AirSep MN126-1 C - Manual (Page 15)

AirSep Corp. — FreeStyle Service Manual 2-3
2.3.5 Battery Charging
To check the level of charge of the battery, press the BATT button on the keypad. The
battery gauge/indicator(s) illuminate to indicate the level of battery charge (25-100%).
To charge the FreeStyle’s internal battery:
§ Connect its Universal AC or / DC (auto) power supply into the
unit’s power receptacle located on the right side of the FreeStyle
unit, and the other end to its proper AC or DC power outlet.
§ The FreeStyle internal battery will completely charge from a fully
depleted state in approximately 3½ hours.
§ While charging a fully discharged battery, initially the 25% LED
will start blinking rapidly for a few minutes, then start to blink at a
slower rate (½ second).
§ The LED will continue to blink until a 25% capacity is reached. The
LED will then turn solid.
§ Each of the four LEDs, 25-100%, will blink as stated above, then
turn solid when they reach their capacity.
§ Once all LEDs illuminate solid, the battery is fully charged and the
LEDs will remain on solid for approximately 1 ½ hours, then all
four LEDs will turn off.
§ If the Universal AC / DC power supply is not connected, the LEDs will turn of within
5 seconds.
Depending upon the temperature of the FreeStyle battery, it can take several minutes for the charging cycle to
start after connecting to power. This is a normal condition and is intended for safe charging.
The lithium ion rechargeable battery that is used in the FreeStyle unit does not need
to be fully depleted before recharging. It is recommended to charge the battery
regardless of the battery’s capacity level after use.
The battery will charge when the
unit is off as well as while the unit is running off the AC or DC power supply.
Lithium batteries may permanently lose capacity when exposed to extremely hot
temperatures with the batteries fully charged or completely depleted. For extended storage,
it is recommended that batteries be charged 25 to 50% and remain within a temperature
range of 73 F (23 C).