Chamvis Paddle Board Pump, 22PSI SUP Pump for Paddle Board Electric Air Pump: Inflation/Deflation 12V DC SUP Air Pump with Auto-Off for Inflatable Stand Up Paddle Boards, Kayaks, Boats

Bought this one for my new paddle board. Watched some youtube video so had a rough idea. When actual use, it works well.A charging to 12psi is like this way:in 1min or so, an fully deflated SUP will reach about 0.6 psi (forgot exact threshold). That's when the pump will switch from coarse to pressured one. Also the moment when big noise starts. BTW, it is really big noise. However, I guess all electric SUP pump will sound the same. It takes about 7mins to reach 12 PSI. That is totally about 8min. Overall, I am satisfied.There are some surprising/not-satisfactory things that I do want future buyer be aware:1. This one is small. yeh, smaller than what I had thought at least. Maybe a 13" laptop size? A bigger one might means faster inflation? A 8min-ish pump time is acceptable for me so I won't change.2. The 12v cigarette lighter adapter is NOT covered by anythign from backside. There is no lid that you would imagine. The wires/adapter could easily fall off from backside chamber. Can't understand why manufacturer chose that way.

Blew up the raft but didn't complete the job,. Started making a noise when it decided the raft was full of air - when it wasn't. I have to use the manual pump to finished the job. Making purchasing the item Just about useless for me. Might be good for a blow up thing for the pool or a air mattress.

The media could not be loaded. We are on the lake and spent more than 20 min to trying the new inflator - NOT going above .6!Ended up with a not planned workout and losing valuable time.UPDATE - it's starting to work

Ordered this unit to air up paddleboard. The first unit came in and would blow fuses as soon as I hooked up to power through the 12 volt socket. Did a warranty exchange and the second one came in. Had no issues with it for the first summer. After airing up one board. It would get hot and shut off. Had to wait for it to cool to air another. Works like it should. Would recommend for one board. More then one board I would spend a little extra and get a better pump.

I returned my first unit because it did not reach the second stage after 10 minutes. PSI stopped increasing in 0.66 . The seller contacted me after a couple of days to send me another unit for testing. This time it worked perfectly. It's even quicker than the other one I bought. I recommend it

It didn't work for me so I returned.I tried twice in different days.1st try, it only went up to 0.4 psi then stayed in 0.4 psi for 5 min until I finally gave up.2nd try, it went up to 0.6 psi then the same thing, just stayed at 0.6 for about 5 min and I just gave up.

Takes about 7-8 minutes for a 10.5' paddleboard to be pumped to 14psi. Just plug it in, set it and forget it. Key note: leave the car running when in use. Otherwise, it may not switch over to the high pressure pump.

This absolutely did not work to blow up a paddle board. Not strong enough. It would get it to about 45% and then stop there and couldn't do the rest. Returned.