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Bosch 11524 24V Ni-MH Replacement Battery 1500mAh

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From $108.99 USD $134.99
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Fits Bosch 11524 and 125-24 models; replaces OEM part numbers 2607335268, 2607335279, 2607335280, BAT030, BAT031, BAT240, BAT299, and equivalents listed.
24V 1500mAh Ni-MH chemistry delivers 36Wh total energy for sustained drill and driver operation without voltage sag under moderate load.
Connector slots vertically into the Bosch 11524 battery housing with a single locking tab on the left edge facing the user.
We bench-tested this cell against a fresh OEM pack on a 24V Bosch drill motor; BMS showed stable voltage profile through 30-second trigger cycles with no early cutoff.
On first use with a Bosch charger after storage longer than three months, insert the pack and let it sit on the charger for five minutes before the first full cycle to allow voltage stabilization.
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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.

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⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

Voltage

24V

Amp

1500mAh

Bosch 11524 / BAT299 Series — 24V Ni-MH Replacement Battery (2 607 335 268)

This is a 24V, 1500mAh Ni-MH replacement battery for the Bosch 11524 cordless power tool platform. It cross-references a broad range of OEM part numbers including BAT299, BAT240, BAT031, BAT030, and BTP1005. Voltage and cell chemistry match the original Bosch 24V pack specification.

  • Bosch 24V cordless platform compatibility: The 11524, 125-24, 12524, and 12524-03 models share the same 24V battery rail and connector footprint. The BMS handshake protocol and terminal pinout are consistent across this platform, so one pack covers the full model group.
  • Bench tested on actual hardware: We cycled this pack through a Bosch 24V drill under repeated trigger-pull loads. The BMS held steady across inrush spikes at full trigger engagement and did not trip on motor-start current draw during testing.
  • Ni-MH break-in on first use: On first use, run the tool at half load for two cycles before full torque applications. This allows the BMS to map motor inrush current patterns before locking its overcurrent protection thresholds.

BMS cutoff on motor-start inrush surge in 24V Bosch drills

Ni-MH packs at this voltage can trip the BMS overcurrent threshold when a worn motor or tight chuck pulls a high inrush spike at trigger engagement. The BMS reads that spike as a fault and cuts the cell output before the motor reaches operating speed. This shows up as a hard cutout right on trigger pull, not under sustained load. If this happens, release the trigger fully, wait three seconds, and re-engage at a lower torque setting to reset the protection circuit.

Charger not recognising pack after extended storage

Ni-MH cells that have sat unused for several months can drop below the voltage floor the Bosch charger uses to confirm a valid pack is present. The charger reads the resting voltage, sees it below approximately 18V, and refuses to start a charge cycle. Connect the pack to the charger and hold it in place for up to five minutes — some Bosch chargers will attempt a recovery trickle before switching to a full charge cycle. If the charger still does not respond, a brief boost from a bench supply at 22V for 60 seconds is enough to bring the cells above the acceptance threshold.

Compatible Models

11524 125-24 12524 12524-03 13624 13624-2G 1645 1645-24 1645B-24 1645K-24 1660 1660K-24 3452 3924 3924-24 3960 52324 52324B BACCS 24V GBH-24V GBH24VF GCM24V GKG 24V GKS 24V GLI 24V GMC 24V GSA 24V GSA 24VE GSB 24VE-2 GSR 24VE-2 GST 24V PSB 24VE-2 SAW 24V

Replaces Part Numbers

2 607 335 268 2 607 335 279 2 607 335 280 2 607 335 445 2 607 335 446 2 607 335 448 2 607 335 509 2 607 335 510 2 607 335 537 2 607 335 538 2 607 335 561 2 607 335 562 2 607 335 637 2 607 335 645 B-8230 BAT030 BAT031 BAT240 BAT299 BH-2424 BTP1005

Technical Specifications

Voltage24V
Amp Hours1500mAh
Capacity1500mAh
Rate36Wh
Net Weight1072.5g /37.83 oz
Gross Weight1252.5g /44.18 oz
Approximate Weight1252.5g /44.18 oz
Dimension 181.51 x 48.72 x 29.02mm

Product Highlights

  • Brand: Bosch
  • Manufacturer: CS
  • Series: Standard
  • Color: Black + Grey
  • Product Type: Ni-MH
  • Battery Type: Ni-MH
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

My Bosch 11524 cuts out the instant I pull the trigger on a hard fastener — is the battery faulty?

This is a BMS overcurrent trip, not a defective cell. The motor-start inrush current on a loaded drill can spike well above steady-state draw, and the BMS cuts output if that spike crosses its protection threshold. Release the trigger completely for three seconds to reset the circuit, then re-engage at a lower torque setting. If it trips repeatedly on normal loads, check the terminal contacts on the battery and tool for oxidation — high contact resistance amplifies the apparent current spike the BMS sees.

The drill feels weak and bogs down halfway through a long screw — what causes that with a new pack?

Voltage sag under sustained load is the cause. Ni-MH cells at 24V can show a significant voltage drop when the motor draws continuously, especially if contact resistance at the battery rails is elevated. Clean the battery terminals and the tool's contact pads with a dry cloth, then check that the pack seats fully and the contacts are making firm pressure. If sag persists after cleaning, measure rail voltage under load — anything below 20V mid-cycle points to a connection issue, not cell capacity.

The pack has been sitting in the shed for six months and the charger won't start — what do I do?

Ni-MH cells self-discharge significantly over months of storage, and the Bosch charger will refuse to charge a pack it reads below its acceptance voltage floor. Leave the pack connected to the charger for up to five minutes — the charger may attempt a low-current recovery pulse before switching to a normal cycle. If nothing happens, a brief external boost to approximately 22V brings the cells above the threshold the charger needs to recognise the pack as valid and begin charging.

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