External Battery for Mobi Portable Oxygen Concentrators


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External Battery for Mobi

  • Brand:ResMed
  • Part Numbers:35052
  • Warranties:1-Year Manufacturer's Warranty

This External Battery Pack is designed for use with all Mobi Portable Oxygen Concentrators. It is a great way to extend your time away from fixed power sources with your Mobi POC. The External Battery Pack will power the Mobi for up to 4.5 hours on average depending on oxygen flow settings.

Mobi External Batteries WILL recharge automatically whenever they are attached to the Mobi as long as the concentrator is attached to a fixed AC or DC Power Source.

Usage Information: For best results Mobi Portable Oxygen Concentrator batteries should be fully charged, via AC (wall) power, prior to first use. Some vehicles may not have sufficient power output to the DC Power Supply to both operate the device and charge Mobi batteries. Test your vehicle's charging capabilities prior to taking a trip. For complete instructions review the documentation that came with your equipment.

Compatibility Information:This External Battery is compatible with both ResMed Mobi & LifeChoice Activox brand Portable Oxygen Concentrators.


  • Manufacturer:ResMed
  • Part Numbers:35052
  • Warranties:1-Year Manufacturer's Warranty
  • HCPCS Codes:E1356
  • GTIN Codes:00619498350520
  • FLEX SPENDING:Can be purchased with FSA & HSA Cards


  • Battery Dimensions:3.15 x 4.00 x 2.00 Inches
  • Battery Weight:1.1 Lbs
  • Battery Runtime:4.5 Hours at Setting 1, 3.0 Hours at Setting 2, 1.9 Hours at Setting 3, 1.6 Hours at Setting 4
  • Battery Recharge Time:1.8 to 3.1 Hours
  • Battery Life:500 Cycles
  • Battery Type:Rechargeable Lithium Ion (Li-Ion)
  • Battery Capacity:14.8 V, 4400 mAh / 65 Wh
  • Battery Notes:For best results, recharge the external batteries as often as possible. Avoid leaving the device or external battery in a hot environment, especially if exposed to direct sunlight. For long term storage of the external battery, it is recommended that a charge of approximately 40% be maintained on the battery