What Does Shallow Charging and Discharging Mean?

1 Answers
KingLee
07/30/25 1:44am
Shallow charging and discharging refers to not charging or discharging the battery to its full capacity, meaning not charging to 100% and not discharging completely. Below is a brief introduction to shallow charging and discharging: When the battery is charged only when it falls below 10% or is completely drained, it is considered over-discharging. When the battery is charged between 20% and 90% and not fully charged to 100%, it is considered shallow charging and discharging. Shallow charging and discharging means not reaching the battery's maximum capacity during charging and discharging, i.e., not charging fully and not discharging completely. Precautions: Do not charge the battery after it is completely drained, as this can affect the battery's lifespan. Avoid using the phone for extended periods while charging; wait until charging is complete before operating the device. Avoid Over-Discharging: Charge the device when it prompts "low battery." If you wait until the device shuts down automatically, the battery has already been over-discharged, which can impact its lifespan. Avoid Over-Charging: When the charger indicates that the battery is fully charged, unplug the charger. Modern chargers usually have an auto-stop feature when fully charged. While leaving the battery connected to the charger for a short time is not a problem, keeping it connected for extended periods can lead to over-charging. This happens because, late at night, when grid voltage rises, the charger may resume charging even after it had stopped, causing over-charging, which can also affect battery lifespan.
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