My older (several years) Moto X will sometimes go a (reasonably) long time on a battery charge (either at home or on the road) and at other times will drain exceptionally quickly (whether at home or on the road). Last night it went from 100% in the evening to 3% by morning, sitting on the counter. What might I look for in this inconsistent battery drain issue?
You can access Settings/Battery and this will show you each process or App and its % of the battery drain since last charge. By doing a ‘long press’ on any particular one additional data is available. Sometimes this can help point out the culprit. Also I would suggest a Clear Cache and follow the instructions to do both System and App.