I have had my Pre 3 for a few months now & the battery performance was really good up until 2 weeks ago. I managed to last a whole day with 30-50% left at the end of a day.
Suddenly 2 weeks ago the battery started draining really quickly & runs out by mid-afternoon. I have made sure the GPS is turned off I use wi-fi where possible, but still it has made no difference. Several re-boots etc & still no difference.
Is it the battery?
Is it the Pre3?
Does any one have any ideas as to what might be the problem & how I can work out how to fix it?