Search repair guides
Find repair guides, manuals, symptoms, and error codes across the knowledge base.
Temperature delay persists after pack and charger stabilize indoors.
The pack will not slide fully, latch securely, or release normally.
The full-indicating pack runs a task far less than a healthy pack.
Charging begins but never reaches full, or the pack remains unusable.
The pack gets excessively hot, smells, discolors, or stops charging.
Power drops in normal handling while the pack shifts or feels loose.
A powered compatible charger shows no response to the seated pack.
The pack is swollen, leaking, hissing, smoking, burning, crushed, wet, or opened.
The cool, fully charged pack starts a verified tool, then shuts it off during a brief no-load or light-load test.
Pressing and holding the state-of-charge button produces no LED indication at room temperature.
A contact is pitted, loose, melted, discolored, or arcs in use.
Tool output is much lower with this pack than with a known-good pack.
After trigger release, the bit or square drive coasts noticeably longer than normal before stopping.
Charger green LED stays on
Stored alone, the pack loses substantial charge without use.
Two known-good compatible tools give no response with the charged pack.
The motor can be heard, but the front output remains still in both directions with the bit removed.
The trigger returns normally and power drops, but the anvil repeatedly coasts instead of stopping promptly.
A straight bit traces a visible circle at no load instead of rotating on a stable centerline.
WORKLIGHT COMES ON, BUT THE MOTOR WILL NOT START
FM-05: HOT-COLD DELAY PERSISTS AT ROOM TEMPERATURE
FM-02: PACK WILL NOT SEAT, LATCH, OR RELEASE
FM-03: COMPATIBLE CHARGER SHOWS NO CHARGE RESPONSE
FM-01: BATTERY HAS NO OUTPUT IN VERIFIED TOOLS
FM-04: CHARGE STARTS BUT NEVER COMPLETES
FM-08: RUNTIME IS MUCH SHORTER THAN NORMAL
FM-10: FUEL-GAUGE BUTTON PRODUCES NO LEDS
FM-11: FUEL-GAUGE READING IS UNSTABLE OR IMPLAUSIBLE
FM-13: PACK BECOMES ABNORMALLY HOT WHILE CHARGING
FM-07: POWER IS WEAK UNDER A VERIFIED LOAD
FM-16: IMMEDIATE BATTERY SAFETY HAZARD
FM-09: PACK LOSES CHARGE WHILE STORED
FM-12: POWER IS INTERMITTENT WHEN THE PACK MOVES
FM-14: PACK BECOMES ABNORMALLY HOT DURING TOOL USE
FM-06: PACK CUTS OUT UNDER A LIGHT LOAD WHILE COOL
FM-15: TERMINALS ARE BURNED, PITTED, MELTED, OR ARC
FM-15: FM-15 BATTERY LOSES CHARGE RAPIDLY WHILE STORED DISCONNECTED
fm-3-2: CHARGE-STATUS INDICATOR GIVES NO RESPONSE AFTER A CONFIRMED FULL CHARGE
FM-06: HOT/COLD DELAY REMAINS AFTER THE PACK RETURNS TO ROOM TEMPERATURE
FM-16: FM-16 BIT WILL NOT RELEASE, OR A SHORT OR BROKEN BIT IS TRAPPED
Upper and lower battery housing
Slide rails and guide features
Protection and control assembly
Release button and latch
External terminal array
Lithium-ion cell assembly
Damaged-lithium recycling route
Cool known-good Bosch 18V battery
Correct impact bit
Half-inch impact socket
Impact socket
A compatible 12V MAX* battery pack
An approved battery charger
A straight round-shank drill bit
workpiece
Charger and indicator
Gloves
Driver bit or bit holder
Mode or torque collar
On-board bit holder