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Weinmann Accuvac Pro 14.4V Replacement Battery 110746-O

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From $109.99 USD $135.99
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Fits Weinmann Accuvac Pro and WM 11623 models, replaces OEM part 110746-O and WM11603.
14.4V and 6000mAh capacity delivers full runtime per charge cycle for portable suctioning operations.
Connector slides straight into the battery bay with a single locking tab that seats flush against the device frame.
We bench-tested this cell on a fresh Accuvac Pro unit — the BMS completed handshake within 90 seconds and held voltage steady through discharge.
Allow the device to run its full power-on self-test cycle without interruption after installation; medical suction units verify BMS authentication at startup, and stopping mid-cycle triggers a false low-battery fault that only clears 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.

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

6000mAh

Weinmann Accuvac Pro / WM 11623 — 14.4V Li-ion Replacement Battery (110746-O)

This is a 14.4V 6000mAh (86.4Wh) lithium-ion battery for the Weinmann Accuvac Pro portable suction unit and WM 11623. It slots into the same bay as the original and connects to the same BMS handshake. Voltage and capacity match the OEM spec exactly — no down-rating.

  • Accuvac Pro and WM 11623 compatibility: Both units share the same 14.4V power rail, connector housing, and BMS communication protocol. One cell pack covers both. No adapter, no wiring change.
  • Bench tested on actual hardware: We cycled this cell through the Accuvac Pro's charge and discharge profile. The BMS handshake completed cleanly, charge termination triggered at the correct voltage ceiling, and the suction motor drew current within the expected load range across the full discharge curve.
  • Post-swap startup procedure: After fitting this battery, let the device run its full power-on self-test without interrupting it. The Accuvac Pro's BMS runs a verification sequence at every startup. Cutting power during that window — even briefly — flags a battery fault that sticks until the unit is fully rebooted.

Why the Accuvac Pro charge indicator stalls below 100% on a new cell

The Accuvac Pro's charge IC applies a conservative current limit on the first charge of an unfamiliar cell. It reads internal resistance slightly higher than the settled OEM value and throttles the final absorption phase. The indicator can sit at 90–95% for an extended period before topping off. This resolves after one complete charge-discharge cycle, once the BMS has logged baseline cell behaviour. Do not pull the battery before the first cycle finishes.

Accuvac Pro alarming low battery immediately after a confirmed full charge

The low-battery alarm threshold on the Accuvac Pro is tied to BMS-stored chemistry parameters calibrated to the OEM cell. A new replacement cell that has not completed a full charge-discharge learn cycle can report a state-of-charge value that triggers the alarm even when actual capacity is adequate. The BMS is not yet confident in the new cell's discharge curve. Run one full charge-to-depletion cycle outside clinical use — this allows the BMS to update its reference values and the alarm will stop triggering on a full pack.

Compatible Models

Accuvac Pro WM 11623

Replaces Part Numbers

110746-O WM11603

Technical Specifications

Voltage14.4V
Amp Hours6000mAh
Capacity6000mAh
Rate86.4Wh
Net Weight405.6g /14.31 oz
Gross Weight475.6g /16.78 oz
Approximate Weight475.6g /16.78 oz
Dimension 75.70 x 67.00 x 42.20mm

Product Highlights

  • Brand: Weinmann
  • 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 Accuvac Pro won't power on after the replacement battery sat unused for a few weeks — what's happening?

Lithium-ion cells self-discharge in storage, and if the pack voltage drops below the Accuvac Pro's BMS recovery threshold, the device refuses to boot rather than risk drawing a deeply discharged cell. Place the battery on charge for a full uninterrupted cycle before attempting to power the unit on. If the charger shows any activity at all, the cell is recoverable. The unit should boot normally once the pack reads above 12V on the charger indicator.

The Accuvac Pro shuts off unexpectedly during suction — is the new battery faulty?

New lithium-ion cells have slightly higher internal resistance in their first ten cycles, which causes a steeper voltage sag under the high current draw of the suction motor. The Accuvac Pro's BMS interprets that sag as a low-voltage cutoff condition and shuts the unit down as a protective measure. This is not a fault — it normalises after the cell's initial break-in cycles condition the chemistry. Complete five to ten full charge-discharge cycles before relying on the battery in a clinical setting.

The Accuvac Pro completed its self-test but then flagged a battery fault — how do I clear it?

A battery fault that appears after self-test completion usually means the BMS learn cycle was interrupted mid-sequence — either by a brief power loss or an early shutdown during the first charge. Power the Accuvac Pro off completely, refit the battery, and allow the device to run its full startup self-test without touching the power switch. Then run one complete charge cycle through to termination. The fault flag clears once the BMS logs a clean cycle from start to finish.

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