. Not necessarily Car batteries as they contain acids and stuff.
Yes, but only if it is not as heavy and not as big.
I am pretty sure you can, because many people bring gameboys and cameras... etc.
and those have batteries...
In small quantities, yes. Your mobile phone most likely has a rechargeable battery too.
yes i believe you can :)
Yes you can
No
You can buy inexpensive rc airplane batteries online at www.all-battery.com/rcairplanebatteries.aspx. This is a great store to find all cheap batteries online.
YES you can bring them
No
Yes
no but you can bring your own
Yes
no
no
Yes you can.
no
yes