Battery Test - LTE vs HSPA+ vs WiFi

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john_tillman

Senior Member
May 22, 2012
129
19
I saw so much he said, she said about battery life on various threads here. So, I decided to conduct my own tests and measure results. I modeled this test after my typical usage i.e. visit various sites and read news/blogs etc. So, no video/music etc was used.

TEST:
- Load 9 sites one after another. On each site, open 10 links. Wait for the page load to finish loading and hit back to go to home page then load another link. So, a total of 90 different webpages.
- Repeat this test on LTE, HSPA+ and WiFi.
- I tests from same location i.e. from Sheldon's seating location (any fans of the big bang theory?)
- LTE had 2 bars with 10 mbps, HSPA+ had 4 bars with 4 mbps and Full wifi rated at 22 mbps.
- All site were bookmarked and I made sure I open the same link for each test by conducting them immediately after the other.
- Browser used: ICS+. Cleared cache, history and cookies before each run.
- Restarted phone before each run to make sure it is loaded with all apps that bootloader would load.
- Device/ROM - I used rooted stock ROM with extensive debloating/desensing.
- Measured battery usage using 'Badass Battery Plus'
- Screen brightness: 35%

RESULTS:
LTE: 14 mins to load all links and used 6% battery (63% battery used by screen)
HSPA+: 19 mins to load all links and used 8% battery (67% battery used by screen)
WiFi: 12 mins to load all links and used 3% battery (53% battery used by screen)

My Takeaway from results:
- LTE doesn't really drain battery much faster but it accomplishes tasks much faster than HSPA+ thus less screen time is used - saving the battery.
- WiFi is the best performer. It is by far the most efficient of all three.
 

regP

Senior Member
Nov 1, 2010
1,231
171
Bay Area
Nice. Makes complete since that while LTE uses more power thats offset by less time spent downloading. I've only had my phone for 3 days but I have not noticed my battery draining any faster than it did on my Galaxy S 2 or G2x. In fact battery life seems better and my usage habbits have been the same on all 3 devices.
 

Skizzy034

Senior Member
Mar 10, 2010
5,509
1,123
40
Amsterdam, NY
www.facebook.com
I think I've figured out what is causing the most drain. I believe it's the heat. When my phone is in the 80's to the low 90's it's ok but when it hits 98 and above the battery drains fast.

Sent from my HTC One X using XDA
 

john_tillman

Senior Member
May 22, 2012
129
19
I think I've figured out what is causing the most drain. I believe it's the heat. When my phone is in the 80's to the low 90's it's ok but when it hits 98 and above the battery drains fast.

Sent from my HTC One X using XDA

Heat is indeed the enemy of battery life in both short and long term.

Sent from my HTC One X using xda app-developers app
 

MorpheousMarty

Senior Member
Feb 14, 2011
86
30
I think I've figured out what is causing the most drain. I believe it's the heat. When my phone is in the 80's to the low 90's it's ok but when it hits 98 and above the battery drains fast.

Sent from my HTC One X using XDA

Yes, heat represents battery energy usage. There are no mechanical parts using energy, and the radios radiate minimal EM energy. The vast majority of the power used in a device is in resistance of the transistors on the chip, and amplifiers of signals, both of which turn the vast majority of the energy used into heat.
 

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    I saw so much he said, she said about battery life on various threads here. So, I decided to conduct my own tests and measure results. I modeled this test after my typical usage i.e. visit various sites and read news/blogs etc. So, no video/music etc was used.

    TEST:
    - Load 9 sites one after another. On each site, open 10 links. Wait for the page load to finish loading and hit back to go to home page then load another link. So, a total of 90 different webpages.
    - Repeat this test on LTE, HSPA+ and WiFi.
    - I tests from same location i.e. from Sheldon's seating location (any fans of the big bang theory?)
    - LTE had 2 bars with 10 mbps, HSPA+ had 4 bars with 4 mbps and Full wifi rated at 22 mbps.
    - All site were bookmarked and I made sure I open the same link for each test by conducting them immediately after the other.
    - Browser used: ICS+. Cleared cache, history and cookies before each run.
    - Restarted phone before each run to make sure it is loaded with all apps that bootloader would load.
    - Device/ROM - I used rooted stock ROM with extensive debloating/desensing.
    - Measured battery usage using 'Badass Battery Plus'
    - Screen brightness: 35%

    RESULTS:
    LTE: 14 mins to load all links and used 6% battery (63% battery used by screen)
    HSPA+: 19 mins to load all links and used 8% battery (67% battery used by screen)
    WiFi: 12 mins to load all links and used 3% battery (53% battery used by screen)

    My Takeaway from results:
    - LTE doesn't really drain battery much faster but it accomplishes tasks much faster than HSPA+ thus less screen time is used - saving the battery.
    - WiFi is the best performer. It is by far the most efficient of all three.