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Feb 11, 2020 at 21:20 comment added J. Doe @BrianDrummond I had no idea they do that! thanks for the useful information.
Feb 11, 2020 at 12:34 comment added user16324 That's mainly because power banks cheat and report capacity at the battery voltage (3.some) instead of the output voltage (5.0).
Feb 11, 2020 at 1:03 comment added D.A.S. Capacity will degrade going from C/20 to 5C rates batteryuniversity.com/index.php/learn/article/… It's called Peukert's law
Feb 11, 2020 at 0:59 vote accept J. Doe
Feb 11, 2020 at 0:58 comment added J. Doe @TonyStewartSunnyskyguyEE75 I wasn't sure if it's that simple... I had doubts because my 25000mAh power bank does not charge my 5000mAh phone 5 times, only like 3.5 times.
Feb 11, 2020 at 0:54 answer added user57037 timeline score: 2
Feb 11, 2020 at 0:53 comment added someonr Do you mean a Li-Ion Battery with 32V and 15Ah?
Feb 11, 2020 at 0:52 comment added D.A.S. How many hours using 5W from 500Wh (?)
Feb 11, 2020 at 0:39 history edited J. Doe CC BY-SA 4.0
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Feb 11, 2020 at 0:35 review First posts
Feb 11, 2020 at 6:07
Feb 11, 2020 at 0:34 history asked J. Doe CC BY-SA 4.0