failure mode
FM-03: FM-03 BATTERY WILL NOT BEGIN OR COMPLETE CHARGING
The battery will not begin or complete charging when seated in the charger.
Diagnostic overview
The battery will not begin or complete charging when seated in the charger.
Likely Root Causes
- Outlet or charger has no power
- Pack is not fully seated or contacts are dirty
- Battery is too hot or too cold to charge
- Battery or charger interface is damaged
Quick Checks
- Charge cycle completes and the pack powers a light verified load.
Repair Preview
1.
This is a preview of the troubleshooting guidance included in the full repair manual.
Common Fixes
- Compatible charger
Related symptoms
A seated battery shows no charge response, or charge never reaches a usable full state.
A seated battery shows no charge response, or charge 1. Unplug charger, remove battery, and inspect both dry contacts.
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.