So I recently bought a new honor magic 5 pro. My last phone the Huawei p20 pro was around 5 years old and started to show significantly less battery life. So I want to use this phone again for 5 years. But now I wonder should I keep the battery around 50% (65-35) and charge twice as often or should I 80-20 and charge once every two days? Is there any science that proves one is better than the other? Thank you for your information and sources.

  • fmstratEnglish
    2•1 year ago

    I’m posting this on a near 5 year old device right now. Original battery. Most of it’s life it has been on a wireless charger at 100%. Anecdotal, but the lack of daily charge cycles has made the battery last pretty well IMO.

    Seems backed up by science:

    Similar to a mechanical device that wears out faster with heavy use, the depth of discharge (DoD) determines the cycle count of the battery. The smaller the discharge (low DoD), the longer the battery will last. If at all possible, avoid full discharges and charge the battery more often between uses. Partial discharge on Li-ion is fine. There is no memory and the battery does not need periodic full discharge cycles to prolong life.

    https://batteryuniversity.com/article/bu-808-how-to-prolong-lithium-based-batteries