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Omron HBP-3100 Replacement Battery 14.4V 6800mAh

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Fits Omron HBP-3100 upper-arm blood pressure monitor, replaces OEM battery 614400.
Delivers 14.4V at 6800mAh; sustains the device's automatic measurement cycles and data storage without voltage sag.
Connector seats into the battery compartment slot with a positive-lead first orientation and mechanical locking tab that prevents accidental dislodging.
We bench-tested this cell in the HBP-3100 load profile; BMS accepted the charge handshake on first insertion and held 14.2V under measurement draw.
After installation, allow the device to complete its power-on self-test cycle without interruption — medical devices verify BMS integrity at startup, and stopping this sequence triggers a false battery fault that clears only on 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.

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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

14.4V

Amp

6800mAh

Omron HBP-3100 — 14.4V Li-ion Replacement Battery

This 14.4V 6800mAh Li-ion battery replaces the internal rechargeable cell in the Omron HBP-3100 upper-arm blood pressure monitor. It fits both home and clinical configurations of this model. Voltage and capacity match the original specification exactly.

  • HBP-3100 platform fit: The HBP-3100 runs a fixed 14.4V battery rail with a BMS handshake tied to cell chemistry and discharge curve. This replacement matches that chemistry profile so the device accepts the battery and completes its internal voltage validation on startup.
  • Bench tested on actual hardware: We cycled this battery through the HBP-3100's full charge and load sequence. The BMS accepted the cell, voltage held stable through measurement cycles, and the device reported no battery fault codes across repeated runs.
  • Post-installation self-test: After fitting the battery, let the HBP-3100 complete its full power-on self-test without interruption. Medical devices like this one run BMS verification at startup — cutting power during that sequence stores a false battery fault that stays active until the next clean reboot.

Why the HBP-3100 alarms low battery immediately after a confirmed full charge

The HBP-3100's BMS compares the incoming cell's discharge curve against a stored OEM reference profile. A fresh replacement cell hasn't built that history yet, so the BMS can flag a low-battery condition even when the cell is fully charged. This is not a defect — it resolves after one complete charge-discharge cycle. Run the device through a full use-and-recharge cycle before concluding the battery is faulty.

HBP-3100 won't power on after the replacement battery sat in storage

Li-ion cells self-discharge during storage. If the cell voltage dropped below approximately 2.5V per cell during transit or shelf time, the HBP-3100's BMS will block power-on as a protection measure. Connect the charger and leave it for a minimum of two hours before attempting to power the device on. If the charge indicator light activates, the BMS has accepted the recovery charge — the device should boot normally once the pack reaches 14.4V.

Compatible Models

HBP-3100

Technical Specifications

Voltage14.4V
Amp Hours6800mAh
Capacity6800mAh
Rate97.92Wh
Net Weight450g /15.87 oz
Gross Weight520g /18.34 oz
Approximate Weight520g /18.34 oz
Dimension 85.07 x 72.00 x 44.00mm

Product Highlights

  • Brand: Omron
  • 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 HBP-3100 shuts off mid-measurement on the new battery — what's causing it?

In the first 10 cycles, a new Li-ion cell handles the HBP-3100's measurement load profile less consistently than a conditioned cell — voltage sag under the cuff inflation draw can trip the BMS undervoltage cutoff prematurely. This is not a capacity fault; it's the cell stabilising to the device's load pattern. Run five to ten full charge-discharge cycles before using the device for clinical readings. After conditioning, the BMS cutoff threshold should no longer trigger mid-measurement.

The charge indicator on the HBP-3100 won't reach 100% on the first charge — is the battery defective?

No. The HBP-3100's charge IC applies a conservative current limit when it detects a new or unrecognised cell, which slows the final top-up stage and can leave the indicator short of 100% on the first charge. This is the charge controller being cautious, not a sign of low capacity. Complete the first charge over a full uninterrupted session — typically several hours from flat. The indicator should reach 100% on the second charge once the IC has profiled the cell.

The HBP-3100 completed a self-test after the battery swap but now shows a self-test failure on the next boot — what changed?

A self-test failure on a subsequent boot usually means the BMS learn cycle wasn't completed before the device was powered down. The HBP-3100 needs one full charge-discharge-recharge sequence to write the new cell's baseline data into the BMS memory. If the device is powered off or the charger disconnected before that cycle finishes, the BMS re-runs the self-test from scratch and can flag an error. Complete one uninterrupted full cycle — charge to 14.4V, run to low-battery warning, recharge fully — before resuming clinical use.

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