Duracell DPP-600HD To Power my C-PAP machine on camping trips

I bought this machine to power my CPAP. During 6 days camping trip, I was hawling this heavy machine every morning and evening to charge since I was not sure how long it will last. The Duracell DPP-600 did fine powering my CPAP machine. On another 2 nights camping trip, I used the machine for 2 nights and the battery lasted the whole time. The "3-digit barragraph LED indicator dynamically monitors the Duracell Powerpack's battery charge level" is NOT accurate at all. I am very happy with this unit for my intended purpose. One comparison I did with the Black & Decker PS400JRB Electromate 400 Plus Jump-Starter with Built-In Radio is that the B&D has a rather loud cooling fan when you turn on the AC converter whereas the Duracell does not have this cooling fan.