Cummins/Onan P4500iDF — Battery Replacement
Maintenance
For the Cummins/Onan P4500iDF, from the Cummins/Onan owner's manual.
Applies to: Cummins/Onan P4500iDF
Before you start
- Burn hazard. The battery contains sulfuric acid (electrolyte) which is highly corrosive and poisonous.
Parts for this job
- A058U961 Battery Amazon eBay $44.99
Part numbers from the service-parts list for Cummins/Onan P4500iDF. Verify against your serial number before ordering; some links are affiliate links.
Procedure
- Remove the battery access cover.
- Remove the quick-connect plug and the battery strap; remove the battery.
- Disconnect the quick-disconnect cable leads from the battery.
- Connect the white (-) quick-connect cable to the negative terminal; slide boot over connection.
- Connect the red (+) quick-connect cable to the positive terminal; slide boot over connection.
- Install the battery into the generator and secure the battery strap.
- Connect the quick-connect plug and install the battery access cover.
Full service-parts list: Cummins/Onan P4500iDF →
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.