Thanks for your no-nonsense review. It seems to be a very good pump other than the weigh and size. And I’m not even going to give hope to read the display under the sun. How does it indicate the state of charge?
When you plug a USB-C cable into the pump, the display turns on and one of the 4 battery bars will start flashing. When it's full the last flashing bar turns solid.
The Seawolf S20LI has a bigger battery (10,000mah vs 7400mah) so it will inflate more boards. It will be slower than the Shark 3. The Seawolf S20LI is running both cylinders off the same motor where the Shark 3 has 2 independent compressors. (You only get 1 compressor when running off a 12 volt source and 2 when running off the internal battery). I have no hands on experience with Swonder gear. I've had my hands on almost everything paddleboard and skiing related from Outdoor Master and have used their customer service service a couple times when things didn't work and they were always quick with replacements.
The Shark 3 has 2 air compressors in it that run at the same time. The Shark 2s only has 1 compressor in it. The Shark 3 inflates boards twice as fast. The Shark 3 can inflate my Red Paddle Co Voyager 12'6" to 20 psi in 7 minutes and 24 seconds. It takes my Shark 2s 13 minutes and 2 seconds using a 12 volt source or 16 minutes and 38 seconds using battery to inflate the same board.
I had bought one from cycplus and I like it but it is much louder than my Milwaukee air compressor. Was considering trying this one out before my return period ended. How loud is this one? I don’t want to scare people around me hahah.
I think the Shark 3 and 2s are a bit lower pitch so the noise isn't quite as obnoxious. The Shark 3's 2 compressors don't seem to raise the volume at all compared to the Shark 2s. That being said they are still loud. They might be 10-15% more quiet than a Shark 2 or other older design 2 stage pump. I haven't tested an electric paddleboard pump yet that I would classify as quiet.
My review sample does not. I know according to Outdoor Master they are supposed to. My display does not turn on under 12 volt power until I hit the power button to turn it on. If it's charging under 12 volt it's not giving any indication that it is charging. With a USB cord, the display turns on with a flashing bar to show it's charging.
Seems so stupid that it only uses two compressors when on battery mode and not the 12v. Seems stupid that theres not a DC current option eother (i currently convert 12v from dc from mains)
The reason is the current limit you can pull from a 12 volt outlet in a car without blowing the fuse. 2 compressors would pop the fuse right away. Most cars have a 10 amp limit on the 12 volt volt outlets. The 6000 mah battery in the Shark 3 can easily do 60 amps at a 10c current rate without drastically reducing the lifespan of the battery.
