The PowerShell just got better with the Extended Life Battery! The New Extended Life Battery has twice the battery capacity of the original Overnight Battery. When using your Z1 or Z2 at the highest settings,(20 cmH2O, Z-Breathe 3) CPAP therapy should last 8.9 hours. With lower pressure settings you should get even longer therapy.
The PowerShell can go anywhere. Weighing only 9 ounces alone the Z1/Z2 Series PowerShell Battery will never weigh your bags down. The compact battery and cradle simply fits just about anywhere, making it so easy to pack and take with you in your travels.