I’ve just got my new Fairphone and am so far disappointed with the battery life. It is only holding charge for about 3/4 of a day. It came partially charged and I am wondering if it needed a full charge then full discharge several times for the battery to be most effective. Can only assume battery life will decrease over time so perhaps I need a replacement one? Can people tell me how long their phone usually lasts with moderate use?
3/4 of a day is not much for a fairphone if you use it moderately.
since i never had battery problems with my fp - it lasts well over a day, so i never even got below 10% when I charge every night - I can’t tell you much about it, but on the forum there are many posts like this one; you might find a solution there. If not you should contact support
Without usage other than being connected to the cellphone network (eg. no wifi, no data, screen off), I have gotten 2.5 days for 50% of battery, but that’s basically doing nothing but being reachable.
Things that you can do to stretch battery life if
remove data syncing
remove location access
check the CPU’s occupation using something like OSMonitor
check the number and length of CPU/screen wake locks and timers using Wakelock detector.
As @paulakreuzer said, problems with the battery are sadly relativly common with Fairphones. Actually a suprisingly high number of people has reported bloated batteries. These are a danger and can be a reason for bad battery life. Please check your battery and contact support - include a picture i guess - if you have any concerns you might be affected by this.
On the other hand, you are right: It often takes some days (-charging-cycles) for a battery reach full performance, so maybe your battery life will get better in the next days.
i use mine for loadsa texts + full length song as text notification, reading news and weather twice daily, local phone calls, interactive screen saver, dictionary and can get two days out of a charge. it took a week before it fully held that charge when i first got it though. hope it gets better for you