I'm using Samsung Galaxy S4 with Android 4.4.2, for about 5 months.
I've experiences before some problems with battery, like sudden crashes when using apps intensively using graphics, but today the battery started to be discharged very rapidly, 10% an hour, or even more, without device being used. I've found out, that Android System and Android OS are responsible for that carnage. But after restart and charging the phone I've found out, that Exchange Services has also significant part in it.
After browsing internet I've found topis like that: https://code.google.com/p/android/issues/detail?id=37437 suggesting, that Android OS/System battery drainage is connected with Exchange Services. But that topic is very old, and people are writing about older version of Android.
Can this behavior be connected with the linked issue? If so, why it happened now, and not previously? Can the previous crashes of Android be somehow connected with ExchangeServices behavior?
Can I do anything now to prevent at least memory drainage? It renders my phone unusable as mobile device...