![[eBay Plus] Anker 737 Portable Power Bank 140W 24000mAh $111 Delivered @ Mobileciti eBay](https://files.ozbargain.com.au/n/44/844044.jpg?h=539b6351)
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Awesome price and a record low price on these Anker 737's Power Banks. Enjoy :)
[eBay Plus] Anker 737 Portable Power Bank 140W 24000mAh $111 Delivered @ Mobileciti eBay
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I Smell Pennies on 03/05/2024 - 10:32 ebay.com.au (5137 clicks)
Last edited 03/05/2024 - 10:33 by 1 other user
Last edited 03/05/2024 - 10:33 by 1 other user
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same same
This is unfortunately incorrect, I have got a confirmation from the seller that the picture indicated is the exactly product, however this Anker 737 is a GEN1 version.
I have checked the model.
Both are the same model: A1289011.You can also check the item description section on both sellers.
In the description, they have the same UPC: 194644098728.@rqz: Ok thanks rqz, when I searched on Anker website I did not find a Gen1 and Gen2 for Anker 737.
The more advanced version is Anker Prime.
So I wonder if the first seller's Gen2 description is misleading or if there are genuinely two generations of the same product?
Any idea?
@root: This link shows that Mobileciti sells the exact same model (A1289011):
https://www.ebay.com.au/p/15059784483I couldn't find any mention of a Gen1/Gen2 concept in the official documents.
When will they have a power brick powerful enough for a Tesla?
When China starts shipping them nuclear powered batteries… What could go wrong?
Apologies for the silly question - are we allowed to bring these safely onto the aeroplanes?
Yes. It's 86.4wh which is under 100wh as per regulation.
The angry eyes add some novelty value to this too!
I bought one for $145 recently for an overseas trip. It was well worth even for just that one trip. Used it almost daily to charge everything from headphones, phones to laptops. Used up 15 battery cycles in under 3 weeks. Lot of the places we stayed didn’t have power ports at convenient locations, so we ended up using the battery instead of plugging our devices in. It also doubled as a car charger, and came very handy when taking taxis/uber. Despite the size and weight, we didn’t find carrying it much of an issue as we always carried a small backpack, this battery pack is similar to carrying a 600ml water bottle.
The only downside is to get the most out of the large capacity you need to charge at 30W or higher. For example if you charge multiple devices or a single high power device at 45W or higher then you can easily get more than 80% of the advertised capacity, but if you charge a single device around 15W or lower then you can only get about 60~70%, at least that is what I experienced with my testing. Therefore if you are only after a power bank for a smartphones (with 20W or below) or smaller items like watches, headphones etc, then a 20,000mAh 30W power bank may perform better.
Thanks for the review.
Out of interest, what ports and voltages were you using when you got the 60% to 70% results?
And how were you recording the Wh? (Eg, using the built in Wh counting?)
I test power banks as part of my day job, so I am very curious about any user reports of under capacity in specific circumstances. These sort of things have helped me uncover specific scenarios that turn up varied result and help me improve my testing procedures!
I would love to try and replicate your results.
The 737 runs 21.6V internally, and is most efficient at 20V output, and less efficient at voltages further from 21.6V. (DC DC voltage conversion is more efficient the smaller the change in voltage). But in my testing it's only a small impact - a few percentage efficiency change at most.
Efficiency will peak at some percentage of max load, but it's not a huge difference. Higher wattages give lightly reduced usable capacity from the cells, but again it is a minor difference.
In my testing, USB-A ports tend to have noticeably higher resistance than USB-C, so there is more power lost as heat. Many under spec cables can also reduce capacity.
I wrote up some of my testing results for a TechRadar review I did.
I don't include every result for brevity, but as an example, the 5V 2A (10W) test in the review is via USB-C.
I get 85.88% of the rated capacity. From the USB-A port, this drops to 81.5%. That's the lowest I got in testing, which makes me curious if I missed a specific scenario and if I can replicate your results!
Shit I paid $134 a few days ago off eBay
Mine arrived dead (0 charge) and am charging it now. Is that normal? My last power bank was full when it arrived. Also charging it is slow. I'm using a 33W charger from my phone with its charging cable and the Anker is only drawing 6.5W. It's going to take 12 or so hours.
Not sure about being 0% charge on arrival. But for the charging, you'll need a 65W charger to reduce charging times down to a few hours for a full charge. I use the Anker Nano ii .
It's not ideal, and could indicate the power bank has been sitting around for ages before being sold. Or that there is a self discharge issue.
The 6.5W charge speed could have many causes. I suspect the power bank will purposefully do a slow charge to start, after being at 0% for a long period. It should increase after time, or on the next charge. Or it could be a cable issue or miscommunication from the power bank to the charger. I'd let it fully charge and then see.
It is best for power banks not to be left fully depleted (or fully charged) for extended period. There may be no appreciable impact to the power bank longevity or usable capacity in your, but thankfully the Anker 737 has inbuilt Wh tracking which makes it easy.
Did it finish the full charge?
After powering it on, a second click of the power button takes you to a screen that shows information including total input Wh, and total output Wh and other stats, such as battery health.
Battery health should be at 100%.
What is the total input Wh value?
Record each value. Then use the power bank as normal to charge devices. Use it (which charging it) until it runs all the way down to zero.
Check and record the output Wh and compare to the previous number. It should have increased by about 75Wh. (post the number here)
Charge it up again. Ideally using the Anker cable (which is what you were doing, is my understanding is correct). How fast does it charge?
Once full, check the input Wh and compare to your previous result. It should have increased by something between 80Wh to 95Wh.
After charging it and checking it 12 hours later is shows 100% battery health and 86 wh input. I'll have to try the rest later. I used the USB cable from my phone charger (which is USB type A and 33W)
Sounds like it charged correctly - just slow.
With the charge rate, the Anker 737 needs USB PD spec on the input. to charge. Generally speaking USB-A ports don't support PD spec.
In which case, the Anker 737 will use 5V, and may default to 1.5A max. So 7.5W from the charger, which after cable and connection losses, would give about 6.5W on the 737 display.
Getting the full 33W charge rate depends on the charger. EG, if it is an Anker 323, then if you plug in to charge using the Anker USB-C to USB-C cable then you should the full charge rate. But if you used the Anker 323 USB-A port, then it can do 30W QC spec, but the Anker 737 power bank can't use QC spec for input so will use 5V.
Or for example if you have an Oppo 33W charger, then it uses Supervooc, and the Anker 737 can't use that as in input, so will default to 5V.
Pretty much unless you have a charger that does customised PD spec over USB-A (very rare) then if you need it to charge faster than 10W, you need a USB-C PD spec charger and a quality USB-C cable.
One other thing - when you have run the 737 back down to 0%, then its total output should have increased by about 85Wh. (I said 75Wh before, but when I checked my testing notes I realised I was confusing the Wh measured after the voltage conversion, whereas the Anker 737 measures Wh from the cells before the voltage conversion. In my notes I get about 85Wh added to the total output value each time I run it down.)
Mine was also DOA. Charging was slow until I plugged in a 100W PD charger.
Mine just arrived with 0%.
Charged it up with my Anker 737 GanPrime.
Took a bit over an hour at about 85W. Can't imagine how much damage I just did to the cells lol
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Is this powerbank from previous deal also the same? Not sure why it mentions Gen2.
https://www.ebay.com.au/itm/256040118369?mkcid=16&mkevt=1&mk…
I ordered it for $148 and now planning to return it to get the same in $111, but hoping the two are same.