battery pack for super cub
 

hey whats up all? i'm new to this forum and just have a question. i have a hobby zone super cub. i wanted to make my own battery pack. right now i just have the stock battery pack. it is a 7 cell 8.4v 1000 mah. i want to make an 8 cell with i higher mah. what would everyone recomend? do i need to get the 2/3A size cells? whats the highest mah i should go? and... will my stock charger be able to charge an 8 cell battery without a problem? thanks for the input.