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Please remove the battery
and check the contacts to which it connects to laptop
i checked the connections and could not find any thing unsual, i suspect the problem is either sofware related or in the connections are not working, i have no way of verifying why the laptop is not reading the battery. checking the connections does not illuminate much of an answer as i have no way to verify the connection is a problem, this is why i am looking for help. What else might be the problem?
the motherboard connector inside the battery connects to laptop is faulty
you can follow above manual to disassemble the laptop to see anything from battery connector is faulty or not