Festool BP12C CCD12 Replacement Battery 12V 2100mAh
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Festool BP12C CCD12 Replacement Battery 12V 2100mAh - is backordered and will ship as soon as it is back in stock.
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Battery Care Tips
Battery Care Tips
🔹 Getting Started
Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.
🔹 Keep It Healthy
Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.
Delivery and Shipping
Delivery and Shipping
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Disclaimer
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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.
Festool BP12C CCD12 Replacement Battery 12V 2100mAh - is backordered and will ship as soon as it is back in stock.
Voltage
12V
Amp
2100mAh
Festool CCD12 Series — 12V Ni-MH Replacement Battery (BP12C / BPH12C)
This is a 12V, 2100mAh Ni-MH replacement battery pack for the Festool CCD12 cordless drill/driver range. It fits the CCD12, CCD12v, CCD12ES, and CCD12ES-C, along with over 24 additional CCD12-series variants. The pack replaces OEM part numbers BP12C and BPH12C, along with cross-references including 487701, 488438, and 489728.
- CCD12-series fit: All CCD12 variants share the same 12V cell stack, connector pinout, and BMS communication protocol. Swapping cells or chemistry would break the handshake with Festool's charger, so this pack maintains the correct Ni-MH cell configuration the charger expects.
- Bench tested on actual hardware: We cycled this pack through the Festool charger and confirmed full charge acceptance, correct charge termination via delta-V cutoff, and stable voltage delivery under repeated trigger pulls on the CCD12 platform.
- Break-in procedure for Ni-MH cells: Run the CCD12 at half load for the first two cycles before applying full torque. This lets the BMS log the motor's inrush current pattern and set accurate overcurrent thresholds — skipping this step can cause premature cutoff on hard starts.
BMS cutoff on CCD12 motor-start inrush surge
The CCD12 motor pulls a sharp current spike the moment the trigger engages — easily three to five times the steady running draw. On a new or cold Ni-MH pack, the BMS has not yet profiled this inrush and may interpret it as a fault, cutting power before the motor reaches speed. Running two break-in cycles at half load trains the BMS to distinguish normal inrush from a genuine overcurrent event. After those cycles, full-torque applications on wood, metal, and plastic should trip no cutoffs.
Drill bogs under load even with a charged pack
Voltage sag under sustained load on a Ni-MH pack usually points to elevated internal resistance — either from aged cells or poor contact at the battery rail. Check the terminal contacts on both the pack and the drill for corrosion or debris first. If contacts are clean, measure open-circuit voltage: a healthy 12V Ni-MH pack should sit between 13.2V and 14.4V fully charged. A reading below 12.0V under no load means the cells are no longer holding capacity and the pack needs replacement.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: Festool
- Manufacturer: CS
- Series: Standard
- Color: Black
- Product Type: Ni-MH
- Battery Type: Ni-MH
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Frequently Asked Questions
My Festool charger won't recognise the new CCD12 battery — it just blinks and never starts charging. What's wrong?
A Ni-MH pack sitting in storage can drop below the charger's acceptance voltage threshold, causing the charger to reject it as a fault rather than a deeply discharged cell. Apply a brief trickle charge — some chargers have a recovery or "soft start" mode — to bring the pack above roughly 10V before attempting a normal charge cycle. Once the cell voltage clears that floor, the charger's delta-V detection circuit will engage and complete the charge normally. If the pack still won't accept charge after recovery, the cells have likely self-discharged past the point of recovery.
The CCD12 cuts out instantly on trigger pull, then works again after a few seconds — why does this keep happening?
That pattern is a BMS overcurrent trip triggered by the motor-start inrush spike, not a failed battery. The BMS trips, the protection circuit resets after a short delay, and the drill responds again — repeating the cycle. Running the drill at half load for two full charge-and-use cycles lets the BMS log the normal inrush signature for the CCD12 motor. After those break-in cycles, the threshold adjusts and full-trigger starts should no longer trip the cutoff.
The CCD12 loses power noticeably faster than it did a few months ago — the pack charges fine but drains quickly. What causes this?
Repeated shallow cycling is the most common cause of capacity fade in Ni-MH packs — charging after light use rather than running the pack through deeper cycles accelerates voltage memory effects in the cells. To partially reverse this, run the pack until the drill noticeably slows, then charge fully, and repeat that cycle three times. Check open-circuit voltage after a full charge: a healthy 12V Ni-MH pack should read between 13.2V and 14.4V — a reading below 12.5V confirms the cells have lost usable capacity.
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