I always have to login to google again? Everytime my battery ends, and the phone turns off, I'll have to login to google again? Isn't there a way to keep my login information even if the mobile restarts?

By the way, I use double check login, but after the first confirmation with the sms code, it should not ask for the login again.
It stopped to ask my password after about 4 reboots, or 4 days. I don't know what was causing the problem.