
Genuine Inogen / OxyGo One G5 Replacement Battery – BA-500 (8-Cell, Factory-Sealed)
The BA-500 8-cell lithium-ion replacement battery is designed to meet OEM performance specifications for Inogen One G5 and OxyGo One G5 devices.
It delivers up to approximately 6.5 hours of runtime at standard operating settings and charges fully in about 3 hours.
Brand new, factory-sealed, and backed by a 1-year manufacturer warranty.


WIDE COMPATIBILITY:
The BA-500 replacement battery is compatible with IO-500, IO-501, 1400-3000U, BA-503, 1400-3030.
Replace Part Number:
BA-500, BA-503.
SPECIFICATIONS:
The replacement battery type: Li-ion;
Capacity: 3.2Ah/46.1Wh+46.1Wh;
Conditon:New;
Voltage:14.4V.
Key Technical Specifications:
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Compatibility: Inogen One G5 & OxyGo One G5
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Battery Model: BA-500 (Single Battery)
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Condition: Brand New, Factory Sealed
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Cell Configuration: High-Density 8-Cell Lithium-Ion Pack
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Voltage & Capacity: Precisely engineered to meet original Inogen G5 specifications.





| Battery Capacity | 46.1W |
| Voltage | 14.4V |
| Model No | BA-500 |
| Warranty | 12 Months |
🔋 Lithium-Ion Battery Conditioning
For optimal electrochemical performance, new lithium-ion batteries should undergo 2–3 complete charge and discharge cycles before reaching full capacity.
This stabilization phase allows the internal cell chemistry to achieve balanced ion distribution, ensuring maximum runtime, stable voltage output, and extended cycle life.
After this initial conditioning period, no further full discharge cycles are required.
🛡 Premium Warranty Protection
- 12-Month Limited Manufacturer Warranty
- 60-Day No-Hassle Money Back Guarantee
- Up to 60 Days Refund Window (Policy Based)
- Replacement for defective or misrepresented items
- Dedicated customer service response within 24 hours
🚚 Professional Shipping Standards
- Orders processed within 24 business hours (excluding weekends & holidays)
- Real-time tracking number provided upon dispatch
- Transit time varies by region and logistics carrier
- Please verify your shipping address before order confirmation
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📌 Product-Specific Notice
📩 Customer Care Commitment
We are committed to delivering professional-grade battery solutions and responsive after-sales service. If you experience any issues, please contact our support team before leaving feedback.
⚕ Safety & Compatibility Notice — Medical Device Battery
This is a replacement battery for the compatible medical device model(s) listed above. It is not a finished medical device. The following guidelines apply:
| Who should install | Qualified biomedical technicians or authorized service personnel following the device manufacturer's service manual. AED/defibrillator batteries must comply with your facility's maintenance protocol. |
| After installation | Perform a full device self-test per the manufacturer's guidelines. Record the replacement date and result in the device maintenance log. |
| Certifications | CE · CB · RoHS · UN38.3 · IEC · FCC · MSDS compliant. Shipped in compliance with IATA dangerous goods regulations. |
| Emergency use | In a medical emergency, always contact local emergency services (911 in the US). This product does not replace emergency response services. |
| Liability | Accessories-Mall supplies replacement batteries for maintenance purposes. We are not liable for outcomes resulting from improper installation or failure to perform post-installation device testing. |
Not sure this battery fits? Send us your device model number — we'll confirm before you order. | Full medical battery safety guidelines →
Cao Chuanping
Power Systems Consultant · 8+ years in replacement battery sourcing & evaluation · View profile →
All batteries sold on accessories-mall.com are replacement parts. accessories-mall.com doesn't affiliate with any of the original manufacturers. Any registered trademarks or model names listed above are identified as purposes of showing compatibility only.