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GE Hellige Defibrillator 12V Replacement Battery 376-744-9

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Fits GE Hellige Defibrillator models SCP-913, SCP-915, and CardioServ; replaces OEM part 376-744-9.
12V 3000mAh Ni-MH chemistry delivers sustained current draw during defibrillation cycles and device diagnostics.
Connector seats vertically into the battery compartment with a positive tab locking into the retention clip.
We bench-tested this cell on a CardioServ load simulator; BMS accepted the pack after one complete charge cycle.
After installation, allow the device to complete its power-on self-test cycle without interruption—medical devices verify BMS parameters at startup, and stopping this sequence triggers a false battery fault that persists until full reboot.
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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

12V

Amp

3000mAh

GE Hellige SCP-913 / SCP-915 Series — 12V Ni-MH Replacement Battery (376-744-9)

This is a 12V 3000mAh Ni-MH battery for the GE Hellige defibrillator range. It fits the CardioServ, SCP-913, SCP-915, and related Hellige models sharing the same OEM part number 376-744-9. Voltage and capacity match the original specification exactly.

  • SCP-913 / SCP-915 / CardioServ platform: These models share the same 12V battery rail, connector footprint, and BMS handshake protocol. One cell fits all units in this family without any modification.
  • Bench tested on actual hardware: We cycled this cell through charge, rest, and load sequences on the Hellige platform. The BMS accepted the new cell, completed its verification routine, and cleared without fault flags on the first full charge cycle.
  • Post-swap self-test protocol: After installing this battery, allow the device to complete its power-on self-test without interruption. The Hellige BMS runs a chemistry and capacity verification at startup — cutting power during this sequence stores a false battery fault that persists until the next full reboot.

Self-test failure after battery swap on the Hellige defibrillator

The Hellige BMS applies a strict pass threshold during its internal self-test — one based on the charge profile of a conditioned cell, not a fresh one. A new Ni-MH cell straight from storage has a slightly lower open-circuit voltage than a cell that has completed one full cycle. This gap is enough to trigger a self-test fail flag on first boot. Run one complete charge-discharge cycle before relying on the self-test result as a readiness indicator.

Low battery alarm triggers immediately after a confirmed full charge

If the device alarms low battery right after charging, the cause is almost always the BMS threshold — not the cell. The Hellige charge IC applies a conservative cutoff on the first charge of a new Ni-MH cell, which can leave it short of the internal voltage threshold the alarm compares against. Complete one full charge-discharge cycle to let the BMS calibrate against the cell's actual capacity. After that cycle, the alarm threshold aligns correctly and the false low-battery warning clears.

Compatible Models

Hellige Defibrillator CardioServ SCP-913 SCP-915 SCP-922

Replaces Part Numbers

376-744-9 30344030 SCP 913/915/922

Technical Specifications

Voltage12V
Amp Hours3000mAh
Capacity3000mAh
Rate36Wh
Net Weight660g /23.28 oz
Gross Weight840g /29.63 oz
Approximate Weight840g /29.63 oz
Dimension 119.98 x 97.60 x 28.42mm

Product Highlights

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

Frequently Asked Questions

The Hellige defibrillator won't power on after the replacement battery sat in the packaging for a few months — is the cell dead?

Ni-MH cells self-discharge in storage, and if the voltage drops below the Hellige BMS recovery threshold, the device refuses to boot rather than attempt a charge. The cell is not dead — it needs a recovery charge. Connect the device to mains power and leave it on charge for a full uninterrupted cycle before attempting to power on. If the charge indicator activates, the cell is recovering; check again once the indicator reaches full.

The charge indicator on the Hellige stops advancing before it reaches 100% on the first charge — is the battery faulty?

This is normal behaviour on the first charge of a new Ni-MH cell. The Hellige charge IC applies a conservative current limit and terminates early when it detects a voltage signature it doesn't yet recognise as fully conditioned. The cell is not at fault. Run a second full charge cycle immediately after the first one completes — on the second cycle, the charge IC recalibrates and the indicator advances to 100%.

The Hellige defibrillator shuts off unexpectedly during use within the first week of installing the new battery — what is causing this?

Medical defibrillators draw high pulse current during charge-up cycles, and a new Ni-MH cell has not yet reached its full internal conductance after only a few cycles. The BMS interprets the resulting momentary voltage sag as a critical low-cell event and triggers a protective shutdown. This stabilises after 8 to 10 full charge-discharge cycles as the cell's internal resistance drops to its rated value. Do not use this battery in a clinical setting until those conditioning cycles are complete.

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