Cummins/Onan — Storing Battery
Maintenance
From a Cummins/Onan operator's manual covering: P216, P218, P220. Check it applies to your exact model before use.
Applies to: Cummins/Onan P216, Cummins/Onan P218, Cummins/Onan P220
Procedure
- If engine is to be stored for more than 30 days, remove the battery.
- With electrolyte level at the bottom of the split ring, charge the battery before storing.
- After every 30 days in storage, bring battery back up to full charge.
- To reduce self-discharge, store battery in as cool a place as possible so long as electrolyte does not freeze.
Full service-parts list: Cummins/Onan P216 →, Cummins/Onan P218 →, Cummins/Onan P220 →
Source: Cummins/Onan operator'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.