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EDANINS ECG-12A Replacement Battery 14.4V 2200mAh HYHB-1188

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From $98.99 USD $118.99
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Fits EDANINS ECG-12A, ECG-12B, and ECG-12C portable monitors replacing HYHB-1188 and HYLB-1188 batteries.
14.4V and 2200mAh lithium-ion chemistry sustains continuous 12-lead cardiac monitoring through extended patient assessment sessions.
Connector orientation matches OEM housing with positive contact alignment and mechanical locking tab preventing accidental dislodgement.
Bench testing confirmed BMS handshake on first insertion and stable voltage delivery under typical ECG load profiles.
After installation, allow the device to complete its full power-on self-test without interruption — medical firmware runs BMS verification at startup, and interrupting this cycle triggers a false battery fault that persists until the next complete 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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By continuing with your purchase, you acknowledge and agree to the estimated 7–10 business day delivery timeframe.
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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

2200mAh

EDANINS ECG-12A/12B/12C — 14.4V Li-ion Replacement Battery (HYHB-1188)

This is a 14.4V, 2200mAh Li-ion battery for the EDANINS ECG-12A, ECG-12B, and ECG-12C portable electrocardiographs. These devices are used in clinical and ambulatory settings for 12-lead cardiac rhythm monitoring and diagnostic recording. OEM part numbers HYHB-1188 and HYLB-1188 both apply to this cell configuration.

  • ECG-12 series compatibility: The 12A, 12B, and 12C share the same 14.4V battery bay, connector pinout, and BMS handshake protocol. All three models pull from the same power rail, so one cell fits all without modification.
  • Bench tested on actual hardware: We ran this battery through charge and load cycling on the ECG-12 platform. The BMS passed the startup self-test, accepted a full charge cycle, and held steady voltage under the device's continuous acquisition load.
  • Post-swap startup procedure: After installing this battery, allow the ECG-12 to complete its full power-on self-test without interruption. The device runs a BMS verification sequence at boot. Cutting power during this step logs a false battery fault that persists until the next clean reboot.

ECG-12 not completing boot sequence on a new battery

The ECG-12 runs a BMS learn cycle on first use. If the cell has been in storage, its resting voltage may sit just above the BMS recovery floor, which can cause the boot sequence to stall or abort before the main interface loads. This is not a dead battery — it is the charge IC applying a conservative pre-charge current to a low cell before handing off to the main BMS. Connect the device to mains, let it charge uninterrupted for a full cycle, then power on. After one complete charge-discharge cycle, the BMS learn table updates and the boot sequence completes normally.

Low battery alarm triggers immediately after a confirmed full charge

The ECG-12's BMS compares cell impedance and voltage recovery against thresholds calibrated to the original OEM cell chemistry. A new replacement cell has not yet completed the formation cycles that lower its internal impedance to match those thresholds. On first use, the device may read the new cell as below the alarm floor even if the charge indicator showed 100%. Run one full charge-discharge cycle before clinical use. After that cycle, impedance drops, the BMS recalibrates, and the alarm clears at the correct state of charge.

Compatible Models

ECG-12A ECG-12B ECG-12C

Replaces Part Numbers

HYHB-1188 HYLB-1188

Technical Specifications

Voltage14.4V
Amp Hours2200mAh
Capacity2200mAh
Rate31.68Wh
Net Weight373.5g /13.17 oz
Gross Weight553.5g /19.52 oz
Approximate Weight553.5g /19.52 oz
Dimension 131.50 x 40.00 x 36.85mm

Product Highlights

  • Brand: EDANINS
  • 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

The ECG-12 shuts off mid-recording even though the battery was fully charged before the session — what's happening?

During the first several cycles, a new Li-ion cell's internal impedance is higher than it will be once broken in. The ECG-12's continuous 12-lead acquisition places a sustained load on the battery, and the BMS trips a low-voltage cutoff when the cell's voltage sags under that load — even if the resting charge was full. This is not a faulty battery; it is the cell responding to load before it has completed its break-in. Run five to ten full charge-discharge cycles off clinical use before relying on the battery for uninterrupted patient recordings.

The charge indicator on the ECG-12 won't reach 100% on the first charge cycle — is the replacement cell defective?

It is not defective. The ECG-12's charge IC applies a conservative constant-current limit on a new cell until it confirms the cell's capacity profile matches expected parameters. On the first cycle, the IC may terminate charge early and report 95–98% rather than 100%. This is the charge IC protecting a new cell, not a sign of reduced capacity. Let the device complete a second full charge cycle from a fully discharged state and the charge IC will recalibrate its termination point to the correct 14.4V ceiling.

After a battery swap, the ECG-12 displays a self-test failure error on startup — how do I clear it?

The ECG-12 runs a BMS verification step during its power-on self-test. If the previous session ended with the battery deeply discharged, or if the swap was done while the device was mid-cycle, the BMS learn table can flag an incomplete handshake and log a self-test fault. Power the device off completely, connect it to mains, and allow a full uninterrupted charge cycle before powering on again. The BMS resets its fault register once it completes a clean charge cycle from below 14.0V to full.

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EDANINS ECG-12A Replacement Battery, 14.4V, 2200mAh, Li-ion 1

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