Cummins/Onan — Disabling Battery Charger
Adjustments · Battery charging voltage regulator
From a Cummins/Onan service manual — check it applies to your exact model before use.
Applies to: Cummins/Onan MDKB, Cummins/Onan MDKBH
Parts for this job
- G3102-8833-0 Battery — Cummins/Onan MDKB Amazon eBay
Part numbers from the service-parts lists for Cummins/Onan MDKB, Cummins/Onan MDKBH. Verify against your serial number before ordering; some links are affiliate links.
Procedure
- Disconnect the leads marked B1, B2 and B+ from the quick-connect terminals on battery charging voltage regulator.
- Insulate the end of each lead with several wraps of listed electrical insulating tape and tie them neatly into the wiring harness.
- Secure the access cover when done.
Full service-parts list: Cummins/Onan MDKB →, Cummins/Onan MDKBH →
Source: Cummins/Onan service 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.