Should I Charge My Phone To 80. Keep the phone battery charge between 30-80 to increase its lifespan. But the effort it takes to extend its lifetime might not be worth the hassle.

Charging the device in high ambient temperatures can damage it further. Is better to start charging from 40 and stop at 80 charge level. For charging and discharging the battery likes to be warm.
Hi when I want to extend my phones battery life how should I charge it.
Therefore charging up your phone in that 30 to 80 range keeps the voltage lower and might slightly prolong the batterys lifespan. Battery University stated that the lithium-ion battery in your phone will last longer if you keep it between 65 to 75 charged at all times. Keeping the charge beneath 80 until you. Unlike the nickel batteries used in older phones lithium-ion batteries do best when kept above a 50 percent charge.
