My laptop only turns on when I jumpstart it with the charger and press the power button multiple times

[Servant of the Merciful 786]

My laptop is 10 years old (Acer V5-573). The battery life (that should last around 6 hours) became poor over the past few years and it would die within 2 hours unless I had the charger plugged in. Ever since, I always used the laptop with the charger plugged in. However I recently replaced the battery with a new one and now the laptop is lasting up to 7.5 hours without the charger being plugged in. However the problem I have noticed before and after I replaced the battery, is that my laptop would not turn on when I pressed the power button the first time, even when the battery was 100%. It wou

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