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  • "If it works it could be worthwhile" Could you please elaborate? Laptop batteries only have ~100 - 200 charge/discharge cycles before their charge capacity drops significantly, with every charge/discharge cycle lowering the charge capacity by several mAh; after ~200 cycles, often sitting at ~50% of the original charge capacity. Power management software on a laptop works by cutting the power to the charge circuit while still using the charger to power the laptop (the charger's primary job is as a PSU to power the laptop like any other PSU, with the secondary job of charging the battery)
    – JW0914
    Commented Jun 10 at 12:31