Lithium Pure Sine Wave Power Device AMAZON
Powkey 200Watt Portable Power Bank with AC Outlet for Camping 42000mAh Power Supply for CPAP ,2 AC Ports, 4 USB Ports, 2 DC Port by powkey 4.3 out of 5 stars 57 customer reviews Price: $145.89...
Forum Discussion
road-runner wrote:
Can anybody explain to me how the mAh rating is of any use? With some digging you can find the useful storage capacity value of 210 Wh. Does the mAh value serve any purpose other than advertising a larger number, even if it doesn't mean anything at all for how much energy the device can deliver?
The mA rating is typical of small batteries.. Larger batteries (you know the ones which weign in at many pounds like 20 or more) tend to be rated in amp hours.
The "m" means 1/1000 so if you want to know what the Amp Hour rating is just divide by 1000 2500 mAH = 2.5 AH. that simple
Now for me at least it is. but I know many who claim they can never understand "Metrics"
10 pennies in a dime
10 dimes in a dollar
10 dollars in a 10 spot
10 ten spots in a C note (C stands for 100 by the way and c for 1/100)
10 C notes in a Kilobuck (Grand 10000)
If you are going down the road at 60 and pass a sign that says Speed Limit 40 and glance in you rear view and there he is .. Officer smiley. Big smile. OVerhead lights on . Pointing you to the curb. What is about to happen..... And will it be KPH or MHP?
(Hint 40 is a valid limit in both standards and.. I DID NOT SPECIFY!).
And that folks.. is all you need to know about metrics. You are not experts.
How to convert from "F" to "C" well I do that easily too but you really don't need to know that.. All you need to know is -40 is TOO DANG COLD.
