Battery Isolators
Dual Battery Charging Systems
Using a Battery Isolator
Battery isolators allow the addition of an auxiliary
(second) battery to the MerCruiser electrical system.
The auxiliary battery is primarily used as a power
source for various accessories installed on the boat.
The battery isolator will allow the alternator to charge
both the cranking and auxiliary batteries at the same
time while preventing accessories, connected to the
auxiliary battery, from drawing power from the crank-
ing battery.
Mercury Marine does not manufacture any battery
isolator systems. Battery isolators must be bought
from an outside manufacturer. Mercury Marine sug-
gests following the manufacturer’s instructions care-
fully.
IMPORTANT: Alternators used on MerCruiser en-
gines ARE NOT equipped with an isolation diode.
!
CAUTION
Follow battery isolator manufacturer’s instruc-
tions for wire gauge. Battery isolator installation
must conform to BIA Low Voltage Wiring Stan-
dard No. 125-79.
NOTE: MerCruiser engines equipped with a 3-wire,
belt driven alternator, can use a battery isolator.
Index
90-823224--2 796
CHARGING SYSTEM - 4C-37
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 454 CID, Mercury MerCruiser 502 CID |
| Model Year | 1993, 1994, 1995, 1996, 1997 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
(4 votes, average: 4.5 out of 5)
Marine readers have rated 1993 1997 Mercury-MerCruiser GM V8 454 CID 7.4L and 502 CID 8.2L Marine Engines Service Manual Number 16 4.5 out of 5.0 based on 4 product reviews. Hugely helpful service manual! Perfect. Thank you!
Manuals are all Important for Technician
This book is invaluable if you do your own repairs. Great book.
Could not find a copy until a search brought me here.
Excellent print.
Thank you