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SKU 93801/93802 For technical questions, please call 1-800-444-3353. PAGE 4
GENERAL INSTALLATION INSTRUCTIONS
PRODUCT USAGE: The Battery Isolator allows maintenance-free and deep cycle
batteries to be properly charged and also offers dual battery control.
1. IMPORTANT: If you are installing the Isolator on a Toyota (Alternator Group 2) or a
Motorola/Bosch (Aternator Group 3) refer to the special instructions in this manual
before disconnecting any part of the existing system.
2. For optimum system performance, use a battery labeled “Deep Cycle” in the auxiliary
position.
3. Multi-Battery Isolators are designed for alternator systems with negative ground and
batteries of the same nominal voltage. Batteries of differing voltages cannot be
used.
4. Refer to the “Recommended Wire Size/Circuit Breaker” Chart below to determine
the proper wire size and circuit breaker (not included) for your installation.
RECOMMENDED
WIRE SIZE/CIRCUIT BREAKER
MAXIMUM
12 VOLT
ALTERNATOR
RATING
Up to 15 Ft. 15 Ft. to 20 Ft. 20 Ft. to 25 Ft. 25 Ft. to 30 Ft.
70 Amps #8 Ga./50 Amp #8 Ga./50 Amp #6 Ga./50 Amp #6 Ga./50 Amp
95 Amps #8 Ga./50 Amp #6 Ga./50 Amp #4 Ga./50 Amp #4 Ga./50 Amp
130 Amps #6 Ga./80 Amp #4 Ga./80 Amp #2 Ga./80 Amp #1 Ga./80 Amp
160 Amps #4 Ga./120 Amp #2 Ga./120 Amp #2 Ga./120 Amp #0 Ga./120 Amp
240 Amps #000 Ga./150 Amp #000 Ga./150 Amp #0000 Ga./150 Amp #0000Ga./150 Amp
5. Remove the cables from the negative terminals of all the batteries on your vehicle.
6. Mount the Isolator in a convenient location as near to the alternator as possible and
away from the exhaust manifold. Allow for proper ventilation. Do not mount on the
engine. Drill 1/8” holes and mount with the Screws (4) and Split-Lock Washers (5)
provided. (See Assy. Diagram.)
7. Install the Hex/Speed Nuts (3), Ring Terminal with Wire (not included), Split-Lock
Washers (6), and Hex Nuts (2) to the three Isolator Studs as shown in the illustration.
(See Figure A.)
FIGURE A
HEX/SPEED NUT (3)
ISOLATOR STUD
RING TERMINAL
W/WIRE
(NOT INCLUDED)
SPLIT-LOCK WASHER
(6)
HEX NUT (2)