Use CO2 cartridges only in emergency situations. Never use the C02 cartridge to regularly inflate your tires, once tires are inflated with a C02 unit air, air will dissipate through your tire. you will notice a noticeable loss of air overnight having used the C02 cartridge. If you do use a co2 cartridge, I would then deflate the tire and refill tire as your normally would do once you get to a safe spot.12v inflation devices blow lots of fuses and have very short lifespans. Compressors make hot air, hot hoses, hot nozzles, hot meters. Hence the higher pressure displayed. NEVER run them for more than 1 tire until they have completely cooled to room temperature.
Use CO2 cartridges. Trust me. Way better. Way faster. Dry air instead of wet.