I don't understand if you guys at auto zone are just not trained in battery testing or if you guys just to care enough to inform you customers the truth about batteries. I understand you are in business to sell batteries.
Please stop lying to your customers. If a battery is in the wheel well of a car, you cant test the battery from the jump post. If a battery is 12.2 volts that doesn't make it a bad battery. Stop telling people that their battery is bad if the battery isn't fully charged.
Any test you do to a battery that isn't fully charged will give you a fail report.
THIS DOESNT MAKE IT A BAD BATTERY.