Skip to content
CPAP
Backup Battery
Menu
Calculator
Battery Finder
Tools
Guides
How we research
About
Home
/
Tools
/
Glossary
Reference
CPAP Battery Glossary
Plain-language definitions of common CPAP battery terms. Tap any term to expand.
Basics
Watt-hour (Wh)
+
Amp-hour (Ah)
+
Voltage (V)
+
Watt (W)
+
Battery Types
LiFePO₄ (LFP)
+
Li-ion
+
Lead-acid
+
Depth of Discharge (DoD)
+
Cycle life
+
Connections
DC (Direct Current)
+
AC (Alternating Current)
+
AC Inverter
+
DC-to-DC converter
+
USB-C PD
+
Features
Pass-through charging
+
UPS mode (Uninterruptible Power Supply)
+
Pure sine wave
+
Accessories
HME (Heat Moisture Exchanger)
+
Travel
FAA 100Wh limit
+
Safety
UN38.3
+
BMS (Battery Management System)
+
Maintenance
Self-discharge
+