Originally Posted by raftus
My pumps instruction manual said it could run for 20 minutes before needing a 10 minute break. My raft is Hyside 14 footer. It probably takes about 5 minutes to inflate. I have also heard that 12v shop vacs work well.
On a side note: I recently read that you should have your car OFF while using the electric blower. Never heard this before, anyone know why or if this is true? My assumption was that it was better to have my car running while using the blower.
It's a voltage thing. Your alternator puts out around 14.5 volts to charge your battery with your engine running. Without the engine running, your battery puts out about 12.5 volts. The extra voltage could be damaging to a cheap wound motor not designed to take the extra voltage.
I use a Dewalt 2 gallon shop vac that runs on their 18V batteries or 110 house current. I can blow up 2 14' Avons on a single battery.