Uniphy 409 Medical Device Replacement Battery 12V 3000mAh
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Uniphy 409 Medical Device Replacement Battery 12V 3000mAh - is backordered and will ship as soon as it is back in stock.
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Battery Care Tips
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
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
⚠️ 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.
Uniphy 409 Medical Device Replacement Battery 12V 3000mAh - is backordered and will ship as soon as it is back in stock.
Voltage
12V
Amp
3000mAh
Uniphy 409 — 12V Ni-MH Replacement Battery (110243-X)
This is a 12V, 3000mAh Ni-MH replacement battery for the Uniphy 409 medical device. It replaces OEM part number 110243-X. The battery restores power to Uniphy 409 units where the original cell has aged past usable capacity.
- Uniphy 409 platform fit: The 110243-X form factor is specific to the Uniphy 409 chassis — the connector orientation, cell geometry (218.80 × 46.50 × 24.30mm), and 12V nominal voltage match the device's internal power rail and BMS handshake requirements.
- Bench tested on actual hardware: We cycled this cell through charge, standby, and load discharge on the bench. The BMS accepted the cell without fault flags, and voltage held stable across the load profile throughout the first three cycles.
- Post-installation self-test protocol: After fitting this battery, allow the Uniphy 409 to complete its full power-on self-test without interruption. The device BMS runs a verification sequence at startup — cutting power mid-cycle can trigger a persistent battery fault that won't clear until the next complete reboot.
Why the Uniphy 409 flags a battery fault on the first boot after a cell swap
Medical device BMS firmware is calibrated to the charge profile of a conditioned OEM cell. A new Ni-MH cell presents a slightly different internal resistance and initial voltage signature, which some Uniphy 409 units read as out-of-spec. The BMS learn cycle needs one full charge-discharge pass to recalibrate its thresholds to the new cell. Running that first cycle before clinical use resolves the fault in most cases.
Charge indicator not reaching 100% on the first charge
On the first charge, the Uniphy 409's charge IC applies a conservative current limit when it detects a new or previously discharged Ni-MH cell. This is normal — the IC is protecting against overcharge on an unconditioned cell. The display may stall between 85–95% before the cycle completes. Run a full discharge followed by a complete uninterrupted charge, and the indicator should reach 100% from the second cycle onward.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: Uniphy
- Manufacturer: CS
- Series: Standard
- Color: Black
- Product Type: Ni-MH
- Battery Type: Ni-MH
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Frequently Asked Questions
The Uniphy 409 shows a low battery alarm immediately after the replacement came off a full charge — what's happening?
The BMS self-test threshold in the Uniphy 409 is calibrated against a conditioned OEM cell's voltage curve. A new Ni-MH cell at full charge can still measure slightly outside the expected window, triggering the alarm before the unit accepts it. This isn't a fault with the cell — it resolves after one complete charge-discharge cycle. Run the cycle, let the device complete its boot self-test uninterrupted, and the alarm should clear.
The Uniphy 409 won't power on after the replacement battery sat unused for several weeks before installation — how do I recover it?
Ni-MH cells self-discharge in storage, and if the cell dropped below the Uniphy 409's BMS recovery threshold (typically around 10.5V on a 12V pack), the BMS will refuse to initiate a boot. Connect the device to mains power and leave it on charge for a full uninterrupted cycle — most Ni-MH chargers will apply a trickle recovery current that brings the cell back above the BMS floor. Once voltage recovers past the threshold, the device should power on and complete its self-test normally.
The Uniphy 409 is shutting off unexpectedly during use — could the new battery be causing this?
New Ni-MH cells have higher internal resistance in the first 5–10 cycles, which causes steeper voltage sag under the device's load profile. The Uniphy 409's BMS interprets that sag as low cell voltage and triggers a protective shutdown before the cell is actually depleted. This behaviour typically reduces significantly after 8–10 full charge-discharge cycles as the cell chemistry conditions and internal resistance drops. Do not use the unit in clinical situations until it has completed at least one full conditioning cycle.
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