Problem, Possible cause, Solution – AirSep MN126-1 C User Manual
Page 62
 
Problem
Possible Cause
Solution
Battery duration is less
than per specification.
 
 
Note: While charging, battery 
may not initiate a charge. 
Allow unit to cool to operating 
temperature before charging. 
Will initiate in approx. (20 
min).
Note: Whenever storing 
FreeStyle for an extended 
period of time, ensure that the 
battery the state of charge 
(SOC) is not depleted or 
stored at 100%. Both these 
conditions can result in 
unrecoverable capacity loss. 
The recommend SOC is 25% 
to 50% for long-term storage. 
The recommended storage 
temperature is 23º C ± 2º C.
Battery not fully charged.
Battery has been stored in a 
discharged or 100% charged 
state for prolonged period of 
time or stored in a very high 
temperature environment.
Battery reached cycle life.
Ensure that battery 
charges for at least
3½ hours and all (4) LEDs
are lit solid.
Replace battery.
Replace battery.
Unit does not start 
on battery.
Unit temperature has exceeded 
battery operating temperature
5 to 40ºC. 
 
Battery reached cycle life 
Battery is defective 
 
Allow unit to cool
before starting. 
 
 
 
Replace Battery 
 
Battery does not charge.
Unit temperature has exceeded 
battery operating temperature
5 to 40ºC.
Battery is defective.
AC adapter connector is 
defective or contact pin is bent.
Defective AC adapter 
 
 
Circuit Board
Allow battery to cool before
charging.
Replace battery
Replace battery.
Replace AC adapter.
Replace main circuit 
board 
AirSep Corp. — FreeStyle Service Manual 7-3