BRP E250DHLSCS, Service Manual

Page: 31 / 396

29
INSTALLATION AND PREDELIVERY
BOAT RIGGING
2
Typical battery functions
IMPORTANT:
Never connect an external bat-
tery isolator to the stator of an
Evinrude E-TEC
.
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.
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.
Accessory
•
Not used as starting battery.
•
Isolated from outboard start function.
•
No red (+) cable connected to battery selector
switch.
Secondary and accessory batteries are often
charged by an isolated battery charging circuit.
Refer to
Auxiliary Battery Charging
on p. 30.
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.
•
Use one battery switch for each outboard
installed.
•
Use the appropriate sized wire and terminals for
all connections.
•
Use AWG stranded copper wire.
Battery Switch Location
•
Always locate battery switch as close to the bat-
teries as possible.
•
Locate switch so that it cannot be accidently
bumped or switched.
•
Refer to the battery switch manufacturer’s
installation instructions for specific information
related to the installation of switch.
•
Fasten all battery switches to solid surfaces.
•
Route wiring as directly as possible.
•
Support the battery switch as needed to prevent
abrasion.
•
Use appropriate wiring and connectors.
•
Seal all connections and terminals with liquid
neoprene or electrical sealer to prevent corro-
sion.
IMPORTANT:
Insulate all battery positive (+)
terminals to prevent shorting.