Install battery how do I hookup battery in schwinn s180 electric scooter

First make sure the scooter is off.
Unscrew and take off the deck
Unplug and remove the old battery pack
Put the new battery pack in and plug it in, using the same connection as the old batteries pack.
Screw the deck on and your done!
Oh, and make sure you give the battery a good charge(the full charging time). The first charge of a battery is the most important one.