10400mAh power bank. (yeah right!)

I cant for the life of me remember where I got it but I have that battery enclosure except instead of the batteries being wired in it had the spring slots to load individual 18650s

Drachnien

3A is well out of spec for most chargers.

Adam Baxter

equipment that normally draws more just stays charging at 500mAh, perhaps the dummy load acts as a different beast. However it is good looking so I am happy to use it for low current and voltage use.

MNH

I have a similar but double size unit, got off from Ali express last year. It was as sold as an empty' case for your own cells. Even with decent capacity cells kit still exhibits similar characteristics. Ie a 500mAh load drops the voltage to 4.66v but it stays at that level. A piece of eddqaauip

MNH

The reason I dislike the fancy "auto-off" power banks is because they won't charge any of my Bluetooth earbuds! They all charge at too low currents apparently...

kalleboo

You already mentioned that higher capacity batteries could be swapped in, but is there anything one could tweak on it to make it output more? Hack it into something useful, so to speak.. :) Seems like a nice package to utilize.

The case is really nice. I might buy it just for building my own Powerbank with some nice Samsung cells and a charging circuit i have that MIGHT fit in there.

Andreas

As always thank you Big Clive for showing us cool things. Nowadays I'm looking for a power bank that can provide closer to 3 amps for running a Raspberry Pi "emulation station" that I put together.

Michael Thompson

hi Ignore all my waffle and just read the last link "this is worth a read" if you flying with electronic kit. ​ So they all quote the capacity [exaggerate] of the cells and not the boosted 5v output capability, it is a bit like saying "how fast a car can go" based on its gearbox engine RPM; True-lies. I bought this EC Technology 22400mAh Power Bank Ultra High Capacity External Battery 3 USB Output(5.5A) Powerbank Dual Input Port (4A) Portable Charger with Auto IC for iPhone, iPad, Samsung, Nexus and More, Black and Red <a href="https://www.amazon.co.uk/gp/product/B00F5Q4F0U/ref=oh_aui_detailpage_o03_s00?ie=UTF8&amp;psc=1" rel="nofollow noopener" target="_blank">https://www.amazon.co.uk/gp/product/B00F5Q4F0U/ref=oh_aui_detailpage_o03_s00?ie=UTF8&amp;psc=1</a> I paid 23.49 it is now £22.99​ ​I was t​hinking that I was going to get the same thing that was reviewed by Julian Ilett​ Published on 5 Nov 2017 ​NO not the same. DUAL CHARGING at 4amp What is good about the unit I got is that you can charge it with two separate 2amp cables at the same time The problem is that they may take it off me at the airport ? A sad thing is my battery charge monitor has gone wonky, it made me think the powerbank was faulty. I need to do more testing. I need a rule of thumb to give me the best expected capacity at 5v. It feels heavy let us hope it is not sand. It did seem to drain faster than I thought when I connected it the the {eBay clock kit. Full build and setting guide.}​ that Clive did last year​. TIP always charge with SHORT good quality USB cables, cable loss and heating at 2amp will get a bit silly with many Chinese wires that we are now getting. Have you seen what and how many powerbanks you can take in hand luggage on a flight, not allowed in your checked suitcase luggage, see the new rules. <a href="https://www.gov.uk/hand-luggage-restrictions/electronic-devices-and-electrical-items" rel="nofollow noopener" target="_blank">https://www.gov.uk/hand-luggage-restrictions/electronic-devices-and-electrical-items</a> Confusion [100Wh] is it the capacity of the powerbank or the cells ? I guess it will depend if the airport security fancy taking it off you. No good showing the maths. <a href="https://www.easyacc.com/media-center/are-power-banks-allowed-on-a-flight/" rel="nofollow noopener" target="_blank">https://www.easyacc.com/media-center/are-power-banks-allowed-on-a-flight/</a> I guess the rules may change again soon ? <a href="http://metro.co.uk/2018/02/01/fire-breaks-crowded-plane-portable-charger-explodes-landing-7277938/" rel="nofollow noopener" target="_blank">http://metro.co.uk/2018/02/01/fire-breaks-crowded-plane-portable-charger-explodes-landing-7277938/</a> THIS IS WORTH A READ before you take anything electronic with you, it covers a few airlines <a href="https://www.aph.com/community/holidays/electronic-devices-new-security-rules-gatwick-airport/" rel="nofollow noopener" target="_blank">https://www.aph.com/community/holidays/electronic-devices-new-security-rules-gatwick-airport/</a> all the best John

John Harrison

Be cautious!

Ryan G.

Have a few similar ones but mine came without batteries so I was able to use recovered laptop 18650s.

John Carr

So I've done a little bit of testing - what I did notice is that if you've got the thin white USB cables from anything like this, throw them out! Some of my batteries would only charge at 100-200ma with it, then switching the cable out for a known good one meant the battery charged at 850ma (measured with a cheap USB meter, so YMMV)

Adam Baxter

I thought I had one of these - but I've got the original one: <a href="http://www.mi.com/en/pb10400/" rel="nofollow noopener" target="_blank">http://www.mi.com/en/pb10400/</a>

Adam Baxter