This battery pack works in the campsite, on the boat, in fact everywhere, and it works with Respironics and Resmed machines 
Unfortunately, there are not approved for use in air travel.

(Respironics or Resmed inverter included - please specify below)

Power to go

Respironics’ new Universal Portable Battery Pack and DC Power Accessories are specifically designed for use with a wide range of our respiratory and sleep-related products.

Whether powering one of our CPAP or bi-level devices, the Universal Portable Battery Pack is ready to go in places where conventional electricity is not available. Best of all, these accessories help give you the freedom to travel and participate in activities away from home.

The Universal Portable Battery Pack is the ultimate in power portability and convenience. At 6.5kg (14 pounds), this rechargeable battery is lighter and more compact than traditional gel cell, marine-type batteries that can weigh as much as 50 pounds. Our new Universal Portable Battery Pack has a 14.4 amps. per hour rating and it comes with a one year warranty. 

The Universal Portable Battery Pack comes in a spiffy black Travel Bag, with padded carry handle and front pocket. Looks just like a large camera case. Overall size is 19cm wide, 16cm deep and 23cm high. Your inverter/converter plugs into the barrel receptacle accessed through the front pocket. Recharging is from mains power using the enclosed power cord.

Expected Length of Operation with Universal Portable Battery Pack
The chart below shows expected length of operation for selected Respironics compatible systems when using our Universal Portable Battery Pack. Length of operation may vary when using non-Respironics batteries.