Camera Flash Battery Pack Not Bad At All! How Many MA Can A Coiled Phone Cord Handle From A 6v Battery?

How many mA can a coiled phone cord handle from a 6v battery? - camera flash battery pack not bad at all!

I am building a package of 6V sealed lead acid battery that provides power to a camera flash to offer old. I would use a spiral cable, because, until all is clean. Telephone cables are cheap and great, but do not want to cause a risk of overload and short circuit wire.