model
GBA18V40
The GBA18V40 is a 4.0 Ah, 18V lithium-ion battery from Bosch's CORE18V series, designed for Bosch and AMPShare 18V cordless tools. It features Bosch-exclusive CoolPack 2.0 cooling technology, a high-resolution charge-status indicator, and electronic protection to optimize performance and safety.
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Model details
Model number: GBA18V40
Also known as: Bosch Power Tools, Bosch CORE18V, Bosch 18V Battery, GBA18V40 CORE18V 4 Ah Advanced Power Battery, GBA18V40
Symptoms
- The battery is cool and dry but the outer shell is cracked, split, punctured, missing a piece, or open at a seam, with no smoke, liquid, swelling, odor or dangerous heat.
The battery is cool and dry but the outer shell is cracked, split, 1. Remove the pack from every device and place the cool dry battery on a clear
- The pack is fully seated, the release button is pressed, and the battery still cannot be slid out without excessive force.
The pack is fully seated, the release button is pressed, and the 1. Let the pack and receiver cool, support both so neither hangs from the latch, and
- The battery shows a credible high charge or has just completed a proven charge, remains fully latched and still gives no response in a known-good compatible tool while stationary.
The battery shows a credible high charge or has just 1. Remove the pack, screen for damage or heat, and dry-clean only the accessible
- A compatible charger continues to report its temperature-delay state after the battery has stabilized at room temperature and the charger works normally with another compatible battery.
A compatible charger continues to report its temperature-delay 1. Remove the pack and let it stabilize naturally at room temperature on a clear
- The battery reaches the normal seated position, but the release latch does not retain it and the pack can slide away without pressing the release button.
The battery reaches the normal seated position, but the 1. Support the receiver and remove the unretained battery before it can fall,
- With the pack removed and cool, one or more accessible power, signal or temperature contacts are visibly bent, pushed in, pitted, loose or corroded, with no active heat, smoke, liquid or melting.
With the pack removed and cool, one or more accessible 1. Remove the battery from all devices and place it on a nonconductive surface
- The pack starts and runs a known-good compatible tool at no load, but output stops promptly during an ordinary matched task that a known-good battery completes.
The pack starts and runs a known-good compatible tool at no 1. Stop the task when output cuts off and remove the pack; inspect for unusual heat,
- The cool dry battery shell appears closed, but a new loose rattle, clunk or shifting movement is heard inside after a drop or impact, with no swelling, liquid, smoke, odor or heat.
The cool dry battery shell appears closed, but a new loose 1. Remove the pack from every device and place it on a clear nonflammable surface.
- The GBA18V40 starts onto the receiver rails but binds before reaching the normal seated and latched position.
The GBA18V40 starts onto the receiver rails but binds before 1. Stop forcing and withdraw the binding battery straight from the receiver without
- Battery repeatedly overheats or protection-stops during light use
FM-16 BATTERY REPEATEDLY OVERHEATS OR FM-22 ACTIVE BATTERY HAZARD - SWELLING, LIQUID,
- 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
- A known-good compatible charger begins its normal charging cycle, but the cycle repeatedly stops, restarts, faults, or continues abnormally without reaching completion.
A known-good compatible charger begins its normal charging 1. Remove the pack when the abnormal cycle appears and inspect for heat, liquid,
Failure Modes
- FM-22 ACTIVE BATTERY HAZARD - SWELLING, LIQUID, SMOKE, SPARKS, MELTING, ODOR, OR DANGEROUS HEAT
The battery exhibits active hazard signs such as swelling, leakage, smoke, sparks, melting, strong odor, or dangerous heat during charging, use, or storage.
- FM-07: FM-07 Remove the pack and screen it for hazard before repeating any charge
Remove the pack and screen it for hazard before repeating any charge
- CHARGE-STATUS INDICATOR GIVES NO RESPONSE AFTER A CONFIRMED FULL CHARGE
CHARGE-STATUS INDICATOR GIVES NO RESPONSE AFTER A CONFIRMED FULL CHARGE
- FM-10: FM-10 CHARGER REPORTS FULL, BUT THE BATTERY HAS ALMOST NO USABLE ENERGY
The charger indicates a full charge, but the battery holds almost no usable energy and runs tools only briefly or not at all.
- FM-16: FM-16 BATTERY REPEATEDLY OVERHEATS OR PROTECTION-STOPS DURING LIGHT USE
The battery repeatedly overheats or triggers protection shutdowns during light intermittent use at room temperature.
- FM-05: CHARGE-STATUS INDICATOR GIVES NO RESPONSE
CHARGE-STATUS INDICATOR GIVES NO RESPONSE
Related troubleshooting
Common symptoms
- The battery is cool and dry but the outer shell is cracked, split, punctured, missing a piece, or open at a seam, with no smoke, liquid, swelling, odor or dangerous heat.
- The pack is fully seated, the release button is pressed, and the battery still cannot be slid out without excessive force.
- The battery shows a credible high charge or has just completed a proven charge, remains fully latched and still gives no response in a known-good compatible tool while stationary.
- A compatible charger continues to report its temperature-delay state after the battery has stabilized at room temperature and the charger works normally with another compatible battery.
- The battery reaches the normal seated position, but the release latch does not retain it and the pack can slide away without pressing the release button.
- With the pack removed and cool, one or more accessible power, signal or temperature contacts are visibly bent, pushed in, pitted, loose or corroded, with no active heat, smoke, liquid or melting.
- The pack starts and runs a known-good compatible tool at no load, but output stops promptly during an ordinary matched task that a known-good battery completes.
- The cool dry battery shell appears closed, but a new loose rattle, clunk or shifting movement is heard inside after a drop or impact, with no swelling, liquid, smoke, odor or heat.
- The GBA18V40 starts onto the receiver rails but binds before reaching the normal seated and latched position.
- Battery repeatedly overheats or protection-stops during light use