The "battery problem" was mainly something encountered by 3G owners that upgraded to the 3GS and used the old 3G backup while setting up the new device; setting up as a new phone or performing a restore generally solved the problem.
PLEASE READ: To register, turn off your VPN (iPhone users- disable iCloud); you can re-enable the VPN after registration. You must maintain an active email address on your account: disposable email addresses cannot be used to register.