Maintenance
Important: Mak e sur e the negati v e batter y ca ble
is disconnected and the batter y charger used f or
charging the batter y should ha v e an output of
16 v olts and 7 amps or less to a v oid dama ging
the batter y (see char t f or r ecommended charger
settings). T his is especiall y impor tant on EFI
(Electr onic Fuel Injection) units. F ailur e to do so
may dama ge the ECU (Electr onic Contr ol Unit).
V olta ge
R eading
P ercent
Charge
Maximum
Charger
Settings
Charging
Inter v al
12.6 or
g reater
100%
16 v olts/7
amps
No
Charging
R equired
12.4 – 12.6 75–100%
16 v olts/7
amps
30 Min utes
12.2 – 12.4 50–75%
16 v olts/7
amps
1 Hour
12.0–12.2 25–50%
14.4 v olts/4
amps
2 Hours
11.7–12.0 0–25%
14.4 v olts/4
amps
3 Hours
11.7 or less
0%
14.4 v olts/2
amps
6 Hours or
More
Important: F or EFI units: Unplug the har ness
fr om the ECU bef or e perf or ming an y w elding
on the equipment.
Recommended Jump
Starting Procedure
Service Interval : As required
1. Chec k the w eak batter y for ter minal cor rosion
(white , g reen, or blue “sno w”), it m ust be cleaned
off prior to jump star ting . Clean and tighten
connections as necessar y .
CAUTION
Cor r osion or loose connections can cause
unw anted electrical v olta ge spik es at an ytime
during the jump star ting pr ocedur e.
Do Not attempt to jump star t with loose or
cor r oded batter y ter minals or dama ge to the
engine or EFI may occur .
DANGER
J ump star ting a w eak batter y that is crack ed,
fr oz en, has lo w electr ol yte lev el, or an
open/shor ted batter y cell, can cause an
explosion r esulting in serious per sonal injur y .
Do Not jump star t a w eak batter y if these
conditions exist.
2. Mak e sure the booster is a g ood and fully c harg ed
lead acid batter y at 12.6 v olts or g reater . Use
properly sized jumper cables (4 to 6 A W G) with
shor t lengths to reduce v oltag e drop betw een
systems . Mak e sure the cables are color coded or
labeled for the cor rect polarity .
CAUTION
Connecting the jumper ca bles incor r ectl y
(wr ong polarity) can immediatel y dama ge the
electrical and/or EFI system.
Be cer tain of batter y ter minal polarity and
jumper ca ble polarity when hooking up
batteries.
Note: T he follo wing instr uctions are adapted
from the SAE J1494 R ev . Dec . 2001 – Batter y
Booster Cables – Surface V ehicle R ecommended
Practice (SAE – Society of A utomoti v e
Engineers).
W ARNING
Batteries contain acid and pr oduce explosi v e
gases.
• Shield the ey es and f ace fr om the batteries
at all times.
• Do Not lean o v er the batteries.
Note: Be sure the v ent caps are tight and lev el.
Place a damp cloth, if a v ailable , o v er any v ent
caps on both batteries . Be sure the v ehicles do
not touc h and that both electrical systems are
off and at the same rated system v oltag e . T hese
instr uctions are for neg ati v e g round systems only .
3. Connect the positi v e (+) cable to the positi v e (+)
ter minal of the disc harg ed batter y that is wired to
the star ter or solenoid as sho wn in Figure 18 .
36
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