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Important:
Make sure the negative battery cable
is disconnected and the battery charger used for
charging the battery should have an output of
16 volts and 7 amps or less to avoid damaging
the battery (see chart for recommended charger
settings).
Voltage
Percent
Reading
Charge
12.6 or
100%
greater
12.4 – 12.6
75–100%
12.2 – 12.4
50–75%
12.0–12.2
25–50%
11.7–12.0
0–25%
11.7 or less
0%
Recommended Jump
Starting Procedure
1.
Check the weak battery for terminal corrosion
(white, green, or blue "snow"), it must be cleaned
off prior to jump starting. Clean and tighten the
connections as necessary.
CAUTION
Corrosion or loose connections can
cause unwanted electrical voltage spikes
at anytime during the jump starting
procedure.
Do not attempt to jump start with loose
or corroded battery terminals or damage
to the engine may occur.
DANGER
Jump starting a weak battery that is
cracked, frozen, has low electrolyte level,
or an open/shorted battery cell, can
cause an explosion resulting in serious
personal injury.
Do not jump start a weak battery if these
conditions exist.
2.
Make sure the booster is a good and fully
charged lead acid battery at 12.6 volts or
Maximum
Charging
Charger
Interval
Settings
16 volts/7
No Charging
amps
Required
16 volts/7
30 Minutes
amps
16 volts/7
1 Hour
amps
14.4 volts/4
2 Hours
amps
14.4 volts/4
3 Hours
amps
14.4 volts/2
6 Hours or
amps
More
greater. Use properly sized jumper cables (4 to 6
AWG) with short lengths to reduce voltage drop
between systems. Make sure the cables are
color coded or labeled for the correct polarity.
CAUTION
Connecting the jumper cables incorrectly
(wrong polarity) can immediately damage
the electrical system.
Be certain of battery terminal polarity
and jumper cable polarity when hooking
up batteries.
Note:
The following instructions are adapted
from the SAE J1494 Rev. Dec. 2001 –
Battery Booster Cables – Surface Vehicle
Recommended Practice (SAE – Society of
Automotive Engineers).
WARNING
Batteries contain acid and produce
explosive gases.
• Shield the eyes and face from the
batteries at all times.
• Do not lean over the batteries.
Note:
Be sure the vent caps are tight and level.
Place a damp cloth, if available, over any vent
caps on both batteries. Be sure the vehicles do
not touch and that both electrical systems are off
and at the same rated system voltage. These
instructions are for negative ground systems
only.
3.
Connect the positive (+) cable to the positive (+)
terminal of the discharged battery that is wired
to the starter or solenoid.
30
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