Not sure if Battery eye is any better now . But I found that running Battery Eye reduced my battery life by 20 percent . Which really gave me quite a giggle. The thought that when you are worried about your battery life you install an App to check it and it re-inforces your worry. I get a day out of mine with bluetooth and wifi on all the time and plenty of use. You gotta sleep sometime , So I charge it then . Suits me fine.