stanley rhino power station?

[splitshot]

got a stanley rhino power station(500 w) on qvc and it does not work very long.  has anyone had any problems with them?   it only runs a light for an hour and a half.  it only runs my sleep apnea machine for one hour.  could be i dont know how to charge it or something else?  lost in othello?  mike w

[Snopczynski]

what is the amp hour rating of the battery in the unit? What is the amperage on your c-pack machine?

[Whitpirate]

Apnea machine draws more than that unit.  Get yourself a 100 Deep Cycle battery and a cheap inverter.