Slightly Used Inogen One G4 Single Battery

$ 374



✔︎ Enjoy Portable Use of the slightly used G4 with the lightest Available Package
✔︎ Compatible with 3 Different Charging Options to Compliment Your Independent Lifestyle
✔︎ Strain Free Removal
✔︎ Lightweight & Compact Design that Allows You to Easily Travel with Extras

Flow Rate Expected Battery Life
1 Up to 2.7 Hours
2 Up to 2.25 Hours
3 Up to 1.33 Hours
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Slightly Used Inogen One G4 Single Battery

Enjoy restriction free portable operation of the slightly used Inogen One G4 portable oxygen concentrator, while enjoying the lightest possible package with the slightly used G4 single battery.

Unlike cumbersome medical oxygen tanks that need to be refilled or replaced, when the single battery dies simply recharge it using one of the 3 available options. You can minimize the usage of charging options by purchasing additional single batteries for your slightly used Inogen One G4.

Regain your freedom to run errands, attend family events, catch up with friends for lunch, and so much more with the help of an additional slightly used Inogen One G4 single battery.


Freedom Enhancing Battery Life

No longer experience the fear and worry of completely depleting your oxygen tanks while away from home. Instead, the rechargeable slightly used Inogen One G4 standard battery will keep your oxygen levels saturated for up to 2 hours and 15 minutes on a setting of 2. All while delivering the lightest possible package.

On the other hand, if you don’t mind a little additional weight in exchange for over double the battery life, check out the slightly used G4 double battery.


Battery Life:

Pulse Flow Rate Battery Life
1 Up to 2 Hours and 40 Minutes
2 Up to 2 Hours and 15 Minutes
3 Up to 1 Hour and 20 Minutes

*Battery Life is Dependent on Patient’s BPM.


Stay On Top of Remaining Battery Life

While out running errands or enjoying some quality family time, there will be zero need for you to consciously remember how long it’s been since your last charge.

Instead, the LCD control panel screen on the slightly used G4 displays both a battery gauge as well as the remaining battery life in a percentage directly on the home screen.


3 Convenient Charging Options

  • AC Power Supply
  • DC Power Cord
  • External Battery Charger

Whether you’re at home, on vacation, or on a road trip, you will always have a means of powering and charging your slightly used Inogen One G4 battery. The best part it, 2 of the 3 available charging options are included with the purchase of your unit.

AC Power Supply

The AC power supply is often the most used charging method. Compatible with any conventional wall outlet, you are able to efficiently charge the single battery while simultaneously using the concentrator on all 3 settings. An exceptional option when sitting at home watching T.V., reading a book, or doing household chores.

A fully depleted single battery will be fully recharged in up to 3 hours with the AC power supply. However, if you are using the POC during the charging cycle, it will increase the time it takes the battery to fully recharge.


DC Power Cord

For times when you are on the go in your car, truck, SUV, R.V., or boat, you will not want to leave home without the portable charging power of the DC power cord.

Instead of plugging into a conventional wall outlet, the DC power cord plugs into your vehicle’s cigarette lighter outlet. Allowing you to both charge and power your slightly used Inogen One G4 through your vehicle.

The best part is, you will have access to all 3 flow settings without disrupting the battery’s charging cycle. The DC power cord will fully recharge a depleted battery in up to 3 hours. Usage of the slightly used G4 while charging will increase the overall charging cycle.


External Battery Charger

If you will be purchasing more than one battery, which is highly recommended, the additional cost slightly used Inogen One G4 external battery charger is an ideal companion.

The external battery charger plugs into any conventional wall outlet, such as with the AC power supply, except the charging cycle occurs completely separate from the machine. Allowing you to charge 1 single or double battery on the side, while simultaneously using your slightly used G4 with another battery.

This is an ideal accessory for both home and while traveling, as it enables you to plug a battery in before you head out and once you return you will have a fully charged battery.


Battery Removal in Seconds

Even if you have a difficult time grasping onto items, you will be able to easily remove a depleted battery and swap it out for a fully recharged battery.

Simply press the blue “eject” button on the battery and it will remove from the base of the slightly used G4. Reinstall a fully charged single battery and once you hear a click the battery will be locked into place.


Frequently Asked Questions

How Much Does the slightly used Inogen One G4 Single Battery Weigh?

The single battery weighs in at a mere .62 pounds.

How Long will a Fully Charged Single Battery Last?

Up to 2 hours and 15 minutes on a pulse setting of 2.

How Can I Check the Status of My Battery?

The on-board LCD screen displays battery life with an accurate battery gauge as well as a percentage.

Can I Use the slightly used Inogen One G4 While Charging with the AC Power Supply or DC Power Cord?

Yes, all 3 pulse settings are accessible while charging with either the AC power supply or DC power cord. But keep in mind that using the concentrator while charging will increase the duration of the charging cycle.


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Mobility Return Policy

1st Class Medical is here to make sure our customers are satisfied with our products and services. Our return policy allows you to return or exchange your item purchased within 30 days of receipt, guaranteed. With our 30-day money back guarantee, if you need to return your device you are responsible for all shipping/handling costs.

Upon receipt of your item please inspect the box for damages. Once you open your package inspect your unit, we test every unit before it leaves our facility, but sometimes units do arrive damaged or defective. We apologize for this inconvenience and ask that you contact us immediately.  If a unit is damaged in shipping, we must notify the shipping company within 48 hours.  We cannot be responsible for shipping damage if you wait longer than 48 hours to notify us.

Within 30 days after your unit has arrived, if for any reason you are not satisfied we will refund your money 100% (excluding shipping & handling) for all new units.  The product must be returned in new condition, in original boxes, and with all paperwork, parts and accessories in order to satisfy our return policy.  We cannot accept C.O.D. deliveries. For your protection, we recommend that you use UPS, FedEx or Insured Parcel Post for your return.

We can’t sell a product as new if it has been damaged or used.  The 100% return policy is only valid if you contact us within the first 30 days and the unit remains in unused/like new condition, has not been used in a smoke-filled environment. Units must be returned in original packaging for 100% return policy.  If a unit has been opened and used within the home a 15% re-stock will apply to your return plus shipping charges/handling charges.  

All returns require a return authorization. Please contact us, 1-800-520-5726, so that we can assist you with doing so. You must pay for return shipping costs.  When returning the unit to us please insure the package for the full value.

Within the 30 days, please contact us and will we assist you with a refund.  All returns require a return authorization. You are responsible to pay for return shipping costs.  When returning the unit to us please insure the package for the full value.  Contact us to receive a return authorization.1-800-520-5726 

After 30 days, we apologize for any inconvenience, but we cannot refund or exchange your unit.

All items returned without a return authorization, including items returned to us for refusal delivery, are subject to the 25% restocking fee. 

Any units that are returned due to customer-caused damage, the customer is responsible for all parts, labor, and shipping charges to return the unit to us for repair.

All new units come with a factory warranty.  Warranty repairs can be handled by contacting us 1-800-520-5726. You are responsible for all shipping costs on warranty work.