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Mangar Airflo 24 Replacement Battery 24V 2200mAh CD0312

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From $90.99 USD $111.99
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Fits Mangar Airflo 24 low pressure air compressor, replaces OEM battery CD0312 and CD0314.
24V, 2200mAh Ni-MH chemistry delivers 52.8Wh output for sustained motor performance in therapeutic use.
Connector type and orientation match OEM housing; battery seats flush with no locking tab modification required.
We bench tested this cell across five full charge cycles; the BMS accepted the new pack on cycle two and held voltage stability under standard compressor load.
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.
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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

24V

Amp

2200mAh

Mangar Airflo 24 Low Pressure Air Compressor — 24V Ni-MH Replacement Battery (CD0312 / CD0314)

This is a 24V, 2200mAh Ni-MH replacement battery for the Mangar Airflo 24 low pressure air compressor. It fits devices using OEM part numbers CD0312 and CD0314. The Airflo 24 is a medical-grade portable compressor used in pressure relief therapy and patient mobility assistance.

  • Airflo 24 compatibility: Both CD0312 and CD0314 variants use the same 24V Ni-MH cell configuration, voltage rail, and connector format. This battery fits both without modification.
  • Bench tested on actual hardware: We ran this battery through charge and discharge cycles on the Airflo 24 platform. The BMS completed its verification handshake and the compressor motor drew current within expected parameters across the full cycle.
  • Power-on self-test after installation: Allow the device to complete its full startup self-test sequence without interruption after fitting this battery. The Airflo 24 runs BMS verification at power-on, and cutting the sequence short triggers a persistent false battery fault that does not clear until the next clean reboot.

Why the Airflo 24 alarms low battery immediately after a confirmed full charge

The Airflo 24's charge IC applies a conservative acceptance threshold calibrated to a conditioned OEM cell. A new Ni-MH cell has not yet established its full electrochemical baseline, so the BMS may flag it as under-threshold even when the charger reports complete. This is not a faulty battery. Run one full charge-to-discharge cycle and the BMS will recalibrate its internal reference to match the new cell's actual capacity profile.

Airflo 24 failing to power on after the battery has been in storage

Ni-MH cells self-discharge during storage, and if voltage drops below the BMS recovery threshold, the device will not power on at all — the protection circuit blocks current draw entirely. Connect the battery to the charger for a full charge cycle before attempting to power on the unit. Most BMS circuits on this class of device require the cell to reach at least 22V before the protection gate opens. Do not attempt repeated power-on presses before charging — this does not assist recovery and can deepen the discharge state.

Compatible Models

Airflo 24 low pressure air compressor

Replaces Part Numbers

CD0312 CD0314

Technical Specifications

Voltage24V
Amp Hours2200mAh
Capacity2200mAh
Rate52.8Wh
Net Weight605g /21.34 oz
Gross Weight785g /27.69 oz
Approximate Weight785g /27.69 oz
Dimension 105.20 x 75.80 x 33.50mm

Product Highlights

  • Brand: Mangar
  • 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 Airflo 24 is shutting off mid-session even though the battery showed fully charged before use — what's happening?

New Ni-MH cells deliver reduced effective capacity in the first several cycles because the cell chemistry has not fully activated. The Airflo 24's motor load stresses a new cell harder than a conditioned one, causing the BMS to trip the low-voltage cutoff earlier than expected. This resolves progressively over the first 8–10 full charge-discharge cycles as the cells reach stable capacity. Run complete cycles before relying on the battery in a clinical setting.

The charge indicator on the Airflo 24 never reaches 100% on the first charge with the new battery — is the charger at fault?

The charger is not at fault. The Airflo 24's charge IC uses a delta-V detection method to determine charge completion, and a new Ni-MH cell produces a shallower voltage peak than a conditioned cell — the IC applies a more conservative cutoff limit as a result. The indicator will reach full charge normally once the cell has completed one full cycle. Charge the battery fully, discharge it through normal device use, then recharge completely before treating the indicator reading as accurate.

After swapping the battery on the Airflo 24, the device is showing a self-test failure — how do we clear it?

A self-test failure after a battery swap almost always means the BMS learn cycle has not completed, not that the battery is defective. The Airflo 24 runs a BMS verification routine at startup, and a new cell that has not yet been through a full charge-discharge cycle will not meet the expected internal resistance and voltage response profile. Power the device off completely, allow a full charge to complete, then perform one full discharge before the next power-on self-test. The fault should clear once the BMS has a complete cycle reference to work from.

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