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warning Battery
Error Code ALTERNATING RED & GREEN LIGHTS FLASHING (PLUS)
Indicates battery sulfation or poor electrical connection between charger and battery posts.
? What Causes This
Battery sulfation, improper connections to battery terminals.
✓ How to Fix It
- Check terminal connections for secure fitting.
- Verify absence of corrosion or debris around terminals.
Source: page 6 of the official manual
From the manual
This error code appears in:
Battery Tender Junior