Inogen One G4 Single Battery

In Stock
 Free Shipping 

Starting at $37/mo with affirm icon. Prequalify now

Notify Me When It Is In Stock

Ship to credit card billing address only, no address changes due to frequent fraud.
Battery may be returned if unused and in original packaging.
Ground shipping to lower 48 US states only.
This product is excluded from promotional codes and coupons. 

Key Features:

  • Replacement/backup lithium-ion battery for Inogen One G4 Portable Oxygen Concentrator
  • FAA-approved
  • Lasts up to 2.7 hours fully charged
  • Fast recharge in 3 hours or less
  • Battery latch for easy removal
  • LED indicators display battery life
Product Details

Inogen One G4 Single Battery

Designed for the Inogen One G4 Portable Oxygen Concentrator, the G4 Single Battery empowers you to stay active and independent. With a battery runtime of 2.7 hours on a full charge, this FAA-approved lithium-ion battery is perfect for running errands, exploring new places, or simply enjoying time with loved ones. The G4 Single Battery also acts as a backup power supply when there’s a loss of AC or DC power to the Inogen One G4 Portable Oxygen Concentrator. 

The Inogen One G4 Single Battery can be charged while attached to the G4 concentrator using the G4 AC Power Supply or G4 DC Power Adapter. The battery can also be charged separately using the G4 External Battery Charger. The G4 Single Battery will even charge as the concentrator is in use, ensuring uninterrupted oxygen therapy. Fully charge the battery in up to 3 hours and enjoy your active lifestyle without limitations. 

Battery Duration

Battery duration listed below are approximate values. Battery duration is affected by a number of factors including operating temperature, battery age, altitude etc. 
Setting 1:
2 hours 40 minutes
Setting 2: 2 hours 15 minutes
Setting 3: 1 hours 20 minutes

>>Need more battery life? Get the Inogen One G4 Double Battery for up to 5 hours of runtime on a single charge.<<

Battery Life Indicator

To check the remaining battery life, simply press the green battery icon button and wait for the LED indicators to light up. The number of illuminated LEDs will tell you the amount of battery charge available:

4 LEDs: 75% to 100%
3 LEDs: 50% to 75%
2 LEDs: 25% to 50%
1 LED: 10% to 25%
1 blinking LED: Less than 10%. The battery needs to be recharged.

Usage Instructions

Power off the concentrator before replacing the battery. Then press and hold the battery latch button and slide the battery off from the bottom of your Inogen One G4 concentrator. Slide the new battery into place until the battery latch button returns to its original position with a click. 

Note: When charging a fully depleted battery, the charging process may start and pause for the first few minutes. 


Weight: 2.8 lb (attached to Inogen One G4 Portable Oxygen Concentrator)
Dimensions: approx. 5.91”x 2.68”x 1.3” (LxWxH)
Rated Input: 12.0 to 16.8 VDC (±0.5V)
Power Gauge: 4 stage charge level indicator lights
Recharge Time: up to 3 hours by AC or DC power
Battery Duration: up to 2.7 hours on setting 1
Warranty: 1-year limited warranty

Battery Care Information

To extend the runtime of the battery, avoid running the Inogen One G4 in temperatures below 41°F (5°C) or higher than 95°F (35°C) for prolonged periods. 

Store the G4 Single Battery in a cool, dry place when not in use. For optimal battery health, please do not store the battery with less than 40-50% charge. If you have more than one G4 battery, rotate the use of each battery regularly and avoid leaving batteries idle for more than 90 days at a time.

Related Parts
Technical Data
Battery Recharge
Up to 3 hours
12.0 to 16.8 VDC (+/- 0.5V)
Battery Warranty
1 year
Item Includes

 1x Inogen One G4 Single Battery

Reviews (0)
Share your review with our customers and earn $2.00 worth of points!
Q&As (0)
Have a question on this item? Ask here and we will answer it in 12-24 hours, usually in a few business hours! Questions and answers will appear here after we answer. You may also have email notifications.
How Can We Help You?
Our team is always here to support every part of your treatment.
call us
Call Us
We are here to help
chat with us
Chat with Us
Talk to a human, not a bot
email us
Email Us