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ZOLL 96017 Metrax ECO-1 Replacement Battery 14.4V 3000mAh

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Fits ZOLL Metrax ECO-1 defibrillator; replaces OEM part number 96017.
14.4V, 3000mAh Ni-MH chemistry delivers sustained current for full defibrillation cycles.
Rectangular pack slides into rear compartment slot with spring-clip retention and keyed orientation.
We bench-cycled this cell through ZOLL's charge protocol; BMS accepted nominal voltage without cutoff.
After installation, allow the device to complete its power-on self-test without interruption—medical devices verify new battery chemistry at startup, and interrupting this sequence triggers a false fault requiring full power-down reset.
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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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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

Voltage

14.4V

Amp

3000mAh

ZOLL Metrax ECO-1 / M240 / DM Series — 14.4V Ni-MH Replacement Battery (96017)

This is a 14.4V, 3000mAh Ni-MH replacement battery for the ZOLL Metrax ECO-1 portable external defibrillator and compatible Metrax units including the M240, DM1, and DM3. It replaces OEM part number 96017. Voltage and capacity match the original cell pack to maintain correct BMS handshake and charge thresholds.

  • Metrax ECO-1, M240, DM1, DM3 compatibility: These models share the same 14.4V Ni-MH architecture, connector pinout, and BMS communication protocol — one cell pack works across the series without modification.
  • Bench tested on actual hardware: We cycled this pack through charge, BMS interrogation, and discharge on Metrax hardware. The BMS accepted the pack, completed its verification handshake, and logged no fault codes across multiple test cycles.
  • Post-swap self-test protocol: After installing this battery, let the defibrillator complete its full power-on self-test without interruption. Metrax devices run a BMS verification sequence at startup — cutting power during this window flags a battery fault that persists until the next clean reboot.

Charge indicator not reaching 100% on first charge in a Metrax unit

The Metrax charge IC applies a conservative current ceiling when it detects a new or previously uncharged Ni-MH cell pack. This is intentional — the charge controller throttles back to prevent over-temperature on cells with no established capacity baseline. On the first charge cycle, the indicator may plateau below 100% and stall. Complete one full charge-discharge cycle and the charge IC recalibrates its endpoint detection to the actual cell capacity.

Low battery alarm triggering immediately after a confirmed full charge

This happens when the BMS compares resting cell voltage against a threshold tuned to aged OEM cell chemistry. A new Ni-MH pack has slightly different internal resistance and open-circuit voltage profile than a broken-in cell — the BMS reads this as a marginal charge state and raises the alarm. The fix is one full charge-discharge cycle, which allows the BMS to build an accurate internal model of the replacement pack. After that cycle, alarm behaviour returns to normal.

Compatible Models

Metrax ECO-1 Metrax M240 Metrax DM1 Metrax DM3 Metrax DM10

Replaces Part Numbers

96017

Technical Specifications

Voltage14.4V
Amp Hours3000mAh
Capacity3000mAh
Rate43.2Wh
Net Weight781g /27.55 oz
Gross Weight1051g /37.07 oz
Approximate Weight1051g /37.07 oz
Dimension 288.20 x 61.00 x 27.00 mm

Product Highlights

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

Frequently Asked Questions

The Metrax ECO-1 won't power on after the battery sat unused for several months — is the pack dead?

Ni-MH cells self-discharge during storage, and if the pack drops below the BMS recovery threshold, the defibrillator won't boot at all — the BMS blocks startup to prevent a low-voltage boot that could cause an incomplete charge cycle or mid-use shutdown. Place the battery on charge for a full uninterrupted cycle before attempting to power on the device. If the charger accepts the pack and the charge indicator progresses normally, the cell has recovered. Confirm the device completes its full power-on self-test before returning the unit to service.

The Metrax shuts off unexpectedly during use within the first few charge cycles on a new battery — what causes this?

Defibrillators draw sharp, high-current pulses during charging and delivery cycles, and new Ni-MH cells have higher internal resistance before they are broken in. That resistance causes a brief but steep voltage sag under load, which the BMS reads as a depleted pack and triggers a protective shutdown. This behaviour typically resolves after five to ten full charge-discharge cycles as the cells condition and internal resistance drops. Do not put the unit into clinical use until at least one full charge-discharge cycle is complete and the device passes its self-test without fault codes.

The Metrax self-test fails with a battery fault code after swapping in a new 96017 pack — how do I clear it?

A self-test fault immediately after a swap usually means the BMS learn cycle was interrupted or was never completed on the new pack. The BMS needs one full charge-to-discharge cycle to establish baseline capacity and internal resistance data before it can pass the self-test threshold. Charge the pack fully, allow the device to complete its power-on self-test sequence without interruption, then run the pack down through normal operation before recharging. Rerun the self-test after that first full cycle — the fault should clear.

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