Manually Switching out of 4G

I just switched from a Moto Droid RAZR Maxx to the Galaxy S4. I had an app that brought me to a phone setting that allowed me to select CDMA vs. LTE frin a drop down list so I could force the phone into a slower speed network to save battery life. That App ( LTE Setting) does not work on the Samsung S4. That app brought me to s android screen that started with the IMEI number, Phone Number, and a long list of other settings. The one called Set preferred network type has a pull down list of about 15 different settings. How do I get to this on the Galaxy S4?

Accepted answers

The_prof

90% is screen, nothing else significant. Yesterday at the movies my phone in the holster got very hot and went from 90% battery to 50 % in 90 minutes. I wonder if the holster caused the screen to stay on with the power switch facing down? I'll have to make sure it always faces up. I found a thread about apps that allow you to shut off LTD and use CDMA but no of them work. I'll keep searching.

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Ann154

It might not be possible with the Galaxy S4 especially if the manufacturer didn't include the code to allow you to access that area of the phone settings.

I didn't have an issue with battery life on the S4 I have used.

The_prof

I seem to be using up battery power too quickly, moderate use seems to drain the battery in 4-5 hours with few phone calls. I shut the screen off after use and use wifi when available. I also shut off wifi when not available.

Ann154

The_prof wrote:
I seem to be using up battery power too quickly, moderate use seems to drain the battery in 4-5 hours with few phone calls. I shut the screen off after use and use wifi when available. I also shut off wifi when not available.

So what does the battery usage graphic tell what is using the battery?

The_prof