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Omars 40200mah 146Wh Laptop AC Portable Power Bank w/ Outlet & Dual USB Ports EXPIRED
$55
$109.99
+ Free S&H
Wellmade Brands via Amazon has Omars 40200mah 146Wh Laptop AC Portable Power Bank w/ Outlet, Dual USB Ports & 90W AC Output for $109.99 - $55 w/ promotional code JRMQE28Y = $54.99. Shipping is free. Thanks qryrt
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Original Post
Written by
Edited June 18, 2020
at 03:14 PM
Amazon.com has AC Power Bank, Omars 40200mAh Battery Bank with Outlet Portable AC Power Plug Laptop Power Bank Universal Power Bank Travel Charger (Dual USB Ports, 90W AC Output) Compatible with MacBook, Notebook for only $54.99 After use 50% Off coupon code: JRMQE28Y at checkout. Thanks
https://www.amazon.com/dp/B07D9KZ4W3
https://www.amazon.com/dp/B07D9KZ4W3
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82 Comments
Featured Comments
And this unit runs off a battery. DC.
So it's taking DC, and inverting it to AC. Which then feeds a power brick, which converts it back to DC.
What are we looking at? 10% loss for the invert, then another 10% for converting back? 81% efficiency?
Yes, I know it's better than nothing. But it's irritatingly inefficient.
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Comments say it includes charger
Can they just call this 40Ah already :-)
Great deal but I wish this had 12VDC output for CPAP use (like this [amazon.com]). The AC output will probably work fine, but its inefficient (and wasting battery life) to convert from DC batteries to AC (builtin inverter) and back to DC (CPAP adapter).
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And this unit runs off a battery. DC.
So it's taking DC, and inverting it to AC. Which then feeds a power brick, which converts it back to DC.
What are we looking at? 10% loss for the invert, then another 10% for converting back? 81% efficiency?
Yes, I know it's better than nothing. But it's irritatingly inefficient.
YMMV
https://www.faa.gov/hazmat/packsa.../?hazmat=7