I have 2 Note 3's; both had great battery life, once upon a time. Now, battery life is far worse, on both. I went nuts for months trying to figure out what the issue was - installing Wakelock detector, and Gsam Battery monitor. I couldn't see anything unusual in either app, until I looked a bit more carefully.
Gasm reports battery drain from screen usage in wake and sleep states. I noticed yesterday that the screen OFF state reported the screen draining battery at a rate of more than screen ON. It was like 18% vs 12% screen OFF /screen ON. That gave me a clue -
To test, I set my home and lock screen to one of the Samsung stock wallpapers. It weighs in at about 30K at exactly 1080 x 1920 pixels. My overnight drain in night mode went from 15% to 1% (WiFi OFF, Mobile data OFF, Bluetooth OFF, GPS OFF, Sync OFF, Phone radio ON)
My previous wallpaper was a black homemade wallpaper, which I made by covering the camera lens and snapping a picture (fast and easy). That weighed in at 2.3 MB and 13 megapixels, with a screen size much, much larger than 1080 x 1920. It was killing my battery, creating wake states with the screen off and eating even more battery with the screen on. I had no clue.
I opened Windows Paint, created a simple black screen using the fill tool and made it exactly 1080 x 1920. It weighs in at 30K. It now drains like the stock Samsung wallpaper does.
I believe that many people use the camera to take pictures and use those pictures as home and lock screens. There are also a number of people reporting poor battery life on their Note 3's. I wonder if those people are having the same issues as I had, not realizing why?
Gasm reports battery drain from screen usage in wake and sleep states. I noticed yesterday that the screen OFF state reported the screen draining battery at a rate of more than screen ON. It was like 18% vs 12% screen OFF /screen ON. That gave me a clue -
To test, I set my home and lock screen to one of the Samsung stock wallpapers. It weighs in at about 30K at exactly 1080 x 1920 pixels. My overnight drain in night mode went from 15% to 1% (WiFi OFF, Mobile data OFF, Bluetooth OFF, GPS OFF, Sync OFF, Phone radio ON)
My previous wallpaper was a black homemade wallpaper, which I made by covering the camera lens and snapping a picture (fast and easy). That weighed in at 2.3 MB and 13 megapixels, with a screen size much, much larger than 1080 x 1920. It was killing my battery, creating wake states with the screen off and eating even more battery with the screen on. I had no clue.
I opened Windows Paint, created a simple black screen using the fill tool and made it exactly 1080 x 1920. It weighs in at 30K. It now drains like the stock Samsung wallpaper does.
I believe that many people use the camera to take pictures and use those pictures as home and lock screens. There are also a number of people reporting poor battery life on their Note 3's. I wonder if those people are having the same issues as I had, not realizing why?
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