Filling scuba tanks

are you wanting a small compressor or a large SCUBA compressor, I use a Large SCUBA compressor to fill my SCBA tanks to 4500 psi, many people use the small Yong Heng compressor to fill SCBA and SCUBA tanks with cooling modifications, also It takes awhile, but it will fill them, I don't recommend any of the Oil less Waterless compressors, they are just meant for filling the gun only.
SUDEG PCP Air Compressor, 4500PSI/30Mpa Oil/Water-Free High Pressure Air Compressor Pump,Portable Air Compressor & Transformer Set,8MM Quick-Connector,Powered by 12V DC,Black https://a.co/d/dGpcO8T so I found that air compressor and was wondering if it would be able to fill up a full sized 80 cubic foot scuba tank or if I would need some sort of adapter
 
It’s an air compressor isn’t it
Let me put it this way, "are you going to use a Prius to Haul a semi trailer or are you going to use a Semi Truck to haul a Semi Trailer", they are both vehicles, Like I said before, the Small oil less/ waterless PCP compressors are for filling the tank on a PCP gun up to about 500 to 700 cc, or a small buddy tank of the same size, Not for use on full size Tanks as stated in the manufactures manuals and statements, it may be possible to fill at small amounts with cool down periods in between, but that would take forever to fill a full size tank and not worth the effort and will wear the compressor out prematurely.
if you are going to fill full size tanks, use a compressor designed for the task at hand.
 
Let me put it this way, "are you going to use a Prius to Haul a semi trailer or are you going to use a Semi Truck to haul a Semi Trailer", they are both vehicles, Like I said before, the Small oil less/ waterless PCP compressors are for filling the tank on a PCP gun up to about 500 to 700 cc, or a small buddy tank of the same size, Not for use on full size Tanks as stated in the manufactures manuals and statements, it may be possible to fill at small amounts with cool down periods in between, but that would take forever to fill a full size tank and not worth the effort and will wear the compressor out prematurely.
if you are going to fill full size tanks, use a compressor designed for the task at hand.
How long would it take per tank just because I don’t have my certification yet my dads going to take me for my birthday but I’ve watched numerous videos and am going to practice in my pool a lot before I even go to the lake but I Jaycee Ong be able to get it filled until I get certified