Ok, after sitting idle overnight (other than hourly weather updates) the phone was at 80% after 12 hours.
I listened to Pandora for an hour & a half and it only dropped 10%.
If you go to buy it from Verizon, don't sign in first. It's normally $39.99 but if you order it outside of your account it's $19.99. With shipping I got it for around $22.
Download G Cloud Backup
for Android and get up to 8GB FREE. Use code [ZETMET] at signup & we'll BOTH earn 200MB more space.