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Windows 7: Laptop battery draining when laptop is shut down

25 Sep 2015   #11
UsernameIssues

W7 Pro SP1 64bit
 
 

Removing the battery should not be required.

When plugged in, the charge should cycle (keep things moving).
The chips that control the charging of the battery should...
...allow the battery to charge fully
...stop the charge automatically
...allow the battery to discharge to ~90%
...start the charge again.

The last couple of phones that I had used this "keep things moving" method. Some people disagree with that so much that they rewrote that part of the OS. You could root the phone, install their version of the OS and have it never stop charging when plugged in.

On Dell laptops, you can see this charge cycling via the battery charging lights - even when the laptop is off. I'm not sure what HP does with its lights, but I would bet that the charge automatically cycles. I don't know of a single chip manufacturer that makes "charging chips" that don't cycle the power.


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 Laptop battery draining when laptop is shut down




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