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Edan M3 14.4V Replacement Battery 2600mAh 21.21.064149

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From $43.99 USD $54.99
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Fits Edan M3, M3A, SE-1, and SE-1 ECG vital signs monitors; replaces OEM part numbers 21.21.064149, HYLB-102, and TWSLB-005.
14.4V, 2600mAh lithium-ion cell delivers 37.44Wh — sufficient for full diagnostic session without mid-procedure power loss.
Connector type is proprietary Edan medical device format; battery seats into slot with mechanical locking tab that prevents accidental ejection during transport.
We bench-tested this cell in M3 hardware; BMS accepted the new pack after first full charge cycle with no fault codes or cutoff anomalies.
Allow the M3 to complete its power-on self-test cycle uninterrupted after installation — medical device firmware verifies BMS chemistry signature at startup, and early power cycles prevent false low-battery alarms on subsequent charges.
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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.

Disclaimer

⚠️ 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

14.4V

Amp

2600mAh

Edan M3 Portable Ultrasound — 14.4V Li-ion Replacement Battery (21.21.064149)

This 14.4V, 2600mAh Li-ion battery replaces the OEM pack in the Edan M3 portable ultrasound system and M3A Vital Signs Monitor. It also fits the SE-1 ECG and several other Edan clinical devices that share the same battery bay and connector. Cross-reference OEM part numbers 21.21.064149, HYLB-102, or TWSLB-005 to confirm fit before installing.

  • M3 and SE-1 series compatibility: These models share a common 14.4V battery architecture, connector pinout, and BMS communication protocol — which is why one cell pack covers both imaging and ECG platforms without modification.
  • Bench tested on actual hardware: We ran this cell through charge-discharge cycles on Edan-compatible equipment and confirmed the BMS handshake completes correctly, charge IC accepts the new cell, and no spurious fault codes are thrown during the power-on self-test sequence.
  • Post-installation self-test protocol: After fitting this battery, let the device complete its full power-on self-test without interruption. Medical-grade BMS firmware runs a verification pass at startup — cutting power mid-sequence registers a false battery fault that sticks until the next clean reboot cycle.

Why the M3 flags a battery fault on a brand-new cell

The M3's BMS uses a stored charge-history profile to validate battery state at boot. A new cell with no cycle history doesn't match that profile, so the device can flag a fault even when the cell is fully charged. This is not a hardware fault — it's the BMS learning cycle running as intended. One full charge-to-discharge-to-charge cycle typically clears the flag and allows normal clinical operation.

Charge indicator stalls below 100% on first charge

On the first charge, the M3's charge IC applies a conservative current limit to new cells — this is normal behaviour built into the charging firmware. The indicator can stall at 90–95% for an extended period before completing. Do not interrupt the charge. Leave the device on charge until the indicator confirms full charge, then run one complete discharge cycle before clinical use to calibrate the capacity gauge.

Compatible Models

M3 M3A Vital Signs Monitor SE-1 SE-1 ECG SE-1 EKG SE-3 SE-12 Express SE-12 Express 12-Channel ECG SE-100 SE-300 SE-300A SE-300B SE-300G SE-301 SE-601 SE-601A SE-601B SE-1200 SE-1200 12-Channel ECG SE-1200 Express 12 Channel ECG SE-1201 VE-100 VE-300

Replaces Part Numbers

21.21.064149 HYLB-102 TWSLB-005

Technical Specifications

Voltage14.4V
Amp Hours2600mAh
Capacity2600mAh
Rate37.44Wh
Net Weight192g /6.77 oz
Gross Weight217g /7.65 oz
Approximate Weight217g /7.65 oz
Dimension 73.70 x 69.50 x 18.70mm

Product Highlights

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

Frequently Asked Questions

My Edan M3 is alarming low battery immediately after I confirmed the new pack was fully charged — what's happening?

The M3's BMS compares incoming battery state against a learned charge profile from the previous OEM cell. A new cell with no cycle history doesn't pass that threshold check at first boot, triggering a low-battery alarm even on a full charge. This is a BMS calibration issue, not a fault with the cell itself. Run one complete charge-discharge-recharge cycle and the alarm clears as the BMS updates its profile.

The M3 won't power on at all after the replacement battery sat in a drawer for several months before installation — is the cell dead?

Li-ion cells self-discharge during storage, and if the pack dropped below the BMS's minimum recovery threshold (typically around 2.5V per cell), the protection circuit will block output entirely. Place the battery in the device and connect it to mains power — the charge IC on some units can recover a deeply discharged cell at a trickle rate before normal charging resumes. If the charge indicator shows no activity after 30 minutes on charge, check cell voltage directly; anything below 10V across the pack terminals indicates recovery is unlikely.

The M3 is shutting off unexpectedly mid-scan during the first week of use — is this a faulty battery?

New cells have higher internal resistance in the first 5–10 cycles, and the M3's imaging load draws significantly more current during active scanning than in standby. That combination causes brief voltage sag under load, which the BMS reads as a low-voltage cutoff event and shuts the device down. This behaviour typically resolves after 8–10 full charge-discharge cycles as the cell's internal resistance drops. Track shutdown frequency across the first two weeks — if it continues past cycle 10, check that the battery contacts are clean and making full contact in the bay.

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