FM-15: FM-15 BATTERY LOSES CHARGE RAPIDLY WHILE STORED DISCONNECTED

FM-15

• The sealed pack has abnormal self-discharge
• A cell group or protection circuit is leaking energy internally
• The pack was stored hot, wet or near conductive debris
• The apparent loss occurs only while installed in a tool or charger

1. The battery retains charge similarly to the known-good pack while disconnected, or abnormal self-discharge is proven.

1.

This is a preview of the troubleshooting guidance included in the full repair manual.

• Battery loses charge rapidly while stored disconnected

  FM-15 BATTERY LOSES CHARGE RAPIDLY WHILE STORED FM-21 A NEW INTERNAL RATTLE OR LOOSE MOVEMENT IS

• After a normal full charge, the battery loses a large amount of indicated charge or usable low-load runtime while stored by itself in a cool, dry place.

  After a normal full charge, the battery loses a large amount of 1. Remove the pack from all tools and chargers, screen it for damage, and charge it

• 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.