Cummins/Onan WC4-10S-5 — Connecting Batteries
Installation · Starting battery
For the Cummins/Onan WC4-10S-5, from the Cummins/Onan service manual.
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Before you start
- Always disconnect battery negative (-) lead first and reconnect it last.
Procedure
- Set the battery or batteries as close to the housing as practicable.
- Connect the negative battery cable to the negative battery post and to the negative terminal post on the housing.
- Connect the positive battery cable to the positive battery post and to the positive terminal post on the housing.
- Place all cable connectors well down around the battery posts and tighten the bolts securely.
Specs & values
- Terminal posts provided for a 12-volt Amazon eBay $11.99 FridayParts $65.01 or two 6-volt automotive type storage batteries; negative terminal post grounded to housing
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.