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I bought a new battery for my HP Laptop and its not an original one.

When I run windows, battery works absolutely fine giving decent backup.

But on ubuntu laptop turns off suddenly and randomly without any warning. After it tuns off, I cannot turn it on and have to plug in AC power. Battery still has capacity when I check it again after booting again.

I have checked /var/log. It has many files, but I couldn't find anything helpful in them or I don't know what to look for.

Please help me on this

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