Tried Apple support who give me stock steps to try but wondered if anyone could help.
1) After drained battery, iPhone will charge to 35% in 30 minutes (far short of fast charge stats)
2) I am using official 20W Apple charger and official USB-C to lightening cable
3) I turn off 'Optimised Battery Charging' when testing speed
4) I turn off App refresh when testing speed
5) Battery Health is 99%
6) I have restored iPhone and tested as a new phone (no backup)
I suspect this might stump most people but there is one thing I read which someone may be able to clarify. Apparently, if you use a charger who wattage is below that of the phone, it will revert to standard charging. My iPhone is 27W and the charger is 20W. I have ordered a 30W to test if this is the case but as always, people on here are usually far more knowledgeable than Apple support.
Thanks for any guidance
1) After drained battery, iPhone will charge to 35% in 30 minutes (far short of fast charge stats)
2) I am using official 20W Apple charger and official USB-C to lightening cable
3) I turn off 'Optimised Battery Charging' when testing speed
4) I turn off App refresh when testing speed
5) Battery Health is 99%
6) I have restored iPhone and tested as a new phone (no backup)
I suspect this might stump most people but there is one thing I read which someone may be able to clarify. Apparently, if you use a charger who wattage is below that of the phone, it will revert to standard charging. My iPhone is 27W and the charger is 20W. I have ordered a 30W to test if this is the case but as always, people on here are usually far more knowledgeable than Apple support.
Thanks for any guidance