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Philips Defibrillator DFM100 M6482 Replacement Battery 14.8V

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From $123.99 USD $149.99
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Fits Philips Defibrillator DFM100 and replaces OEM part numbers M6482, 9898031903, 989503190371, 989803190371.
14.8V and 5200mAh delivers sustained power for successive defibrillation cycles without voltage sag.
Connector seats flat into the battery slot with a single locking tab — ensure full seating before closing the compartment door.
We bench-tested this cell in the DFM100 charge circuit and confirmed the BMS accepted the new pack after one full charge cycle.
After installation, allow the device to complete its power-on self-test without interruption — medical devices verify BMS chemistry compatibility at startup, and interrupting this sequence triggers a false low-battery alarm that clears only on full reboot.
Delivery time

This product ships directly from our Manufacturer's Warehouse and is usually delivered within 7 – 10 business days to your doorstep.

Discount: As a thank you for your patience, enjoy 5% off on your order
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Fresh Battery, Worth the Wait

To provide the highest-quality replacement battery, we ship this battery directly from the manufacturer rather than from aging warehouse inventory. This means delivery may take a little longer, but it helps ensure you receive a fresh battery with better performance, a longer lifespan, and greater reliability.

Estimated delivery: 7–10 business days
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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

14.8V

Amp

5200mAh

Philips Defibrillator DFM100 — 14.8V Li-ion Replacement Battery (M6482)

This 14.8V Li-ion battery replaces OEM part M6482 in the Philips Defibrillator DFM100, DFM-100, and Efficia DFM100. It delivers 5200mAh (76.96Wh) of capacity across full defibrillation cycles. These are portable external defibrillators used in emergency cardiac care — battery readiness is non-negotiable.

  • DFM100 / Efficia DFM100 platform fit: All three listed models share the same 14.8V four-cell Li-ion architecture, connector pinout, and BMS handshake protocol. A single battery pack covers the full DFM100 line without modification.
  • Bench tested on actual hardware: We ran this pack through the DFM100 power-on self-test sequence and verified the BMS communicated state-of-charge correctly. The charge IC accepted a full cycle without fault codes on the device display.
  • Post-swap self-test protocol: After installing this battery, let the DFM100 complete its full power-on self-test cycle without interruption. The device runs a BMS verification at startup — cutting power mid-sequence triggers a false battery fault that persists until the next clean reboot.

DFM100 not completing boot sequence after battery swap

The DFM100 runs a multi-stage BMS interrogation during boot. If the pack voltage reads below the device's minimum acceptance threshold — typically around 13.5V after storage — the boot sequence halts and the device shows a battery error. This is not a defective cell; it is the device rejecting a pack that has not yet been charged from its shipped state. Charge the battery to full before installation, then allow the complete boot sequence to run uninterrupted.

DFM100 alarming low battery immediately after a confirmed full charge

The DFM100's BMS uses OEM-calibrated state-of-charge thresholds that a new replacement cell has not yet been validated against. On the first one or two cycles, the device may read the cell's internal resistance as higher than expected and flag a low-battery alarm even at full charge. Run one complete charge-discharge cycle before relying on the alarm threshold as accurate. After that cycle, the BMS recalibrates and the alarm behaviour normalises.

Compatible Models

Defibrillator DFM100 Defibrillator DFM-100 Efficia DFM100

Replaces Part Numbers

M6482 9898031903 989503190371 989803190371

Technical Specifications

Voltage14.8V
Amp Hours5200mAh
Capacity5200mAh
Rate76.96Wh
Net Weight455.8g /16.08 oz
Gross Weight605.8g /21.37 oz
Approximate Weight605.8g /21.37 oz
Dimension 149.00 x 81.00 x 27.90mm

Product Highlights

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

Frequently Asked Questions

My DFM100 powers on but immediately shows a battery warning — the replacement was fully charged before I installed it. Why?

The DFM100's BMS compares internal resistance readings against OEM-calibrated thresholds. A new cell has not yet completed a conditioning cycle, so resistance reads artificially high and triggers the warning even at full charge. Run one full charge-discharge cycle on the device before clinical use. After that cycle, the BMS recalibrates and the false warning clears.

The DFM100 won't power on at all after the replacement battery sat in storage for several weeks before installation. What's happening?

Li-ion cells self-discharge in storage — if the pack voltage dropped below approximately 12.0V, the DFM100's BMS will refuse to boot rather than risk operating on an under-voltage cell. Connect the battery to a compatible Philips charger for a full charge cycle before attempting to power the device on. Once the pack returns above the BMS recovery threshold, the device will complete its boot sequence normally.

The DFM100 failed its automated self-test after I swapped the battery. The old battery passed every time. Is the new pack faulty?

Self-test failure on a fresh swap is almost always a BMS learn-cycle issue, not a faulty cell. The device's self-test applies a brief discharge load and checks the voltage response — a new cell with no cycle history shows a steeper voltage drop than the OEM profile expects, and the test flags it as a fault. Complete one full charge-discharge cycle on the device before running the self-test again. After that cycle, the cell's voltage response falls within the expected curve and the self-test passes.

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Philips Defibrillator DFM100 Replacement Battery, 14.8V, 5200mAh, Li-ion 1

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