I had a flat the other day, would have been great to have one of these around the house MiGear 3in1 Power Station the call out fee for a mechanic was more than this cost! Road side cover wouldn't cover it as I was at home, so frustrating! Anyway the MiGear 3in1 Power Station has been reduced by Dick Smith to just $20 but it's an in store only deal, I've seen them for around $90 before:
MiGear 3in1 Power Station

Buy MiGear 3in1 Power Station | Read Reviews | Dick Smith Online Shopping

The MiGear 3in1 Power Station has a built in 12V 8Ah Rechargeable lead acid battery and can be charged by AC or DC charger.

  • 300Amp Jumpstart system
  • New Technology of double injection housing
  • Reverse polarity indicator
  • Safety on-off switch
  • Battery level indicator
  • 260PSI air compressor
  • max output 11Ampere.
  • 12V outlet

This video is for a 5 in 1 and it's a bit annoying to listen to:
Guide Gear 5in1 Jumpstarter