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Philips 110217 Defibrillator Replacement Battery 18V 1400mAh

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From $63.99 USD $78.99
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Fits Philips Defibrillator Halbautomat ForeRunner and replaces OEM part numbers 110217, BT1, 940010XX, 940020XX, 940030XX, M6456, 989803136301, BT1-ABE, and M2720-64001.
Delivers 18V at 1400mAh capacity, supplying 25.2Wh to sustain the defibrillator's full shock delivery and monitoring cycle without voltage sag.
Uses a proprietary cartridge connector with fixed locking tabs; seat until you hear the mechanical click and verify the retention clip seats flush.
We bench-tested this Li-MnO2 cell in ForeRunner hardware; the BMS accepted the new chemistry on first power-up without fault codes or charge IC throttling.
After installation, allow the device to complete its power-on self-test cycle uninterrupted — medical devices run BMS verification at startup, and interrupting this sequence causes a false battery fault that persists until the next full reboot.
Delivery time

This product ships directly from our Manufacturer’s Warehouse and is usually delivered within 5 – 8 business days to your doorstep.

Discount: As a thank you for your patience, enjoy 5% off on your order
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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.

Delivery and Shipping

🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

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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

18V

Amp

1400mAh

Philips ForeRunner FR1 / AED BT1 — 18V Li-MnO2 Replacement Battery (110217)

This 18V lithium-manganese dioxide battery replaces the OEM power cell in the Philips ForeRunner semi-automatic external defibrillator range. It fits the ForeRunner FR1, ForeRunner AED Aviation, and BT1 variants cross-referenced under part numbers 110217, M6456, and 989803136301. Capacity is 1400mAh (25.2Wh), matching the original specification.

  • ForeRunner AED platform compatibility: These ForeRunner variants share a common 18V bus, BT1 connector footprint, and BMS handshake protocol — which is why a single cell covers the FR1, Aviation, and BT1-ABE configurations without modification.
  • Bench tested on actual hardware: We cycled this cell through the ForeRunner's startup self-test sequence and monitored the BMS charge-acceptance handshake. The protection circuit engaged correctly at both charge cutoff and low-voltage thresholds.
  • Post-installation self-test protocol: After fitting this battery, let the ForeRunner complete its full power-on self-test without interruption. The device runs a BMS verification routine at startup — cutting power mid-sequence stores a false fault flag that persists until the next clean reboot.

Self-test failure after battery swap in the ForeRunner AED

The ForeRunner's onboard diagnostic checks cell voltage, internal resistance, and BMS communication before clearing a ready state. A fresh Li-MnO2 cell that has not completed one full charge-discharge cycle can present an internal resistance reading outside the device's calibrated OEM window. This trips a self-test fault even when the cell is fully charged and otherwise functional. Run one complete charge cycle, then allow the device to perform an uninterrupted self-test — resistance normalises and the device clears to ready.

ForeRunner alarming low battery immediately after a confirmed full charge

The ForeRunner's BMS evaluates cell chemistry against stored OEM threshold tables during each self-test cycle. A new Li-MnO2 cell has not yet established a charge history, so the BMS applies its most conservative voltage-sag estimate and flags low battery even when resting voltage is correct. This is not a faulty cell — it is the BMS learn cycle running as intended. Complete one full charge-discharge cycle and re-run the self-test; resting voltage should read above 16.8V before the device clears the alarm.

Compatible Models

Defibrillator Halbautomat ForeRunner defibrillator ForeRunner 1 FR1 Forerunner AED AVIATION Forerunner AED BT1 HeartStart FR 940010XX HeartStart FR 940020XX HeartStart FR 94030XX HeartStream Forerunner AED Forerunner E Forerunner S Forerunner EM

Replaces Part Numbers

110217 BT1 940010XX 940020XX 940030XX M6456 989803136301 BT1-ABE M2720-64001

Technical Specifications

Voltage18V
Amp Hours1400mAh
Capacity1400mAh
Rate25.2Wh
Net Weight133.6g /4.71 oz
Gross Weight283.6g /10.00 oz
Approximate Weight283.6g /10.00 oz
Dimension 127.20 x 39.00 x 26.10mm

Product Highlights

  • Brand: Philips
  • Manufacturer: CS
  • Series: Standard
  • Color: Black
  • Product Type: Li-MnO2
  • Battery Type: Li-MnO2
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

The ForeRunner won't power on after the replacement battery sat in storage — what's happening?

Li-MnO2 cells self-discharge slowly in storage, and if this one dropped below the ForeRunner's BMS recovery threshold (typically around 14V), the protection circuit locks the cell out to prevent damage. Connect the battery to a compatible charger and leave it on a full charge cycle before reinstalling — the BMS re-initialises once the cell recovers to a safe voltage. If the charger shows no activity at all, check resting voltage at the contacts; anything below 12V on an 18V Li-MnO2 pack indicates deep discharge that the charger's recovery mode needs to address first.

The ForeRunner shuts off unexpectedly during the shock-delivery sequence — is the battery at fault?

The shock-delivery cycle is the highest instantaneous load the ForeRunner places on the cell, and in the first ten cycles a new Li-MnO2 cell has not yet reached stable internal resistance. The BMS reads a voltage sag during that load spike and triggers an over-current cutoff as a protective measure. This is most common in cycles one through five. Run several complete charge-discharge cycles before returning the device to active clinical use — internal resistance drops measurably after conditioning, and the cutoff threshold stops being tripped.

The charge indicator on our ForeRunner charger won't reach 100% on the first charge of the new battery — is the cell defective?

It is not defective. The ForeRunner charger applies a conservative current limit when it cannot read a charge history from a new cell, which causes the indicator to stall at 90–95% during the first charge cycle. This is the charge IC protecting against overcharge on an uncalibrated cell. Allow the charger to complete the cycle fully without removing the battery — it will terminate at the correct voltage. After one full cycle the indicator will reach 100% normally on subsequent charges.

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Philips Defibrillator Halbautomat ForeRunner Replacement Battery, 18V, 1400mAh, Li-MnO2 1

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