Re: Samsung galaxy s5 battery problems
Yep, % Time without Signal means the percent of Cell Standby time that the cell radio can't find any signal at all. This can lead to significant battery drain. And that doesn't count the time when signal is present but very weak--which also leads to battery drain. You can get an idea of how strong your signal has been by tapping on the battery graph to get the fullscreen graph. You'll see a bar at the bottom signifying cell signal, and anything besides green is suboptimal.
What provider do you have? Some providers have worse coverage than others, obviously, so if your home or work is in an area of poor coverage, you may have to consider switching providers, if it's important to you. Providers often offer signal boosters for home, if you have poor reception there--however, signal boosters usually only activate when you actually make a call. When the phone is idle, the signal remains low. Call your provider for more information.
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