Hi khnorris,
Welcome to the Apple (user-to-user) Community.
Congratulations on returning your iPad with clickwheel to use !
Re: How to charge my fifth-generation 60GB iPod with clickwheel?
With no experience of iPods myself, am wondering if the info. below can help answer your questions:
First: To identify your iPod type by it's model number:
How to:Identify your iPod model - Apple Support
Then: On this (link below) web page : you can choose chargers in the left column,
and then choose your iPod type by scrolling down underneath that,
to see the compatible chargers Apple recommends displayed.
Power & Cables - All Accessories - Apple
More charging info:
If your iPhone or iPod touch won't charge - Apple Support
More support if needed:
iPod support webpage (info / support / contact:
https://support.apple.com/ipod-touch?&cid=acs::fm-ituneshelp_ipod
All the best :-)