Thanks. This is is so low priced, it’s actually scary. I don’t know how they can get 6 LG cells and all the rest of the hardware and still sell it at a profit at this price. Some of the reviews are rather critical. I don’t mind paying a little more for peace of mind.
When you mentioned 20,000mAh’s, the number stuck in my head and I also thought you wanted one for $20.00 or less…LOL. Sorry, I had a temporary brain lapse. Funny thing is, the batteries are
worth more than the power bank itself.
If Pete doesn’t mind me posting a link to a much higher capacity power bank in his thread, I’ll do that. I really need to take some photos and start a new thread on these. I’ve been most impressed with them
and for $200.00 or less, I think it’s a bargain considering what the Goal Zero brands and such cost.
I can trust that last one too since I have tested it to be 91% efficient at 5V 1A, and 89% at 5V2A. Which is quite good.
BTW, guys, the reason I only buy power banks with cylindrical cells is because if the power bank dies before warranty ends, I can just ask for another power bank from the brand. It happened once with my RavPower QC 3.0 20000mAh one, in which one of the USB-A ports broke, and caused a soft short, emptying the bank in about 2 days.
After I received the new powerbank, I opened up the pack, and found 6x3400mAh cells, and I now use them in many of my flashlights.
TLDR: Only buy 18650/26650 power banks so you cab salvage the cells later if something goes wrong.
Finally, Pete, don’t sorry about some of their prices. With the 10000s of cells they are ordering, they must be getting them at 1.35-2$ a piece, then picking the cheapest case and electronics for the ones <20$, and much more efficient and powerful >30$.
Look at Xiaomi power banks - they make the best bang for buck banks on the market. The 20,000 mAh go for around $35, contain Panasonic/LG cells and have a conversion rate of ~93% (12,700 mAh actual)
That is just for input, not output.
I am looking for 9V/2A output.
The one in the Youtube video is VSP304. The one on Amazon is VSP303. I wonder what the difference is.
Looks nice though. I don’t mind that it’s not 18650/26650 based.
Just to update this thread, I ended up ordering the Romoss one that BlueSwordM provided a link to earlier, based on a combination of price, good reviews, and high overall current output. It does not have QC 3.0 output, which was one of my original requirements, but I just couldn’t find something with QC 3.0 that was also reasonably priced, had great reviews, and was made by a reputable company. 5V/2.4A output will be good enough for me, I guess.
It’s a legit 20Ah powerbank, with a max combined output of 36W using both the QC 3.0 and USB-C port.
For some reason, they all use the same powerbank circuit as the RavPower QC 3.0, but just has a less capable buck converter for charging, meaning the “clones” only charge at 18W vs the 24W the RavPower is capable of.
I have that one, capacity charging speed, output are all good.
But construction is sub-par.
Two of it’s 4 port wiggled a bit when I first got it. Now after a year the ports can only be used when you push them exactly the right way.
If not they ‘disconnect’ and don’t charge at all.
Thanks BlueSwordM,
I got this one you linked to for use with the mini TS-80 soldering iron and it needs QC 3.0 and USB-C. Hopefully it will be a nice portable solution. As a plus I can charge my phone and flashlights with it when needed.
I ordered the 30k Romoss from Amazon, they have a 39Percent off coupon right now. Came to like 23 bucks plus tax. It’s a beast, already arrived. Thanks for the information.