New battery has way higher full charge capacity than design capacity

Nexed_
Nexed_ Member Posts: 32 Troubleshooter
edited March 2022 in Predator Laptops
New battery has 54 720 mWh design capacity and full charge capacity is 57 638 mWh. New battery is a substitute. It happens that charging light blinks simmilar to when battery is on 10% tho it's on 100%
It stops blinking when I unplug it and let it drop to 54 720 mWh (design capacity). I'm not sure but it also sometimes drops to 97%. When it's blinking it just stops charging tho windows shows it is charging. It just feels like battery is okay(?) but it just blocks charging like it wants to drop to design capacity.
I don't know if it's normal so I just want answer is it ok or what to do.

Answers

  • Sharanji
    Sharanji ACE Posts: 4,328 Pathfinder
    @Nexed_

    There’s always tolerances in manufactured stuff. “Design capacity” is the total energy storage that the battery was designed to have. Newly manufactured batteries should have a capacity very near to their “design capacity.” Over time its capacity will start to drop. 
    It really depends on the as-new capacity, rather than the design capacity. There is normally quite a bit of variation in the actual new capacity of batteries and often they don’t quite meet the manufacturer's specifications. Also, you have to consider the way you are using it. If you have a heavier than normal load, the measured capacity may be slightly low. Overall I’d suggest it is slightly down, but not enough to cause concern. Batteries are usually rated to 80% of their initial capacity, so can still be quite usable well beyond this. However, as the capacity decreases, the internal resistance will increase, so the ability to drive heavy loads decreases.
    Depending on the temperature, the number of recharges, rate of charges, rate of discharges, number and severity of over discharges, and average charge state throughout the battery’s life, its capacity will start to fall below the battery’s design capacity. Once it reaches 80%, it’s typically considered to be at end of life.
    If the capacity when new is high, then be thankful.

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