25 - 45 minutes
Repair went smooth. My second battery for this old Ipod.
My son Got it used from grandma in 2006. Got stolen from his car and found by police. Replaced battery in 2010, went smooth. My wife uses it for massage practice. Replaced battery this time, no problems, kept all her music in-tacked.
Don't be afraid. You'll be proud of yourself for saving 100.00 or even 200.00 bucks
I Recommend repairing the old I pods. They're really well made, and IFIXIT has all the parts and instructions.