What To Do When Your Iphone Battery Health Is Low. Compared with older generations of battery technology lithium-ion batteries charge faster last longer and have a higher power density giving more battery life in a lighter package. 77 is actually very low it means your iPhone battery is operating at 77 efficiency you probably need to change the battery.

At the top you will see an option called Restore iPhone. Schedule an Appointment to get your Apple device serviced or repaired today. To access the tool go to Settings Battery Battery Health.
What is Occurring is Typical.
Enable Low Power Mode. Why does battery health of iPhone drop2. Answer 1 of 4. At the top you will see an option called Restore iPhone.

