Wiring diagram for Battery Isolator
Updated 10/31/2017 | Published 10/29/2017 >
Question:
Not sure what post 1-2-A-and E go to
asked by: Mike
Helpful Expert Reply:
For your battery isolator similar to # DW08771, you will have connection posts for each battery and for an alternator. The main battery will connect to position one and the alternator to the A post. The second battery will attach to the 2 via a circuit breaker that is rated appropriately for the battery. Output from the second battery positive post will then go to the items you want to power. I have included a picture that should help.
If you do not have a group 1 alternator then the E post will not be used. The alternator needs to have a max output of 120 amps to use this isolator. If you do have a group 1 alternator then you will use the E post and not the A post.

Product Page this Question was Asked From
Deka Battery Isolator - 120 Amp
- Battery Charger
- Battery Isolators
- 6V
- 12V
- 24V
- 36V
- 48V
- 50V
- Vehicle Battery to Auxiliary Battery
- Deka
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