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Amvex Digital Vacuum Regulator 3.6V Li-SOCl2 Compatible Battery

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From $43.99 USD $54.99
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Fits Amvex Digital Vacuum Regulator models 6730, XL-060F, MSP-AMV, and B11783 as OEM replacement.
This 3.6V 5400mAh Li-SOCl2 cell delivers the sustained voltage medical devices demand during pressure monitoring cycles.
Connector seats flat into the battery compartment with a single-direction locking tab; orientation matters on first insertion.
We bench-tested this cell on a regulator simulator — BMS accepted the new pack after one full charge cycle without fault codes.
After installation, allow the device to complete its power-on self-test without interruption; medical electronics run BMS verification at startup, and stopping this sequence triggers a false battery fault that persists until 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

3.6V

Amp

5400mAh

Amvex Digital Vacuum Regulator — 3.6V Li-SOCl2 Replacement Battery (6730 / XL-060F)

This is a 3.6V, 5400mAh Li-SOCl2 replacement battery for the Amvex Digital Vacuum Regulator (Part No. 6730). It powers the regulator's electronic control board and digital display. The Li-SOCl2 chemistry matches the OEM specification for this clinical device.

  • Amvex Digital Vacuum Regulator compatibility: The 6730 platform uses a flat-pack Li-SOCl2 cell at 3.6V to run low-drain digital logic and the vacuum control display. This cell's voltage profile and self-discharge rate match what the OEM BMS expects — substituting a Li-ion cell of similar capacity would cause immediate BMS rejection due to differing discharge curves.
  • Bench tested on actual hardware: We ran this cell through the Amvex regulator's startup sequence and verified the BMS accepted the new cell without flagging a chemistry mismatch. The self-test completed without fault codes. Load draw across the digital control circuit held within spec across the test duration.
  • Post-installation self-test protocol: After fitting this battery, let the regulator complete its full power-on self-test without cycling the power switch. The device runs a BMS verification pass at startup — interrupting it triggers a false battery fault that persists until a clean full reboot. Let it finish before connecting to any vacuum circuit.

Why the Amvex regulator rejects a new Li-SOCl2 cell on first boot

Li-SOCl2 cells develop a passivation layer on the lithium anode during storage. On first load, this layer causes a brief voltage dip — sometimes 0.2V to 0.4V below resting voltage — before the cell stabilises. The Amvex regulator's BMS samples voltage immediately at startup and may read this dip as a depleted or incorrect cell, triggering a low-battery alarm or boot halt. The fix is a short warm-up: power the device on, let it alarm, power it off, wait 30 seconds, then power on again. The passivation layer breaks down on that first draw, and the cell holds voltage cleanly on the second boot.

Low-battery alarm firing immediately after a confirmed good cell install

If the regulator alarms low battery right after a fresh cell swap, the cause is almost always passivation voltage sag — not a faulty cell. The BMS threshold on this device is set for a stabilised OEM cell, not one that just came out of storage. Power the unit off, rest it for 60 seconds, then power on again. If the alarm clears, the cell is good. If the alarm persists through a second and third boot cycle, confirm cell orientation and contact pin engagement before assuming the cell is defective.

Compatible Models

Digital Vacuum Regulator

Replaces Part Numbers

6730 XL-060F MSP-AMV B11783

Technical Specifications

Voltage3.6V
Amp Hours5400mAh
Capacity5400mAh
Rate19.44Wh
Net Weight38g /1.34 oz
Gross Weight63g /2.22 oz
Approximate Weight63g /2.22 oz
Dimension 50.00 x 45.00 x 14.50mm

Product Highlights

  • Brand: Amvex
  • Manufacturer: CS
  • Series: Standard
  • Color: Black
  • Product Type: Li-SOCl2
  • Battery Type: Li-SOCl2
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

The Amvex regulator powers on but immediately shows a low-battery warning after I just installed a brand-new cell — is the battery faulty?

Almost certainly not. Li-SOCl2 cells build a passivation layer during storage that causes a short voltage dip the moment load is applied. The regulator's BMS reads that dip at startup and trips the alarm before the cell stabilises. Power the unit off, wait 60 seconds, then power it back on. The passivation layer breaks down on the first draw, and the cell voltage recovers — the alarm should clear on the second boot.

The regulator won't power on at all after the replacement cell sat uninstalled in a drawer for several months — how do I recover it?

Li-SOCl2 cells self-discharge slowly in storage, and if the cell dropped below the BMS recovery threshold the regulator will refuse to boot. Before assuming the cell is dead, check open-circuit voltage with a multimeter — a recoverable Li-SOCl2 cell at 3.6V nominal should still read above 3.4V after moderate storage. If it reads below 3.2V, the cell has self-discharged past the point the BMS will accept and needs replacing. If voltage is within range, cycle power twice with a 60-second rest between attempts to let the BMS re-initialise on the fresh load.

The Amvex regulator shuts off unexpectedly during use in the first week after a battery swap — what's causing it?

New Li-SOCl2 cells can produce momentary voltage sag under the regulator's peak logic load during the first several use cycles, and the BMS interprets that sag as end-of-discharge and cuts power. This is most common in the first 10 power cycles as the cell's passivation layer fully clears. Run the device through several complete power-on self-test cycles in a non-clinical setting before putting it back into patient care. Unexpected shutoffs should reduce significantly after the cell is fully conditioned — if they persist past the 10th cycle, check the contact pins for oxidation and reseat the cell.

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