Has anyone noticed the eBay offerings of HUGE mAH banks? 50,000, 100,000, 330000 etc ! One listing says the capacity is based on “theoretical maximum ” - a new theory perhaps?
They are the same size and weight as the smaller ones. There are teardowns on the web and youtube showing the markings on the batteries/cells. Yep, they are the normal small ones. Watch out for the ratings for the output too. Not talking about conversion efficiency. Some rate the output mAH as the battery mAH. Do it in Watt Hours and you will see what I mean. So, try this calc for yourself : 3.7V @ 10,000 mAH gives 5.0V @ xxxx? mAH. Here in Australia I bought from Office Works [large chain store]. They were not much dearer than cheapies. The advantage is their returns policy. They are exceedingly easy to deal with over tech problems and warranty issues. Well worth the extra price. John K From: neonixie-l@googlegroups.com [mailto:neonixie-l@googlegroups.com] On Behalf Of alb.001 alb.001 Sent: Monday, 8 April 2019 09:26 To: neonixie-l Subject: Re: [neonixie-l] OT: Duracell power bank You don't need to go all the across the ocean. I bought a 10,000mAh power bank, USB rechargeable with battery status indicator for about $15 from a store in Toronto.. It was a promotional product for intuit QuickBooks. No brand name on it but it has an item number 7121-18WH on the back. made in China. Look around, they are not rare. Good luck Phil for Brampton ON. ---------- Original Message ---------- From: jb-electronics <webmas...@jb-electronics.de> Date: April 7, 2019 at 7:06 PM Hello Nixie friends, This is a bit of an off-topic thing, but I finally caved and realized that I need a USB power bank because my phone runs out of battery too quickly when I travel. I found this nice-looking power bank from Duracell here: https://www.duracell.co.uk/product/powerbank-6700mah/ I am having a hard time finding it for sale outside of the UK, though, and they do not ship to Canada. If there is somebody in this group who is based in the UK and is willing to get it for me, I would be more than grateful. Please send me an email off-list. Many thanks! Best wishes Jens -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/888e157c-48c6-0e68-51a7-fa8a1cfcf0ce%40jb-electronics.de. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/2115364913.2186128.1554681331579.JavaMail.open-xchange%40mtlgui02 <https://groups.google.com/d/msgid/neonixie-l/2115364913.2186128.1554681331579.JavaMail.open-xchange%40mtlgui02?utm_medium=email&utm_source=footer> . For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To post to this group, send an email to neonixie-l@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/004e01d4edca%2435aca2b0%24a105e810%24%40internode.on.net. For more options, visit https://groups.google.com/d/optout.
