I own an Android smartphone that I'm very little using (even to phone!), so since I got it (about one year) I use to be notified for charging it only once every other day.
(the only notable service permanently active is probably the wi-fi scanning)
But suddenly, four days ago, I was notified of low level battery about 24 hours after its previous complete charge. The next day I was notified after only 23 hours... and today after only 19 hours!
I'm pretty surprised, not only because this happens suddenly, without having changed anything in my way of using it, but also because looking at the Settings > Battery usage I find something like this:
- Screen: 15%
- Android system: 13%
- Android OS: 7%
- Idle phone: 3%
...and nothing else, so the total is only
I'm pretty surprised because in my mind, depending on how to understand the list meaning:
- If the list presents the consumed parts compared to the whole battery power the total should be equal to
100% - the reported battery state; in the current example, battery state was 13% so the total should be
- Or the total should merely be
100%if the list presents the part of each component compared to the current consumption.
So here are two indissociable questions:
- What might be the cause of the sudden increase of consumption?
- What is the correct interpretation of the battery usage information?
If it'd be helpful: my smartphone is an Alcatel OneTouch Idol 3.
It was recently updated from Lollipop to Marsmallow (6.0.1), but this happened about 2 months before I suddenly face the issue related above.