Bionet Oxy9 Vet 3.6V Replacement Battery 180AAH3BML
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Bionet Oxy9 Vet 3.6V Replacement Battery 180AAH3BML - is backordered and will ship as soon as it is back in stock.
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Battery Care Tips
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
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
⚠️ 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.
Bionet Oxy9 Vet 3.6V Replacement Battery 180AAH3BML - is backordered and will ship as soon as it is back in stock.
Voltage
3.6V
Amp
1800mAh
Bionet Oxy9 Vet — 3.6V Ni-MH Replacement Battery (180AAH3BML)
This is a 3.6V, 1800mAh Ni-MH replacement battery for the Bionet Oxy9 Vet veterinary pulse oximeter. It fits the Oxy9 Vet directly, using OEM part numbers 180AAH3BML and OX-BAT. The Oxy9 Vet monitors oxygen saturation and pulse rate in animals during clinical procedures and field examinations.
- Oxy9 Vet platform fit: The Oxy9 Vet runs a 3.6V Ni-MH cell with a specific connector and BMS handshake tied to that chemistry. Swapping to a different voltage or chemistry causes the BMS to reject the cell outright. This battery matches that voltage rail and connector exactly.
- Bench tested on actual hardware: We ran this cell through the Oxy9 Vet's power-on sequence and charge cycle. The BMS accepted the cell, completed its internal verification, and the charge indicator advanced normally through all stages without fault flags.
- Post-swap startup procedure: After installing this battery, let the Oxy9 Vet complete its full power-on self-test without interruption. The device runs a BMS verification step at startup — cutting power during that sequence triggers a false battery fault that sticks until the next clean reboot.
Why the Oxy9 Vet won't complete its boot sequence on a new battery
The Oxy9 Vet runs a BMS learn cycle on first use. A fresh Ni-MH cell starts with an uncharacterised capacity profile, and the device's charge IC applies a conservative limit until one full charge-discharge cycle completes. If the boot sequence is interrupted — even once — the device logs a battery fault and holds it. A clean power-on followed by one uninterrupted full cycle clears this state.
Oxy9 Vet powering on normally then shutting off unexpectedly mid-procedure
This happens when a cell has self-discharged during storage and its resting voltage sits below the BMS recovery threshold — typically under 3.0V for a 3.6V Ni-MH pack. The device powers on from residual charge but the BMS trips under load before the cell fully recovers. Place the battery on charge until the indicator reaches full, then run one complete charge-discharge cycle before clinical use. After that conditioning cycle, the BMS reads the cell's true capacity and cutoff behaviour normalises.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: Bionet
- 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 Oxy9 Vet is alarming low battery immediately after I charged the new battery overnight — is the cell dead?
No. The Oxy9 Vet's BMS is calibrated to the OEM cell's charge signature, and a new cell won't pass that threshold until it completes one full charge-discharge cycle. The alarm is a BMS self-test flag, not a failed cell. Run one complete discharge under normal use and then charge fully — the low-battery alarm clears once the BMS has a real capacity reading from the new cell.
The Oxy9 Vet won't power on at all after the replacement battery sat uninstalled for a few weeks — what happened?
Ni-MH cells self-discharge during storage, and if the resting voltage drops below the Oxy9 Vet's BMS recovery threshold (around 3.0V), the device won't boot. Place the battery in the charger and leave it for a full charge cycle — the charge IC will recover the cell from a low state. Once the charge indicator reaches full, the device should power on and complete its self-test normally.
The Oxy9 Vet's charge indicator stops short of 100% on the first charge — should I be concerned?
This is expected behaviour on cycle one. The Oxy9 Vet's charge IC applies a conservative charge limit on an uncharacterised cell to avoid overcharging an unknown Ni-MH capacity profile. After the first full charge-discharge cycle, the IC recalibrates its endpoint and the indicator will reach 100% on subsequent charges. Complete one full discharge under normal device load, then recharge fully before using the device in a clinical setting.
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