Review on TalentCell PB240B2 - High-Capacity 12/24V Lithium-Ion Battery Pack With Multiple Outputs For LED Light Strips, CCTV Cameras, And Smartphones by Michael Barrett

I was skeptical about whether or not this would work considering how inexpensive it was compared to the recommended $400 unit that I found online. Following other reviewers' advice, I purchased the TalentCell DC 24V Power Cord, 5.5 x 2.1mm Male to DC7406 for less than $20 and it worked! I got 2 nights sleep (8+ hours each night) while charging my iPhone from one charge of the TalentCell.I only have a couple of minor comments. I have yet to see 1 or 2 charge bars on the unit. It either shows 0, 3 or 4 bars depending on how much it is charged. Also, I had to power the unit on and off a couple of times before it would power on my ResMed. No big deal but just a comment if anybody else is seeing similar results.With all of this, I highly recommend the unit with the power cord considering it is 1/4 the price of ResMed recommended unit.