Battery Switches And Multiple Batteries - BRP Evinrude E-Tec Series Service Manual

Battery Cable Requirements
Evinrude/Johnson outboards are shipped with
stranded copper battery cables for typical installa-
tions in which the starting battery is positioned
close to the transom.
Specialized outboard installations with extended
length battery cables require an increased wire
size. Refer to the following table.
Models
Evinrude E-TEC 60° V
Battery Switches and Multiple
Batteries
A multiple battery setup, including marine battery
selector switches, can provide flexibility in single
and dual outboard installations.
Refer to Battery and Switch Wiring Diagrams
on p. 39 for various battery connection options.
The battery selection function can be used for
emergency starting if a primary battery becomes
discharged.
The OFF position of the battery selector switch
can be used to minimize battery discharge during
periods of non-use.
Typical battery functions
Primary
Used as starting battery under normal operating
•
conditions.
Red (+) cable connected to battery selector
•
switch.
Primary battery is charged by connection to
•
main red (+) outboard battery cable.
Dual outboard installations can utilize the oppos-
ing outboard's primary battery as a secondary bat-
tery for emergency starting only.
INSTALLATION AND PREDELIVERY
IMPORTANT:
affect the performance of an outboard's high
amperage start circuit and the cranking speed of
the outboard. DO NOT use aluminum wire cables.
Use ONLY AWG stranded copper wire cables.
1 to 10 Ft. 11 to 15 Ft.
(.3 to 3 m) (3.4 to 4.6 m)
4 Gauge
Secondary
Used as back-up starting battery under abnor-
•
mal operating conditions.
Red (+) cable connected to battery selector
•
switch.
Secondary battery is charged independently
•
from primary battery.
The secondary battery is often charged by a bat-
tery charge isolator. Refer to Auxiliary Battery
Charge Isolator on p. 38.
Accessory
Not used as starting battery.
•
Isolated from outboard start function.
•
No red (+) cable connected to battery selector
•
switch.
The accessory battery is often charged by a bat-
tery charge isolator. Refer to Auxiliary Battery
Charge Isolator on p. 38.
Battery Switch Requirements
Battery switches must meet the following require-
ments.
The switch must be approved for marine use.
•
The switch should be a "make before break"
•
design to protect the charging system from a
no-load condition.
Switch amperage rating should be adequate for
•
the outboard it will be used on.
BOAT RIGGING
Inadequate battery cables can
16 to 20 Ft.
(4.9 to 6.1 m)
2 Gauge 1 Gauge
2
37