I have a battery recharger that requires 26,800 mAh to charge. How many KWH is that? I would guess 2.6 but it could also be .26 or .026. Help
Kitkat, realize WHY you received varying answers: You did NOT give all the info, nor even enough info, for a correct
simple answer. There is NO answer possible to this question with only 26,800mAh given. Next time you ask a technical question, be sure to give ALL the info - as you finally did in your follow up post.
No one has had a respectful answer. Everyone wants to modify their replys. I gave the data from the device label. 26800 mAh/96.48wh, input at 5V and 2Amps: output at 5V and 4Amps. Model A1210 2nd Gen Astro E7 Anker model A210. What amount of electricity does it require to charge this device from a full discharge? I do not know how to calculate it. Is their someone out there who would be willing to give me a simple answer? I don't think I am far off, but someone out there has a better idea of the relationships between amps, volts, and mAh's. Hopefully. I just wonder if there is someone out there who can give me at least a glimmer of how to find this answer. Guess I am just an ass to even ask. Thought the internet was where you could find answers. Just leave me as ignorant, and unable to ask questions so that people will consider answering..... Cool....
Some will look at this info and say "not possible" since it does not explain well that the INPUT is 2amps MAX - for charging, and the OUTPUT is 4amps MAX for your loads. It assumes you charged it for some time at upto 2 amps, then you can pull upto 4 amps out of the (heehee funny specs) "26,800mah" battery inside - for upto 1/2 time it was on 2amp charge.
Perhaps you are not aware you did NOT give the data from the device in your post?
NOW you give enough info for real answers. BUT your question is PROBABLY wrong, so you will - and did - continue to get varying answers. You originally asked "how many KWH is that?" Now that you gave the missing info, you can have, and in fact received THAT answer: 0.09648 KWH.
I am curious: what are you going to use that answer for? Do you have some device that needs to know this number? Will this number tell you how long it will take to charge a fully discharged battery? What good is this answer to you? I suspect you asked a WRONG question to begin with, in addition to not giving enough info for an answer....
Now you ask a different question "
What amount of electricity does it require to charge this device from a full discharge?" I again respectfully ask you kit, what use is this answer? How will you use it to benefit your use of this device? I cannot imagine ANY useful purpose to have this answer, even as ambiguous as IT is. What do you mean by "how much electricity?" In amps? In volts? In power? In time? In energy? As an engineer, I am VERY interested to learn how you will use the various answers you got/will-get from this ambiguous question?
I suspect your questions have all been geared to find out how to charge this? It is charged by plugging into a std computer or wallwart USB port. All USB ports are 5vdc. It clearly states it is rated at a max input of 2amps. So there is the USEFUL answer for you? 2 amps. Says so right in the device spec shown here:
http://www.amazon.com/Upgraded-Capacity-Anker-Ultra-High-Technology/dp/B00M3073L4
Maybe you wish to know how LONG it would take to charge a fully discharged unit? Now THAT info would be useful to know... So its simple answer is 96.48wh/(5v*2a)= 9.648 hours. Being a lithium battery, you will put in an extra 3-4wh, so in reality, it will be closer to 10.048 hours. Assuming the device is really capable of being discharged fully to 0wh or 0v, actually the recharge time will likely be infinite, as discharging 'fully' will kill the lithium battery and you can buy a new device.
BTW, this device is 'rated' 26,800mah @ 5vdc... Just realize this is not possible. Someone was smoking something funny, or has a special marketing degree, to have written that rating on it. A REAL 26,800mah @ 5v battery takes up a space at least double this units 18.7 cubic inches.