iPod shuts down with a full battery

iPod shuts down with a full battery

When I try to power up it shows the Apple and then a battery with a triangle with an exclamation(I think). But after a couple of minutes, it comes back on with a fully charged battery and plays sometimes more than an hour. Using the repair guide, I removed, checked and reseated the ribbon cable to the battery but it shut down again.

answers:

You need a new battery, if you have a 30 gig get this one and if you have 60/80 gig get this one.