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How to Make Booster Cables Using
800 Amp Booster Clamps
These instructions are designed for the professional mechanic who
wishes to make or repair a set of booster cables using 800 amp booster
clamps, Nos. 602070-002, 602071-001 and 602072-001.
These booster clamps can be used with 1, 1/0, 2/0, and 3/0 gauge
cable. The gauge of the cable you select is dependent on two factors, the
length of your booster cable and the amperage draw of the equipment
you are jump-starting.
Once you have selected the cable gauge, then you know which No.
4800 series heavy wall copper lugs you should use. These booster clamps
are made to be used with 1, 1/0, 2/0, or 3/0 gauge heavy wall copper lugs. The lugs are
clamps; they should be purchased separately. See #6 page 2
1. No. 602070-002 booster clamp kits contain the following:
not included with the booster
No. 602071-001 Kit
1 – 800 amp Solid Copper Clamp
2 – 3-3/4” (95mm) Handle Grip Tube - Black
1 – 5/16” - 18 x 5/8” Round Head Screw
1 – 5/16” - 18 Hex Nut
1 – 800 amp Solid Copper Clamp
2 – 3-3/4” (95mm) Handle Grip Tube - Red
1 – 5/16” - 18 x 5/8” Round Head Screw
1 – 5/16” - 18 Hex Nut
No. 602072-001 Kit
No. 602070-002 Kit
2 – 800 amp Solid Copper Clamp
2 – 3-3/4” (95mm) Handle Grip Tube - Red
2 – 3-3/4” (95mm) Handle Grip Tube - Black
2 – 5/16” - 18 x 5/8” Round Head Screw
2 – 5/16” - 18 Hex Nut
Items not included in the booster cable kit: copper cable and heavy wall copper lugs.
Cut cable to the length of the booster cables you desire. This cable should either be twin conductor or two separate
2.
conductors, one for the positive and one for the negative. We strongly recommend finely stranded welding-type
cable, with a neoprene or synthetic rubber insulation, as this will remain flexible in cold weather and give you maximum conductivity. See #5 (page 2)
3. Red for Positive, Black for Negative. Use red insulated or red marked cable for the positive booster cable and use
black insulated cable for the negative booster cable.
4. Length and Gauge. Generally, the longer the booster cables, the larger the gauge cable you need to use. Likewise,
the larger the displacement of the engine you are jump-starting, the larger the gauge cable you should use. If you
expect to use the booster cables in very cold conditions, where the temperature may be below 0° F or –20° C, use a
large gauge cable, as batteries will not be operating at their peak capability.
Battery Efficiency and Starting Power Requirements Depend on Temperature
Temperature
Degrees F
80° F
Temperature
Degrees C
26° C
Starting Power
Available from Battery
100 %
Starting Power
Required by Engine
100 %
32° F
0° F
-20° F
0° C
-20° C
-29° C
65 %
40 %
18 %
155 %
210 %
268 %
. Guideline for Cable Gauge. For the proper gauge booster cable for your vehicle, please check your owner’s manual.
5
If this information is not available, use the following as a guideline. Important: the gauge size of your booster cables
should be larger than the largest and longest cable in your vehicle.
able Carrying Capacities
C
25’ (7.6M) Booster Cables
For Intermittent Duty
Only (Not Continuous Duty)
Copper Cable
auge
G
1 Gauge
1/0 Gauge
2/0 Gauge
3/0 Gauge
Note: For longer booster cables, increase the gauge of the cable.
Made of
elding Cable
W
Up to 400 Amps
500 Amps
600 Amps
700 Amps
Made of
attery Cable
B
300 Amps
325 Amps
375 Amps
425 Amps
ypical Vehicle
T
Full-size Car or Van
Light Truck, Light Construction, Small Tractor
Tractor, Truck, Bus, Construction
HD Tractor, Off Highway
6. Heavy Wall Copper Lugs. Based on cable selected, use the appropriate heavy wall copper lugs below One lug is
required for one booster clamp. Four lugs are required for the typical set of booster cables. (The part numbers below
are for a box with five lugs.)
The size bullets (left) will help
ou determine the gauge (size)
Part Number
4801-005F
4810-005F
4820-005F
4830-005F
Fits Cable Gauge
1 Gauge
1/0 Gauge
2/0 Gauge
3/0 Gauge
y
f an unmarked cable.
o
easure the bare conductor
M
only, not the insulation. Actual
diameters vary depending on the
pecific stranding of the wire.
s
Fig. 1
7. Slide the handle grip onto and away from the end. Strip 7/8” to 1” (22 - 25 mm) of insulation from end of cable.
Insert bared wires into barrel of lug. Crimp lug on to cable. Use two crimps on barrel for best connection. See
Figure 1.
8. One handle of the booster clamp is formed so that the heavy wall lugs will nest inside. Bolt the lug into place
according to Figure 2.
9. Slide the 3-3/4" (95mm) handle grip down over the handle and lug, according to Figure 2.
The handle grip tube will seal the cable, reducing corrosion, and it will also act as a strain relief for the cable, extending the life of your booster cable.
10. Push the other handle grip onto the other handle. Make certain the grips are the same color on both handles. See
Figure 2.
For a typical set of booster cables, install a second clamp on the other end of the cable. Make certain the same color
11.
handle grip is used for both clamps on the same length of cable. Use black grips for the negative booster cable. Use
red grips for the positive cable. See Figure 3.
Fig. 2
Fig. 3