Assertion: alternator's battery | /r/HasProperty | good
Facets:
Source sentences:
text: If the voltage displayed is under 13.8 and the battery is good, the alternator is undercharging.
text: Make sure the battery is good.
text: The same thing goes for the battery; a bad alternator can be masked by a good battery for a while, but alternator can actually cook the battery, or drain it, depending on the failure, leaving you to replace both components.
text: A worn-out alternator ruins a good battery if you don't replace it quickly.