Cummins/Onan — Connecting DC Plant Batteries and Load
Installation · Batteries and DC output
From a Cummins/Onan owner's manual — check it applies to your exact model before use.
Browse Cummins/Onan generators & specs →
Before you start
- Disconnect the battery whenever servicing any control panel equipment.
Procedure
- Connect the two 6-volt batteries in series with a short jumper cable.
- Connect the start solenoid cable to the remaining positive post.
- Connect the cylinder-head grounded cable to the remaining negative post.
- Connect the main line positive wire to the positive DC OUTPUT terminal.
- Connect the main line negative wire to the negative DC OUTPUT terminal.
Source: Cummins/Onan owner's manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.