AirSep FreeStyle 5 Patient Manual page 19

Depending upon the temperature of the AirBelt, 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.
AirBelt does not need to be fully discharged before recharging. It is recommended to charge it after each use.
MN166-1 rev A 11/12
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