failure mode

FM-11: FM-11 THE BATTERY WAS WET, SUBMERGED, OR EXPOSED TO CONDUCTIVE OR CORROSIVE LIQUID

The battery was exposed to water or conductive/corrosive liquids, causing damage or unsafe conditions.

Diagnostic overview

The battery was exposed to water or conductive/corrosive liquids, causing damage or unsafe conditions.

Likely Root Causes

  • Rain, hose, puddle, submersion, or wet storage
  • Salt, pool, bleach, cleaner, or chemical exposure
  • Liquid entered through the terminal area or housing seam
  • The pack was placed in a wet charger or tool
  • A user attempted washing or liquid cleaning

Quick Checks

  1. The exposed pack is never re-energized and is transferred to an approved damaged-battery handling route.
  2. Fully charge the suspect battery on a designated charger at normal room temperature and confirm Confirm BAT414 is printed on the battery and the mating product is Bosch 10.8V/12V Max

Repair Preview

1.

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

Common Fixes

  • Noncombustible isolation area

Related symptoms

  • The pack was immersed, splashed internally, left in rain, or exposed to salt water, bleach, chlorine, or another conductive/corrosive liquid.

    The pack was immersed, splashed internally, left in rain, or exposed to salt water, bleach, 1. Stop immediately, do not insert the pack into a tool or charger, and remove it from

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.

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.