I got this and used it at the beach: https://www.amazon.com/DEWALT-DCC020IB-20V-Inflator-Bare/dp/B07H39S9JQ

Have a 5ah battery. Aired down to 15psi and reinflated to 35 twice and still had some battery left. It's nice being able to set the psi and let it do it's thing.

If you already have some Dewalt power tools with their 20v bolt batteries this portable compressor works great. https://www.amazon.com/DEWALT-DCC020IB-20V-Inflator-Bare/dp/B07H39S9JQ/ref=zg_bs_9022396011_sccl_1/138-8884265-6646358?th=1 I keep mine in my Bolt EUV underneath the cargo floor cover with my charging cable. Basically, you plug it in and it detects the current PSI and shows it on one screen and then you use the dial on the other to specify the target PSI you want it and it automatically feels it up to that level and shuts off. Easy peasy.