CRAFTSMAN V20 CMCB204

Model number: CMCB204

Also known as: Craftsman, CMCB204, CRAFTSMAN Tools

• Craftsman Cmcb204 Battery Repair Manual

• Gauge LEDs jump or disagree sharply with charge state and runtime.

  Gauge LEDs jump or disagree sharply with charge 1. Fully charge, rest at room temperature, and read gauge twice.

• Temperature delay persists after pack and charger stabilize indoors.

  Temperature delay persists after pack and charger 1. Unplug charger; move pack and charger to a dry indoor area.

• Pressing and holding the state-of-charge button produces no LED indication at room temperature.

  Pressing and holding the state-of-charge button 1. Remove pack and hold the gauge button indoors.

• The full-indicating pack runs a task far less than a healthy pack.

  The full-indicating pack runs a task far less than a 1. Fully charge pack, rest indoors, and record the gauge.

• A contact is pitted, loose, melted, discolored, or arcs in use.

  SYMPTOM STEPS

• Two known-good compatible tools give no response with the charged pack.

  Two known-good compatible tools give no response 1. Remove pack; inspect shell, latch, rails, contacts, and gauge.

• The cool, fully charged pack starts a verified tool, then shuts it off during a brief no-load or light-load test.

  The cool, fully charged pack starts a verified tool, then 1. Release control, remove pack, and eliminate the tool load.

• The pack overheats or repeatedly triggers thermal shutdown during a verified light task after starting cool.

  The pack overheats or repeatedly triggers thermal 1. Release control, set tool down, and remove pack only if safe.

• A powered compatible charger shows no response to the seated pack.

  A powered compatible charger shows no response to 1. Unplug charger; remove pack and inspect both dry interfaces.

• The pack will not slide fully, latch securely, or release normally.

  The pack will not slide fully, latch securely, or release 1. Support both items; stop forcing, twisting, or prying.

• The pack is swollen, leaking, hissing, smoking, burning, crushed, wet, or opened.

  The pack is swollen, leaking, hissing, smoking, 1. Clear people from the area; do not handle a hot or venting pack.

• The pack gets excessively hot, smells, discolors, or stops charging.

  The pack gets excessively hot, smells, discolors, or 1. Unplug AC first; remove pack only if safe and isolate it.

• FM-13: PACK BECOMES ABNORMALLY HOT WHILE CHARGING

  FM-13 PACK BECOMES ABNORMALLY HOT WHILE CHARGING

• FM-05: HOT-COLD DELAY PERSISTS AT ROOM TEMPERATURE

  FM-05 HOT-COLD DELAY PERSISTS AT ROOM TEMPERATURE

• FM-01: BATTERY HAS NO OUTPUT IN VERIFIED TOOLS

  FM-01 BATTERY HAS NO OUTPUT IN VERIFIED TOOLS

• FM-06: PACK CUTS OUT UNDER A LIGHT LOAD WHILE COOL

  FM-06 PACK CUTS OUT UNDER A LIGHT LOAD WHILE COOL

• FM-10: FUEL-GAUGE BUTTON PRODUCES NO LEDS

  FM-10 FUEL-GAUGE BUTTON PRODUCES NO LEDS

• FM-16: IMMEDIATE BATTERY SAFETY HAZARD

  FM-16 IMMEDIATE BATTERY SAFETY HAZARD

• FM-11: FUEL-GAUGE READING IS UNSTABLE OR IMPLAUSIBLE

  FM-11 FUEL-GAUGE READING IS UNSTABLE OR IMPLAUSIBLE

• FM-14: PACK BECOMES ABNORMALLY HOT DURING TOOL USE

  FM-14 PACK BECOMES ABNORMALLY HOT DURING TOOL USE

• FM-07: POWER IS WEAK UNDER A VERIFIED LOAD

  FM-07 POWER IS WEAK UNDER A VERIFIED LOAD

• FM-08: RUNTIME IS MUCH SHORTER THAN NORMAL

  FM-08 RUNTIME IS MUCH SHORTER THAN NORMAL

• FM-04: CHARGE STARTS BUT NEVER COMPLETES

  FM-04 CHARGE STARTS BUT NEVER COMPLETES

• FM-15: TERMINALS ARE BURNED, PITTED, MELTED, OR ARC

  FM-15 TERMINALS ARE BURNED, PITTED, MELTED, OR ARC