Endurance jumpstart and air compressor end616

I think there should be a way to plug it in to household plug. Check instruction manual.

all the jump starts i have seen have a deep cycle battery that is sealed - i would not run something like an air compressor motor with low voltage - it can be discharged almost flat , but do not leave it long before charging back up - low voltage =high amps on motors

If it is 12 volt, yes.

Your problem in the power supply.
so the power not connected to the drive motor, so that the motor cannot run. and cannot drive the compressor

If it's like mine, it probably won't charge. First time I let it run down, it was screwed, a real POS.

Go to this LINK and find the part/diagram that can help you.

Hi, usually after you drain the unit down it will take up to 4 hours for it to charge up 100%. but do not leave it on the charger all the time when not in use because this decreases battery life.

a charger of the wright polarity and volts (12-14.5volts) that can charge at say 500ma and fits the charging scocket in the power pack will charge your power pack up ok

there is a 5 led indicator on the jumpstarter 5 leds is full, no leds is empty maybe switch it on for indication

charger reqwerment