This product bring another level of freedom to the Transcend Travel CPAP. Get out and enjoy camping or just have a backup plan. This battery makes it happen. Weighs 0.6 pounds (272 g). Charge with the Transcend Multi-plug Universal Power Supply, Mobile Power Adaptor, or Portable Solar Charger. The P4 Battery provides approximately 7-9 hours therapy at a fixed pressure of 14 cmH2O.
**Actual Battery duration depends on many factors and can vary.**