Troubleshooting steps we've done are that computer runs on AC power whether or not battery is in. Computer does not run without AC power cord.
Windows Power manager sees when the battery is in, as do the system LED battery indicators.
We don't have a 2nd battery to test in the computer and don't have a 2nd computer to test this battery in, though may find a friend who has one or the other in the next few days.--
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