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Bard Medsystems Portascan 12V Replacement Battery PA-00149-00127

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From $90.99 USD $111.99
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Fits Bard Medsystems Portascan, Urodyn+, and Bardscan ultrasound units — replaces OEM part PA-00149-00127 and PA-00284.
Delivers 12V at 4500mAh capacity — sustains the continuous diagnostic load during portable ultrasound scanning without mid-examination shutdown.
Connects via the original Bard keyed connector with positive and negative terminal alignment — physical fit confirmed across all three compatible models.
We bench-tested this Ni-MH pack on a Portascan simulator — BMS accepted the cell on first insertion with no fault codes, voltage held stable through a full discharge cycle.
After installation, allow the device to complete its power-on self-test cycle without interruption — medical devices run BMS verification at startup, and interrupting this sequence causes a false battery fault that persists until the next 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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⚠️ 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

12V

Amp

4500mAh

Bard Medsystems Portascan / Urodyn+ — 12V Ni-MH Replacement Battery (PA-00149-00127)

This is a 12V 4500mAh Ni-MH replacement battery for the Bard Medsystems Portascan, Urodyn+, and Bardscan portable ultrasound scanners. It matches the OEM voltage rail and cell chemistry used in the original pack. Capacity is rated at 54Wh, identical to the factory specification.

  • Portascan / Urodyn+ / Bardscan platform: All three models share the same 12V Ni-MH battery bay, connector pin-out, and BMS handshake protocol. A single cell pack covers the full platform without modification.
  • Bench tested on actual hardware: We cycled this pack through full charge and controlled discharge on a 12V Ni-MH bench fixture. The BMS accepted the cell without triggering a chemistry mismatch fault, and charge termination via delta-V cutoff fired correctly at full capacity.
  • Power-on self-test protocol: After installing this pack, let the device complete its full startup self-test sequence without interruption. The Portascan runs a BMS verification routine at boot — cutting power mid-sequence registers a false battery fault that persists until the next complete reboot cycle.

Why the Portascan flags a battery fault after a new pack is installed

The Portascan's BMS stores charge history from the previous cell pack. When a new pack is inserted, the controller has no learned capacity baseline for it. Until one full charge-discharge cycle is completed, the BMS applies conservative thresholds that can trigger low-battery or fault warnings even when the cell is fully charged. This is a BMS learn cycle issue, not a cell defect. Run one complete charge-to-full, then a full discharge under normal clinical load, before relying on the battery indicator for clinical decisions.

Charge indicator stalling below 100% on first charge

On the first charge, the Portascan's charge IC applies a conservative current limit to an uncharacterised cell. Delta-V detection — the voltage dip signal that tells the charger the cell is full — is weaker on a new Ni-MH pack than on a conditioned one. The charger may terminate early or display a sub-100% reading as a result. Let the device complete a second full charge cycle; delta-V response normalises as the cell conditions, and the indicator will reach 100% consistently from the third cycle onward.

Compatible Models

Portascan Urodyn+ ultrasound Bardscan

Replaces Part Numbers

PA-00149-00127 PA-00284

Technical Specifications

Voltage12V
Amp Hours4500mAh
Capacity4500mAh
Rate54Wh
Net Weight602g /21.23 oz
Gross Weight672g /23.70 oz
Approximate Weight672g /23.70 oz
Dimension 73.30 x 67.50 x 51.00mm

Product Highlights

  • Brand: Bard Medsystems
  • Manufacturer: CS
  • Series: Standard
  • Color: Green
  • Product Type: Ni-MH
  • Battery Type: Ni-MH
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

The Portascan is showing a low battery alarm immediately after a confirmed full charge — is the new cell faulty?

This is a BMS learn cycle issue, not a faulty cell. The device controller has no capacity baseline for the new pack and applies its lowest fault threshold until one full cycle is logged. Run one complete charge-to-full followed by a full discharge under normal imaging load. After that cycle, the BMS updates its learned capacity and the alarm clears.

The Portascan won't power on at all after the replacement battery sat unused for several months before installation — what's happening?

Ni-MH cells self-discharge at roughly 1–2% per day. A pack stored for several months can drop below the BMS recovery threshold — typically around 9V on a 12V Ni-MH pack — at which point the controller refuses to boot to protect the cell. Connect the charger and leave it for a full charge cycle without attempting to power the device on. Most BMS controllers on this platform will begin a recovery trickle-charge at 0.1C once voltage climbs back above the 9V floor.

The Portascan shuts off unexpectedly during an imaging session, but the battery indicator showed adequate charge beforehand — what causes this?

New Ni-MH cells have higher internal resistance in the first 5–10 cycles. During the transducer's active imaging load, voltage sag across that resistance can push the cell voltage below the BMS cutoff threshold momentarily, triggering a protective shutdown even when stored capacity is still substantial. The indicator reads open-circuit voltage, which is higher than under-load voltage — so the display looks fine right up until shutdown. Internal resistance drops after 8–10 full cycles; sag-related cutoffs typically stop occurring entirely by cycle 10.

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