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error Noco
Error Code Boost LED Does Not Come On w/Cables Connected Properly
Connected battery is below 2 volts.
? What Causes This
Low battery voltage or non-functional battery detection feature.
✓ How to Fix It
Use the Manual Override mode to force activation and proceed with caution. Alternatively, disconnect all loads from the vehicle and retry; if issue persists seek professional help.
Source: page 7 of the official manual
From the manual
This error code appears in:
Noco Gb40 Boost Jumper Lithium Jump Starter