Useful Life; Lib Check Procedure - Maxair Lib Test For Diminishing Battery Capacity - Maxair CAPR User Instructions

28.3.6 Useful Life

Li-Ion batteries begin aging when they are manufactured - not when you begin using the battery. Lithium-Ion batteries are prone
to aging somewhat rapidly. The useful capacity (Recoverable Capacity) of a Lithium-Ion battery decreases about 10% to 20%
each year. Therefore, Lithium-Ion batteries have a useful aging-service life of approximately four years.
Li-Ion batteries have a useful capacity-service life of 300-500 cycles (one cycle being the time of one full use from a full charge).
Therefore, the recommended useful life expectancy, or replacement schedule, for a Li-Ion battery is after four years or 300-500
discharge cycles, whichever occurs first.

28.3.7 LIB Check Procedure - MAXAIR LIB Test for Diminishing Battery Capacity

NOTE
A MAXAIR helmet and MAXAIR charger are required to perform this basic battery test. The helmet and power cord
must be in good working order. Set the helmet Air Flow Switch to Low for the test.
CAUTION
If the LIB performs in one of the "Suspect LIB" categories below, discontinue using it and replace that LIB as soon as
possible.
Case 1: The LIB has been connected to a charger and the charger green LED is on.
Procedure: Unplug the LIB from the charger and plug the helmet power cord to the LIB. Allow the helmet to settle for about 10
seconds.
Good LIB: The helmet runs with 3 or 2 green indicator lights on.
Suspect LIB: The helmet runs with only 1 green indicator light on.
Suspect LIB: The helmet runs with the red indicator light on.
Suspect LIB: The helmet doesn't run.
Case 2: The LIB has been in storage.
Procedure: Plug the helmet power cord to the LIB to be tested. Allow the helmet to settle for about 10 seconds.
Good LIB: The helmet runs with 3, 2 or 1 green indicator light on.
Suspect LIB: The helmet runs with the red indicator light on.
Suspect LIB: The helmet doesn't run.
Case 3: The LIB is connected to the MAXAIR Charger.
Good LIB: the LIB is felt to be about room temperature.
Suspect LIB: the LIB is warm or hot to the touch.
Page 109 P/N 03521015 Rev Q