@Griff726 One Best Buy reviewer said it does NOT support pass-through. But this same review said you also have to use the short cable that came with it to charge (because they tried a different cable with no luck). So…yeah…
@Griff726@katbyter That Best Buy reviewer was talking about charging the power bank itself. I call BS on that statement, though, that you have to use the cable it came with to charge it. It is supposed to be able to charge with either micro-USB or lightning cable. Then you can use the power bank to charge most anything that plugs into a standard USB-A port.
@JT954 this device appears to “be Apple-friendly” only in the sense that it claims you can charge the battery itself using your existing Lightning cable - it has a Lightning input charging port.
Otherwise, it appears to be Micro USB/Lighting phone/tablet ambivalent.
So the claim to fame would be if you’re an all Apple user, you only need to carry your Lightning cable to both charge this battery and your iPhone/iPad. Rather than also needing to also carry a micro USB cable to charge the battery.
The Best Buy reviewers who reckon it only charges via the supplied micro USB cable are either on crack or using shitty third-party cables. Mine arrived today and it’s charging just fine using my Lightning cable.
However, it’s been several hours now, and the readout hasn’t ticked over from 99 to 100. Makes me wonder if there is actually a third digit in the display or if 99 is as far as it goes. If it does actually go to 100, then that last percentage point is the slowest trickle charge I’ve ever encountered. I guess I’ll find out in the morning.
@awk normally, I’d completely agree on the Apple MFi certification.
However, in this case, it is a battery being charged via that “Lightning” connector, not an iPhone/iPad. The “Lightning” port is an input port on the battery to save you from having to carry both a Micro USB cable and a Lightning cable if you’re an Apple device user.
@defective if you bought just one by clicking on the buy button and completed checkout, you can’t go back and click the buy button again. You should have added them “to your cart” and bought them all at once.
I like to keep these in the basket of my bicycle for long rides to keep my phone/usb speaker charged. I won’t buy less that 10,000 mAh anymore. I still have a few of the purple ones that take forever to charge, but other than that work great.
On offers like this, with limited quantity and high demand, I set the maximum purchase quantity to one, to let more people in on the deal. I missed that setting for the first 30 minutes here, so some people were able to buy multiples, but it’s now set to one per person.
Sorry for the confusion there, but that’s why you’re only able to buy one now.
@Wolverine350r awww… my daughter had a young possum for a pet when she was a kid… they are actually pretty cool. She raised it from a baby after it’s mom was hit by a car and they found the babies in her pouch. Kept it for several months, then one day it just disappeared out of the container she had it in and we never did find it…weird.
@chienfou That does look kinda cool. The mouse isn’t total crap?
And how is it for location sensitivity? All of my current Qi pads have a limited sweet spot, which is fine, but with this, I’d kinda want to be able to put it anywhere on the pad.
It might be cooler still if you could just use your phone as a mouse. Might. Might also suck, but it would be a nifty parlor trick. Notwithstanding that people really don’t have parlors these days. There are other ways to turn a phone into a mouse, so I guess it could be done anyway, but those typically require kinds of connectivity blocked at the office.
@joelmw Mouse is OK, certainly not designed for gaming though (not that I care). There is a ‘sweet spot’ which encourages you to put the phone to the side so the mouse can use the ‘mousepad’ as God intended!
Having 12,000 mAh is nice but I really bought it for the QC3.0 port so I can fast charge my phone. Meh doesn’t mention the voltages you can achieve with that port but the manual does. It can go all the way to 12V at 1.5A.
Something else to note, the inputs are 2A which, in my experience, is pretty good. I think every battery I have can output high current but only charges at around 500mA. I’m going to have to test that 2A charging capability because that would put this battery in a class of its own.
Here are some more manual snippets:
Some people reading reviews of the product pointed out that you must use the cable that comes with it. That does not appear to be true according to the manual (unless maybe they mean for charging the Tzumi device itself but I still doubt it to be true):
I was going to buy 4 of these when I saw the listing pop up at midnight, but I only bought 2 to let others have a chance (that and my OCD). I’ll be willing to trade both of them for the IRK I couldn’t snag on Monday
@jzmacdaddy So tempted to take you up on that offer with the one IRK I snagged during the Mehrithon, but I don’t know what’s in it yet, so… This is suddenly a very useless post. Not my first, unfortunately.
@cinoclav@rprussell@tngrannyd in fact, you could use it to recharge a smaller battery pack if you wanted … though that would be of limited use unless you were charging these so you could use multiple fans at once…
@RedOak i cannot disagree on the merits of either the product, or the pricing. Meh, and the original woot, made their bacon on low priced tech items, and it’s been pretty thin pickings on those items for quite some time.
However, this limit to one, the move to multiple tiered times to buy stuff, etc is not full blown post amazon woot level messed up, but it’s definitely NOT the original 3 item, list it til it’s gone, semi-cool stuff for cheap that it should be.
With the original format, you knew there would probably be a “good deal” many, if not most times, and you knew if it was a really good deal you better be there at midnight, or you didn’t get it. The new model has these deals much less frequent, and it could be at any of three different times, and they may get moved around. So now instead of checking every night, I check when I check, since the products have become ho-hum (worse than “meh”), prices are usualy not worth the risk, and the overall experience is also less than “meh”.
So, as a very long time dave fan/customer, I do believe he needs to go back the format that made him what he is. But, I don’t write the rent checks, so I’ll just sit and complain…:)
If all a company does is 100% nobrainer buy-tempers, it might not be long for this world because it goes broke.
Between first 18-month launch/promo budget investments like @JonT’s full time position, stirring the forum pot, seemlingly every week giving away product, and the steady stream of (apparently subsidized/zero margin) deals that drew @Unixrab to proclaim, it was all a VMP-fee sucker tease/bribe… at some point that level of subsidy could not endure.
@RedOak I gotta admit I have been on way more than usual since I was up and at work at 0245 and ER has been slow. Just 4 more hours than I will be headed home and most likely not stay abreast of this thread!
Well THAT was confusing. I’m at work so when I pulled up the site on an incognito chrome window it said they were sold out. Then when I went to log in to ask how the F@#$ that had happened with the deal paused, it correctly listed the deal as paused.
@blaineg AFAIK, product being offered that has very positive reviews and is seemingly only available for much many more bucks being offered by Meh who only has a smaller-than-desired quantity available. Or they are messin’ with us. Either way, with the recent Mehrithon and then the pop socket joy (for some) the next day, seems like people are prepared to post and buy today.
I just checked my bag and I have no fewer than 4 USB-C charging cables, two USB-C to USB-A cables, a mini USB Type B cable for my calculator, a micro USB type B for anything that might need it, a lightning cable even though I don’t own any apple products, my Laptop charger (I have a laptop dock for my desk so I keep the charger in my bag), a USB-C wall brick, three USB-A wall bricks, a 20000 mAh portable charger, and a 8000 mAh portable charger. I just don’t like the idea of running out of power while I’m out
Received mine today and here’s a quick review.
Using QC3.0 port, I can get the voltage up to 12 volts and can use up to 1 amp.
But, the second I increase the load to 1.06A, the voltage drops all the way to 3.95 volts.
Going down to 5 volts on that QC3.0 port, I can get about .52 amps before voltage starts to drop.
Going to a load of 2A drops the voltage all the way to 4.55 volts.
Going to a load of 2.5A drops to 4.47 volts.
Going to 2.83A, drops to 4.32 volts.
The regular non-QC3.0 port claims to have a 2.4A output.
But that port becomes completely unusable at 4.25 volts.
The reason I bought this was so I could quick charge my Samsung Galaxy Note 9 using quick charge. Unfortunately, it doesn’t do that and only delivers 5.09 volts at 1.276A.
Regarding charging, I was hopeful that it would really charge at 2A but looks like it’s only 1.426A.
My summary is that it was a good price for $9 but I’m disappointed that it doesn’t have a high amperage output like the specs said and does not quick charge my Note 9 even though my phone is compatible with other QC 3.0 devices around the house.
Now the big question is, is it really 12,000mAh? That could take a long time to test as I would need to deplete it completely to determine how much it stored in that battery. If I get enough comments to do that test, I’ll do it but I’m not looking forward to it unless others would find value in the time it would take me.
@raccoon81 I have tested many of these batteries and many 120V to 5V chargers and car chargers. I must say that this particular device is way off from it’s specs.
Claim: QC 3.09V-12V at 1.5A.
Actual: 1A is okay, more is huge voltage drop so does not meet spec.
Claim: QC3.0 port: 4.6V - 6.5V at 3A.
Actual: QC3.0 port: 5V/1A = ok, 5V/2A = sketchy, 5V/2.5A = No way, 5V/3A = did not test due to complete fail.
Claim: Micro Input 5V/2A.
Actual: 5.10V/1.426A. Better than most batteries but not as good as specs.
QC port works as expected. Can send data to tell the battery what voltage to use and it does respond properly. I don’t know why my Note 9 is not sending the appropriate data to increase the voltage for charging. The Samsung 120V to USB that came with it does initiate the fast charge. I may do some more research on this – perhaps the Note 9 is not QC3.0 compatible like I thought it was. My first initial thought is the Note 9 is using QC2.0 and the battery is not downward compatible. I did not test it’s QC 2.0 capabilities because there was no claim it was downward compatible but I may do that test later too.
@raccoon81 I just checked the QC 2.0 capabilities and it works fine.
So interestingly, I plugged in my note 9 again into the QC 3.0 port and it did initiate the quick charge at 9 volts. I’m positive I put it in the correct Port the first time because you can see it’s in the center port in the photo above. I don’t know why it just suddenly started to work But it’s fine now.
@cengland0 would be slightly interested in knowing the full capacity. Mine arrived at 84% and I charged it to 100% before using it. I was able to charge my 1st gen pixel from 51 -100% and my 1st gen pixel xl from 65 - 100% and the backup had 17% remaining. That seems a bit skimpy to me.
@jaybird I’m in the process of testing the battery now. I estimate it will take around 10 hours to complete and I’m on hour #3 right now.
Things I learned so far: The charge indicator doesn’t appear to be linear. After 1 hour of discharging at a constant current of 1A, the battery still showed 100% charge. Then at the 2nd hour with the same constant current discharge, the display shows 97%. Right at the 3rd hour, it shows 79%.
So far, after 3 hours, it has drawn 2.97Ah at around 4.92 volts. It’s more accurate to say 14.62Wh because the voltages can rise and fall during this experiment.
Regarding it showing 100% charge for an hour, charging it last night did something similar. It was around 81% charged and jumped to 99% pretty fast. It was on 99% for about 2 hours before it registered 100%.
Don’t be too surprised that it almost goes up exactly 1,000 mAh for each hour. That’s expected when you have a constant 1A drain for an hour.
The final mAh is 8,400 and 41.31Wh. Since the nominal voltage of a lipo battery is 3.7V, then 41.31 / 3.7 = 11,165 mAh. You need to do that conversion because the battery voltage is less than the USB output voltage and we are looking for the battery capacity and not the 5V output capacity. This is why it’s sort of bogus to rate batteries like this in mAh instead of mWh.
At a calculated 11,165 mAh I would say the battery is definitely 12,000 mAh as advertised because there’s always loss in the boost circuitry.
As a double check, I charged it all the way and it consumed 11,598 mAh during the charge cycle from a completely dead unit.
@BuffBillsFan yeah. mine had one too. Those are pretty common on electronics these days…My bigger complaint was the use of adhesive instead of the normal ‘cling’ style tag. It left a sticky residue I had to take off…Pooh!
@a5meiser yeah… mine was cancelled as well. I ordered as soon as it opened back up at 11, so not sure there is any rhyme or reason to who missed out. Given the mixed reviews, I suppose the most appropriate response is… “meh”
@a5meiser Yeah, I hit order the second it opened up at 11am and got cancelled. I had no need to hit the 4pm slot since I thought I had one. All in all it was pretty lame to get the cancelled notice a week later along with a $5 credit for… apparel. Gee, thanks.
[Weird, the forum let me initiate a reply to a post above, but would not allow text entry in the resulting box… latest 6th gen iPad 9.7, fully updated iOS 12]
My nowhere near thorough testing so far hints these battery banks are somewhat wonky.
Mine don’t perform similarly to each other.
Both arrived at similar charge statuses per their own displays at 81% & 85%.
However, while one charged up predictably, with the display stepping up (non-linearly) to 100% as it charged, and in a reasonable timeframe…
The other one sat “charging” at “81%” for hours. Unplugged it and replugged it in… and several hours later came up to “100%”. Not confidence-inspiring consistency.
Topped off the charge on an iPhone (started at 77%) and iPad (started at 62%), individually using the battery banks.
The wonky “81%” bank never dropped from an indicated “100%” after topping off the iphone. The more predicable bank dropped to 55% after topping off the iPad. I realize the battery sizes of the iPhone and iPad are very different, but neither indicated “after” capacity (100% & 55%) makes much sense.
Will continue “testing”… good thing it’s only a $9 battery.
@RedOak I had a similar experience with the display. It’s not trustworthy to rely on that display to be accurate. However, my testing did reveal that it’s more than likely to be 12,000 mAh battery inside.
If you look at my post above, you can see how a constant 1A draw for 8 1/2 hours has inconsistent values on the display. For example, after 1 hour of discharge, it still showed 100% but that shouldn’t be since I know I took 1,000 mAh out. Then it dropped to 97% after two hours which is only a 3% depletion. Suddenly after another hour it dropped to 79% which is an 18% difference in one hour.
All-in-all, I’m glad to have purchased it. It’s a good size battery for the money - just don’t trust the display.
@cengland0 yah, the $9 part brings some level of forgiveness, however, the inconsistent behavior between the two battery banks I have is not a good thing. It hints one might be defective.
And the poor case design is perhaps forgivable for a $9 battery Bank. It is unbalanced, with the battery in one end and (apparently, I have not opened it) the electronics In the other end. I realize that end to end design is common, but in this example, unbalanced/“inconsistent density” makes it feel cheap. Perhaps the electronics are not as compactly packaged as in Anker or RAVpower battery banks.
… and swapped over to the “regular” USB port on the battery bank, 4.91 volts/ 2.03 amps.
Seems to hint the QC 3.0 chip does a better job of managing both the voltage and current. Also odd the “regular” USB port current was beat out by the QC 3.0 port in that I don’t think the iPad knows what “QC 3.0” is, does it?
@RedOak nice testing but the QC 3.0 port should have an output of 3A and the regular port is 2.4A. Yours under delivered just like mine did. However, it will only deliver as much current as your device consumes. It could have been the iPad not requesting the full power of the port.
I tested mine with a digital load to make sure it will try to consume the spec values and the battery couldnt output what it claims so we know it’s likely not a problem with the iPad.
It’s still the best battery I own and the only one with a QC 3.0 port. For $9, its a huge win. Wish I could buy more.
USPS okay-prickly-oven, Delivered, In/At Mailbox 04/09/2019 4:44pm CITY ST ZFIVE Reply STOP to cancel
It works, but the capacity gauge has never reached 100. It was ~85 out of the box. I’ll have to try again, but I don’t think the unit can charge devices while the unit is being recharged. I like the non-slip coating.
/giphy I like it
Am I the only person who is having problems charging these? I’ve got them both plugged in, one to my laptop and one to a plug. The laptop one came charged at 90 and is actually losing power, down to 88. The other one came at 78 and hasn’t budged in two hours. I has a sad.