failure mode
FM-11 A HIGH-CHARGE BATTERY GIVES NO OUTPUT IN A KNOWN-GOOD COMPATIBLE TOOL
FM-11
Diagnostic overview
FM-11
Likely Root Causes
- Power contacts are contaminated or recessed
- The protection electronics remain open
- An internal power rail or cell connection has failed
- The tool receiver has a counterpart fault
Quick Checks
- The battery powers a known-good compatible tool while stationary, or persistent zero output is conclusively isolated to the pack.
Repair Preview
1.
This is a preview of the troubleshooting guidance included in the full repair manual.
Related symptoms
The battery shows a credible high charge or has just completed a proven charge, remains fully latched and still gives no response in a known-good compatible tool while stationary.
The battery shows a credible high charge or has just 1. Remove the pack, screen for damage or heat, and dry-clean only the accessible
Included in the full manual
- root cause analysis
- tools needed
- step-by-step repair procedure
- diagrams
- exploded views
- post-repair checks
Public pages show a preview only. Purchase the full manual to download complete repair steps, diagrams, and verification procedures.