failure mode

FM-15: FM-15 BATTERY가 분리 보관 중 급격히 방전됨

FM-15

진단 개요

FM-15

예상 근본 원인

  • 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

빠른 점검

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

수리 미리보기

1.

이것은 전체 수리 매뉴얼에 포함된 문제 해결 안내의 미리보기입니다.

관련 증상

  • 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

전체 매뉴얼에 포함

  • root cause analysis
  • tools needed
  • step-by-step repair procedure
  • diagrams
  • exploded views
  • post-repair checks

공개 페이지에는 미리보기만 표시됩니다. 전체 수리 단계, 다이어그램 및 검증 절차를 다운로드하려면 전체 매뉴얼을 구매하세요.

FixBeforeBuy

Trusted repair guides, error codes, symptoms, and manuals before you replace your equipment.

Navigation

For technicians

Need the full step-by-step manual? Purchase securely on FixBeforeBuy and download your PDF after Stripe payment.

© 2026 FixBeforeBuy. Repair smarter before you buy.