Battery duration

[snk123]

I bought my Xperia E3, on sept 14.for the past 2 week,my phone does not hav a long battery duration.when i connect to mobile data(GSM),within 3to 4 hrs phone drops from 100% to 35% ....pls give a solution. i  use whatsapp only in my phone. Model :D2202 thanks in advance. 

[_alexdon_]

Do you use WCDMA (3G) or GSM (2G) in network modes?

[Uliwooly]

Settings > about phone > status > signal strength, what do you see there?

[Jake-SonyXperia]

Hi snk123,

Welcome to the community! Since you're new please be sure that you have checked out our Discussion guidelines.

You may also want to check the Power Management section, this will shed some light on the expenditure of the battery.

Menu > Settings > Power Management > Battery usage

[snk123]

i use 2G network always....

[snk123]

Signal Strength-79dBm 20asu

[Jake-SonyXperia]

What are you getting from the Battery Usage info? is this showing what service is running the battery down?

[Prachurjya]

Go to Settings > apps > all > eco mode controller > clear cache > force stop then switch off your device. Fully charge the mobile. Its better to switch off the device before charging.

[snk123]

still problem continues.....any1 ps help.....and after updating to 4.4.4,wifi turns On very slowly.....and ever 3 minutes battery drain by 1%.....any1 pls help....thanks in advance.

[Jake-SonyXperia]

Why don't you try a backup of content and then attempt a software repair on the device, this could simply be a bad installation.

Backup instructions

Software repair instructions:

1. Before you start you have to download the PC Companion software from PC Companion
and install it on your PC.
2. Once installed on your PC, double-click the PC Companion icon on your desktop to start the update.
Note! For some models you will be prompted to do a backup prior to the update and then restore.
3. Install and open PC Companion then select Support Zone.
4. Phone Software Update.
5. Start.
6. Repair Phone
7. Continue
8. Accept data removal
9. Next
10. Wait for prepare
11. Select Phone
12. Follow the connection steps