24V Battery Pack for laptops and other medical devices

24V Battery Pack ,Super portable CPAP Battery Pack for CPAP's ,BiPAPs and all devices voltage 24V. 24V Battery Pack  Super portable CPAP Battery Pack for CPAP's ,BiPAPs and all devices voltage 24V. CPAP battery's SpecificationPower: 300WhDimension: 250*35*150mmWeight: about 2.2kgChemistry: advanced lithium polymer basedOutput voltage: DC24vInput voltage: DC24VOutput current: 2.5AInput current:2.5A Charging time: about 7 hourCycle life:≥500 timesAvailable colour : blackAccessories: 8 set convert tips .bag. adapter(24V,2.5A).  Battery Pack  Function:1. used for most of brands CPAP machine and all 24v devices.2. Out of power can be placed at anytime and anywhere3. High capacity, little size, convenient to carry4. Various circuit protection functions, to ensure the safety and stability of item, such as protection from overcharge, over discharge, overheat5. Two kinds of low electric quantity alarm pattern. LED indication alarm and sound alarm.6.It can be recovered itself, when shot circuit.7. It can be charged and discharged simultaneously .