The tester applies a 5A load and holds it for 7 seconds to verify that the
protection circuitry does not trip. If it does, then it is a failure. The tester then
applies an 8A load and verifies that the protection circuitry trips within 15ms.
If it doesn't trip within 15ms, then it is considered a failure. It also performs
an impedance (Z) check on the batteries. The battery voltage is measured
with no load then a 3 Ohm load is engaged and the voltage is measured
again. This cycle repeats 5 times to take an average of the computed
resistance. If the average resistance is greater than 170mOhms the battery
fails. The checkmark denotes that this phase of the testing is complete.
(7) ATP