Product Manual
INSTALLATION – CONNECTION
To make the electrical connections, the supplied battery cables will need to be made to the
correct length using cable lugs and heatshrink. Cable lugs should be crimped or soldered to the
stripped battery cable and then protected with the heatshrink.
1. Disconnect the negative battery cable (Earth) from the vehicle’s starting battery.
Note: To prevent the loss of vehicle electronic memories, radio presets & security codes, it is
recommended that an “Electrical System Memory Protector” be used.
2. Connect a length of the supplied red cable from the ‘MAIN’ (+) terminal on the isolator to the
positive battery terminal on the starting (main).
3. Connect a length of the supplied red cable from the ‘AUX’ (+) terminal on the isolator to the
positive battery terminal of the auxiliary battery. The connection at the Auxiliary battery should
be fused using a Projecta ‘Fused’ battery terminal (P/No.BT950-P1) or a 150 Amp fuse or circuit
breaker mounted inline. If using the BT950-P (Fused distribution terminal) the connection from
the battery isolator should be made to main (large) fuse stud.
Do not over-tighten the terminal studs on the electronic isolator.
4. Connect the isolator’s ‘Earth’ wire (small black wire with ring terminal) to a suitable chassis bolt
or screw, ensure the ring terminal will make a good electrical connection by removing any paint.
5. Reconnect the starting (main) battery’s negative cable (Earth), the isolator should now flash the
red ‘power‘ LED.
6. Connect a length of the supplied black cable from the vehicle’s chassis or engine block to the
negative terminal of the auxiliary battery as a ground cable (Earth), the isolator should now
show a solid red ‘power’ LED.
7. Connect all of the auxiliary loads (phone, lights, stereo, refrigerator, etc.) to the positive battery
terminal of the auxiliary battery, use appropriate circuit protection fuses, if using the Projecta
BT950-P1 terminal this includes 2 x 30A fused accessory circuits.
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