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critical Schumacher
Error Code bAd bAT F05
The charger failed to maintain battery voltage due to persistent drain or overheating.
? What Causes This
Battery may have excessive internal resistance, leakage, or an external load is present causing draw-down.
✓ How to Fix It
Unplug from vehicle if connected. Check system for parasitic drains and address them.
Source: page 10 of the official manual
From the manual
This error code appears in:
Schumacher Sc1308