ZOLL AutoPulse Rev C - Manual (Page 22)

Page 4-4 P/N. 10762-001 Rev. 8
Battery Charger User Guide
4.2 Understanding Test-Cycles
A test-cycle measures the Battery’s charge holding capability by cycling the Battery through a charge-
discharge-recharge sequence. Batteries with a high charge holding capability pass the test cycle and
remain available for continued use. Batteries that no longer accept a charge will fail the test-cycle and
must be replaced as they can no longer be used in the AutoPulse System.
Note: To maintain a Battery’s performance and optimize its life, perform a test-cycle on it each
month.
The Battery Charger will automatically perform a test-cycle:
• Every 10th charge/discharge cycle.
• When the Battery Charger detects that the Battery has been severely discharged (no status LEDs will
illuminate when you press the Battery’s Status Check button).
Test-cycles may be performed more frequently to evaluate the health of the Battery by pressing the Start
Test button on the Battery Charger’s Control Panel. A full test-cycle typically takes about 10 hours, but
its length depends on factors such as ambient temperature and prior charge status.
Note: Do not remove a Battery during a test-cycle or the Battery’s runtime will be unknown.
Removing a Battery during a test-cycle may cause the Battery Charger to automatically enter
a test-cycle mode the next time a Battery is inserted into the Battery Charger.
At the end of one full test-cycle, if the Battery Charger’s TEST (amber) LED remains illuminated, the
Battery Charger has determined that the Battery’s charge capacity remains compromised. In an attempt
to restore the Battery, the Battery Charger will perform a second test-cycle (another six hours). If the
Battery Charger’s TEST LED remains illuminated, the Battery Charger will attempt to perform a third
test-cycle (another six hours). Following the third test-cycle, the Battery will either be ready for
operation (green READY LED illuminated) or the Battery will have failed the test-cycle and must be
replaced (red FAIL LED illuminated).
A Battery will fail a test-cycle following 100 charge-discharge cycles.
Note: Discontinue use of any failed Battery as it will no longer hold an appropriate charge.
Dispose of it properly. Refer to Section 5.2.3, “Disposing of Nickel-Metal Hydride
Batteries”.