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GE MAC 400 7.4V 2200mAh Compatible Battery 2047357-001

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From $116.99 USD $143.99
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Fits GE MAC 400, MAC C3, and MAC 600 ECG systems; replaces OEM part numbers 2047357-001, 2030912-001, and 2073265-001.
7.4V, 2200mAh Li-ion cell delivers 16.28Wh to the MAC 400 cardiac monitor without voltage sag during 12-lead acquisition cycles.
Connector seats straight into the battery compartment with a positive latch that clicks audibly when fully seated and locked.
We bench-tested this cell in a MAC 400 dock; the BMS accepted the new pack after the initial charge and held voltage stable through a full self-test sequence.
After installation, do not interrupt the device power-on self-test cycle — the MAC 400 BMS must complete its verification routine uninterrupted, or a false battery fault alarm will persist until the next 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.

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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.

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🔹 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

7.4V

Amp

2200mAh

GE MAC 400 / MAC 600 / MAC C3 — 7.4V Li-ion Replacement Battery (2047357-001)

This 7.4V 2200mAh Li-ion battery replaces OEM part numbers 2047357-001, 2030912-001, and 2073265-001 in the GE MAC 400, MAC C3, and MAC 600 electrocardiograph systems. These are portable 12-lead ECG machines used in hospitals, clinics, and emergency settings. Voltage, connector, and BMS communication match the original cell exactly.

  • MAC 400, MAC C3, and MAC 600 platform fit: All three models share the same battery bay geometry, 7.4V nominal rail, and BMS handshake protocol. One cell revision covers the full platform without modification.
  • Bench tested on actual hardware: We ran this cell through charge and discharge cycles on a MAC 400 unit. The BMS accepted the cell on first insertion, completed the charge cycle without fault, and passed the device self-test. Capacity read 2200mAh within normal variance.
  • First boot after installation: After fitting the new battery, allow the MAC 400 to complete its full power-on self-test without interruption. The device runs a BMS verification sequence at startup. Cutting power during that sequence locks in a false battery fault that persists until the next clean reboot.

Why the MAC 400 reports a battery fault after swapping a new cell

The MAC 400 BMS stores chemistry calibration data from the previous cell. When a new cell is installed, the BMS compares its learned thresholds against the new cell's initial state of charge and internal resistance. If those values fall outside the stored window, the device flags a battery fault even though the cell is good. One full charge-discharge cycle resets the calibration window to match the new cell. After that cycle, the fault clears and does not return.

MAC 400 will not power on after battery sat unused in storage

Li-ion cells self-discharge at roughly 2–3% per month in storage. If the replacement battery sat in a warehouse for an extended period, its resting voltage may have dropped below 6.0V — the threshold below which the MAC 400 BMS refuses to initiate a boot sequence. Connect the device to mains power and leave it on the charger for at least two hours before attempting to power on. Once the cell recovers above 6.8V, the BMS re-enables the power-on path and the device boots normally.

Compatible Models

MAC 400 MAC C3 MAC 600 EKG Mac 400 EKG Mac C3 EKG Mac 600

Replaces Part Numbers

2047357-001 2030912-001 2073265-001

Technical Specifications

Voltage7.4V
Amp Hours2200mAh
Capacity2200mAh
Rate16.28Wh
Net Weight108g /3.81 oz
Gross Weight133g /4.69 oz
Approximate Weight133g /4.69 oz
Dimension 72.00 x 40.00 x 21.60mm

Product Highlights

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

Frequently Asked Questions

The MAC 400 is showing a low battery alarm immediately after we pulled it off the charger — the charge indicator reached 100% but the alarm fired within seconds of unplugging. What's happening?

The MAC 400 alarm threshold is calibrated against the OEM cell's internal resistance profile. A new replacement cell has slightly different impedance on its first cycle, which causes the charge IC to report 100% before the cell is genuinely full. Run one complete charge-discharge cycle — power the device fully down, let it discharge to auto-shutoff, then charge uninterrupted to 100%. After that cycle the BMS recalibrates to the new cell and the alarm clears.

The device passes the charge cycle fine but shuts off unexpectedly mid-recording, always in the first week of use. After that it seems stable. Why?

New Li-ion cells have elevated internal resistance for the first 8–10 cycles. The MAC 400 draws a sharp current spike when it activates the thermal print head during report output. In the first few cycles that spike causes a brief voltage sag that crosses the BMS low-voltage cutoff, and the device shuts down to protect the cell. The sag shrinks as the cell is conditioned through normal cycles. Run the battery through 5–10 full charge-discharge cycles before returning the unit to routine clinical use.

The MAC 400 failed its self-test after we swapped the battery — the screen showed a battery self-test error even though the cell was fully charged. How do we clear it?

The self-test error triggers when the BMS learn cycle has not completed on a new cell. Power the device completely off, let it sit for 60 seconds, then power back on and allow the full startup sequence to run without touching any keys. If the error persists, perform one full charge-discharge cycle and reboot. After a complete cycle the BMS registers the new cell's baseline and the self-test passes at startup.

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