ELECTRICAL
W
hat Size of Wire Should I Use?
A minimum of 4 gauge copper battery cable should be used for both positive and ground
wire lengths up to 15 foot. For lengths of 15’ - 30’ use 2 gauge or 1 O copper wire
GROUnd WIRe
IN most cases a short ground cable from the 12-Voltair to the frame of your vehicle is sufficient. When securing a ground
to the frame of a vehicle be sure to sand/grind metal ‘shinny’ to ensure that the ground makes good contact. REMEMBER:
When working with 12-Volt DC your positive connection is only as good as your ground. In other words, if you have a ‘weak’
ground connection you will not be able to get peak energy through the positive wire to the
12-Voltair.
Step 1
Run the wire from the bottom of the vehicle up through
the back hole of the 12-Voltair base.
Step 2
Strip back about 3/4” of the outer covering of the
battery cable and attach and secure to the ‘loose’ copper lug,
at the base of the motor, by either soldering or crimping.
Wrap the connection with electrical tape to complete the job, ‘well done!’
Step 3
Secure to the bolt on the base of the motor
Step 4
Run other end of the ground wire along frame of vehicle to ground location and secure. Be sure to use
plastic tie straps to secure wire against frame.
POSITIVe WIRe
This wire should be run directly from the battery of the vehicle to the left side of the solenoid in the 12-Voltair. When running
this wire be sure to keep it away from moving parts and exhaust. kEEP IN MIND that if the outer sheath of the battery cable
wears through and makes contact with metal it will create a short and could cause major damage.
Step 1
Run wire from the bottom of the vehicle up through the front hole of the 12-Voltair base.
Step 2
Strip back about 3/4” of the outer covering of the battery cable and attach and secure to the copper
lug by either soldering or crimping. Wrap the connection with electrical tape to complete the job, ‘well done!’
Step 3
Attach to the left side of the solenoid. Be sure that the copper eyelet is not making contact with any
other metal objects.
Step 4
Run other end of positive wire along frame of vehicle to the positive side of the battery. Be sure to use
plastic tie straps to secure wire against frame. DO NOT USE WIRE.
BATTeRY FACTS
1. The OEM (Original Equipment Battery) that came with the purchase of your vehicle is only designed to keep up with the
demand of the vehicle. For optimum performance, Voltair recommends replacing your battery with a battery that is rated
with 120 or more minutes of reserve.
2. The alternator that comes standard in most vehicles will charge between 40-50 amps at a vehicle idle. Since the Voltair
draws 80 amps when in use, Voltair recommends a good battery and in some cases a second battery maybe necessary.
3. Voltair recommends a battery with 120 or more minutes of reserve. The 12-Voltair air compressor does not need cranking
amps for optimum performance, but it does need battery reserve.
4. Over time a battery’s ability to hold a full charge greatly diminishes. A lead battery may need to be replaced every 2 years
and an optima battery may need to be replaced every 4 years.
5. If you are using or planning to use the 12-Voltair for more than 3-4 hours on a day-to-day basis adding a second battery
will help in achieving optimum performance
“ A i r W h e re A n d W h e n Yo u N e e d I t ! ”
®
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