470 UF @ 16v
These Happy packs are designed to help to smooth out ripple current which reduce temps to your ESC, Super flex wire used to help with insulation
Reverse polatity protection which save you time and time again,
 
Used and recomended by many - Best money I have ever spent
 
Dimentions - 35mm x 10mm x 15mm - Wire Lenght 90mm