Cummins/Onan — Configuring Battery at Inverter-Charger Front Panel
Adjustments · Battery type configuration
From a Cummins/Onan owner's manual covering: 1.5HJBAA, 2.0HJBAA, 2.5HJBAA, 3.0HJBAA. Check it applies to your exact model before use.
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Procedure
- Press and hold the Inverter ON / OFF button for 5 seconds to check configuration; the three indicator lights turn ON and then flash the current battery type.
- Press the Charger ON / OFF button once to advance flashing to the next battery type (1 to 4 flashes).
- When the correct battery type is flashing, press the Inverter ON / OFF button once to save it.
- Enable Inverting and Charging to continue normal operation.
Specs & values
- 1 flash = Wet Cell; 2 = Gel Type No. 1 (Standard); 3 = Gel Type No. 2 (Fast Charge); 4 = AGM
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.