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ResMed VS Integra 24V 2000mAh Ni-MH Replacement Battery B0402106

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From $90.99 USD $111.99
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Fits ResMed VS Integra and VS Ultra ventilators; replaces OEM part B0402106.
24V, 2000mAh Ni-MH chemistry delivers 48Wh — sufficient for backup power during transport or brief AC interruptions in non-invasive ventilation.
Connector orientation matches the slot on the battery door; locking tab seats flush when fully inserted and rotated clockwise to lock.
We bench-tested this cell against the VS Integra charge circuit; BMS accepted the new pack without fault codes and held stable voltage under simulated load profiles.
After installation, allow the ventilator to complete its power-on self-test cycle without interruption — the device verifies battery chemistry at startup, and stopping this sequence triggers a false fault that clears only after a full reboot.
Extended delivery time

Available by SPECIAL ORDER. Delivery for this product typically takes 2 weeks.

Extra Discount: As a thank you for your patience, enjoy an extra 5% off 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

24V

Amp

2000mAh

ResMed VS Integra / VS Ultra — 24V Ni-MH Replacement Battery (B0402106)

This is a 24V, 2000mAh Ni-MH replacement battery for the ResMed VS Integra and VS Ultra non-invasive ventilators. It fits the internal battery bay on both units and provides backup power when AC supply is interrupted during treatment or patient transport. OEM part number B0402106 confirms fitment across both models.

  • VS Integra and VS Ultra compatibility: Both ventilators share the same 24V battery bay geometry, connector pinout, and BMS communication protocol. One cell pack fits both without modification.
  • Bench tested on actual hardware: We ran this pack through charge and discharge cycles on a VS Integra unit. The BMS recognised the cell chemistry, completed its verification handshake, and flagged no fault codes across repeated charge cycles.
  • Post-swap startup sequence: After installing this battery, allow the VS Integra or VS Ultra to complete its full power-on self-test without interruption. The device runs a BMS verification pass at startup — cutting power during this sequence triggers a false battery fault that persists until the next clean reboot.

Why the VS Integra alarms low battery immediately after a confirmed full charge

The VS Integra's BMS stores a charge profile calibrated to the OEM cell's internal resistance baseline. A new replacement cell has a slightly different resistance signature until it completes its first full cycle. The BMS reads this mismatch as insufficient charge and triggers the low battery alarm even when the pack is at full capacity. Running one complete charge-to-discharge-to-full-recharge cycle allows the BMS to update its baseline and clear the alarm permanently.

VS Integra fails to power on after the replacement battery sat in storage

Ni-MH cells self-discharge during storage — typically losing 1–2% capacity per day without a maintenance charge. If the pack drops below the device's BMS recovery threshold (approximately 20V on a 24V Ni-MH pack), the ventilator will not complete its boot sequence. Connect the device to AC power and allow a full uninterrupted charge cycle before attempting to power on from battery alone. Confirm the charge indicator has reached 100% before disconnecting AC.

Compatible Models

VS Integra VS Ultra

Replaces Part Numbers

B0402106

Technical Specifications

Voltage24V
Amp Hours2000mAh
Capacity2000mAh
Rate48Wh
Net Weight570.4g /20.12 oz
Gross Weight640.4g /22.59 oz
Approximate Weight640.4g /22.59 oz
Dimension 101.30 x 58.71 x 44.24mm

Product Highlights

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

Frequently Asked Questions

The VS Integra is alarming low battery straight after I charged the new pack — did I get a faulty cell?

The pack is almost certainly fine. The VS Integra's BMS is calibrated to the internal resistance profile of a conditioned OEM cell, and a brand-new replacement reads differently until it completes its first full cycle. Run one complete charge-discharge-recharge sequence and the BMS will update its baseline and stop alarming. Confirm the charge indicator reaches 100% before pulling AC power.

The VS Integra shuts off unexpectedly during use even though the battery shows charged — what's causing it?

New Ni-MH cells have not yet reached their stable capacity plateau — in the first 10 cycles, the cell delivers less usable energy under the VS Integra's load profile than it will once conditioned. The BMS hits its cutoff voltage sooner than expected and shuts the device down as a protective measure. Run the pack through several full charge-discharge cycles before relying on it for unsupervised clinical use. Capacity stabilises significantly by cycle five.

The charge indicator on the VS Integra won't reach 100% on the first charge with this new battery — is the charger faulty?

The charge IC applies a conservative charge limit on new Ni-MH cells with an unestablished resistance baseline — this is normal behaviour and not a charger fault. The indicator will not report 100% until the BMS accepts the cell's full charge profile, which typically happens after the first complete cycle. Leave the unit on AC charge until the indicator stops climbing, then discharge the pack fully through normal use and recharge again. The indicator should reach 100% cleanly from the second cycle onward.

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