Hello all ive recently bought an iPhone 5 used from a colleague who advised me it had a new battery under the recall. Now, the reason I bought it was for a friend. I used it for a whilst until my carrier unlocked it. During this time I set it up as a new phone and it ran fine, was down to 20% or so after an 16 hour day. That's good enough for me! Once it was unlocked I erased all content and settings before restoring my friends 5c backup to it via iTunes. This went fine but then problems started. The battery just won't hold a charge. Full at 7:30am it's below 20% by 11am. I did a reset all settings, no difference. I've forced it to reboot, nothing. Battery usage says Facebook is using 45%+ over last 24 hours. I'm stumped, I guess it's a bad restore. Would you recommend I get a restore from iCloud or set up as a new phone (last resort). She doesn't want to lose her stuff as a new phone setup would do. Thanks!