Zenfone 5: Is it good to use with a 3rd party battery saving app?

I'm finding the battery life unsatisfactory. If I were to install a 3rd party battery saving app would it conflict with the Asus Android OS?

If not, are there any suggestions as to which is the best one to use?

Sent from my Nexus 7 using XDA Free mobile app

Xperia contacts issue, contacts missing even after saving

So recently I found this issue

I save the contact, then it's nowhere
I tried all settings in contact its still persists

The contact is saved
Because when I manually enter the number and press call I can see the contact name

Any ideas

.232
D6503

[Q] power saving mode in GT-S7562

Power Saving Mode Haven't in S dous

My phone is galaxy gt-s7562
my 4n haven't power saving mode in settings menu it's hidden or something happend.but i was decompiled SecSettings.apk. power saving mode have setting header.xml
what happen power saving mode in my phone?
i need to enable power saving mode.pls anyone can help me...:confused::confused::confused:

[Q] power saving mode in GT-S7562

Power Saving Mode Haven't in S dous

My phone is galaxy gt-s7562
my 4n haven't power saving mode in settings menu it's hidden or something happend.but i was decompiled SecSettings.apk. power saving mode have setting header.xml
what happen power saving mode in my phone?:confused:
i need to enable power saving mode.pls anyone can help me...:confused::confused: