Xantrex XPower 400R Owner's Manual page 7

Important Safety Instructions
WARNING: Fire hazard
The jump-start feature is designed for short term operation only—
less than 4 seconds. Operating the jump-start feature for more than
4 seconds may cause damage to the unit. Allow the XPower
Powerpack to cool down for at least 3 minutes after each jump-
start.
WARNING: Risk of explosion, fire or burns
The battery terminals exposed at the Jump-Start Cable Port have
enough energy present to cause a spark, creating an explosion
hazard, or to cause burns if a metal object contacts both terminals.
Always clip the plastic guard over the Port when not in use.
WARNING: Fire hazard
Do not leave the compressor unattended while operating. The
compressor is designed for short term operation only. Operation of
the compressor over an extended period of time will cause the
compressor unit to overheat and may cause damage. Allow the
compressor to cool down for 10 minutes after each 10 minutes of
continuous operation.
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