Develop Bugs

Vau.lt Red Powerbag Backpack With A 3K mAh Battery

I think that this is a great idea, I'm hoping to order one in the next month or two
Saves having to carry around a power pack as it is the power pack
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http://www.androidpolice.com/2013/06/17/deal-alert-vau-lt-offering-red-powerbag-backpack-with-a-3k-mah-battery-for-only-14/

$74 for a 3000mAh power pack?
Buy your own for much less, and stick it in any old backpack.
I use a power pack with four 3400mAh cells in it, giving a total of 13600mAh, $45 from Fasttech.

Pantaloonie said:
$74 for a 3000mAh power pack?
Buy your own for much less, and stick it in any old backpack.
I use a power pack with four 3400mAh cells in it, giving a total of 13600mAh, $45 from Fasttech.
Click to expand...
Click to collapse
Clearly you didn't click the link at bottom of OP post (too late now anyway). It was being sold on Vau.lt for $39 (which puts it within somewhat competitive territory), and if you used Android Police's referral, you got a $25 credit, bringing the cost down to $14, with no shipping and handling. I snagged one just for the heck of it.

Indeed I didn't.
That sounds like a pretty good deal for what you get.

Even with the low cost, I dont see the benefit of buying this over an actual portable battery pack?
My Astro Slim 2 is 4500mAh, cost $29, has a built in cable, and can slip into even my skinny jeans (Levi's, for reference) with my phone at the same time.
Or I can just throw it in my bag with my phone.
Plus that bag is hideous...
Just my opinion.

Am I calculating this right? 25600mAh Power bank Capacity test

Hi,
I have recently bought a Li-Polymer power bank which has a rated capacity of 25600 mAh @ 3.7V or 94720mWh. Now, I have been testing this power bank using a 1A and 2A load. Here are the readings I got whilst charging and discharging the power bank.:
Here's the readings:
Charge: 24897mAh
Discharge: 16985mAh @ 2a discharge
Charge: 24814mAh
Discharge: 15020mAh @ 2a discharge
Charge: 24787mAh
Discharge= 16759 @ 1a discharge
Charge: 24750mAh
Discharge = Yet to do
Lets take example 1 from the list above:
Charge
24897 x 5 = 124485mWh
There was a conversion from 5V input to 3.7 output, with an efficiency of 80%
124485 x 0.8 = 99588mWh
So 99588mWh or 26915mAh @ 3.7V should be the power bank capacity
Discharge using 2A load
16985 x 5 = 84925mWh
84925 is the capacity after efficiency loss (20%) from the circuit. So power output before conversion and loss will be:
84925 x 1.2 = 101910mWh
101910 or 27543 @3.7V
So the power bank's capacity in the above example is around 27000mAh. Just wanted to make sure that my calculations were ok.
All readings are at 5V. The powerbank was charged at 2A and discharged at 2A or 1A USB resistor load.
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and this was used to record mAh

anyone?

[Review] Parkman E2 pluggable power bank for under 10$

Hey,
some days ago Parkman sent me one of their E2 powerbanks for review so here it is now.
Let me first clarify that I am neither paid by them nor related to them in any other way.
Let's start :highfive:
Content:
The powerbank ships in a small box with all information printed onto it. Also it comes with a micro USB cable to charge it. There's no wall charger included but charging it over USB is totally sufficient. Despite the cable and the powerbank there are some warranty cards and instructions in the box as well.
Powerbank itself
The big advantage of this powerbank is that it is really small and has a built in output plug
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It has 2200 mAH and I was able to charge my Blackview Alife P1 Pro smartphone (3000 mAH battery) to 64%. There are four LEDs on the powerbank which indicate how much juice is left - very handy! You can see them in the top of the image.
The only problem I had was that I could not really charge it in my pocket because the phone's USB slot is not centered but on the top left side. You can also see this in the image above. This makes the powerbank stand out a bit. On another phone I where the slot is centered it was completely fine though (see: http://imgur.com/qAWl96v.jpg) So definitely check the location of your USB slot before buying this powerbank
Conclusion:
Would I recommend this powerbank? The answer is "it depends". On the one hand it is really really handy and very portable. On the other hand 2200 mAH are nothing special nowadays. If you need to extend your phone's battery for one day go for it! If you want to go on a road trip over several days the capacity is definitely too low. I for myself use it every now and then when I am in town and my phone's battery is about to die.
Link: amzn.to/29Jnarx

anker wall charger stopped phone from charging

today i bought anker wall charger PowerPort+1 wall charger when i plugged it to my phone the phone show a warning that this charger is not compatible and a message shows that my phone stopped charging at that time , so now the phone is not charging with any thing not pc not my aukey power bank , whats wrong ? its model is A2013 .
any suggestion?
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Can you try with original charger? does that work?
Your photo shows model A2010 BTW, you mentioned A2013? not sure if there is a difference but the physical charger certainly has A2010 stamped on it ..

stretchnz said:
Can you try with original charger? does that work?
Your photo shows model A2010 BTW, you mentioned A2013? not sure if there is a difference but the physical charger certainly has A2010 stamped on it ..
Click to expand...
Click to collapse
My model is a2013 stamoed on the wall charger
Today morning i plugged the power bank and original charger they were charging but phone shows warning message that its slow charge.
Now i will try elemental kernel if such thing change.
EDIT : changing kernel also didnt help

hmmm that does not sound good!
Any chance Anker stand by their product in case it has damaged your phone somehow?

stretchnz said:
hmmm that does not sound good!
Any chance Anker stand by their product in case it has damaged your phone somehow?
Click to expand...
Click to collapse
its damaged it , now i can just charge it when its powered off beside this its slow charge also .

Wow, that is seriously bad, good luck with whatever route you take in claiming / repair!

Portable Aukey Battery not working with Axon 7 anymore

Hello all,
I bought an external portable Aukey battery that was working fine until I don't know what happened...
This is the model I'm talking about:
https://www.amazon.fr/gp/product/B01HRA0R9E/ref=oh_aui_search_detailpage?ie=UTF8&psc=1
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When I plug it to my phone, it starts to charge, and then stops. I have 3 identical devices, and they all do the same thing. I have changed the USB cable, same story.
If I plug my phone to another QC3 charger, portable or electrical, it works. But not with this device.
It used to work some weeks ago, and then I upgraded the firmware from B03 to B08. I haven't used them since.
Anyone noticed something like that? No problem with external chargers?
Thanx for your thoughts

Funny.
I've ordered that portable charger but i had to send it back because it wasn't working just like yours.
The charger works for 5 seconds and them it stops working.
Tested 3 different cables - got the same result.
My phone has B08 firmware.
Using the Aukey charger with another phone that doesn't have quick charge, it works OK.
I have another older portable charger (doesn't have quick charge) and it works fine with the Axon 7.
I've ordered another portable battery with quick charge 3 from another manufacturer.
I'll post my results here when i receive it.
Thanks.

Maybe this quick charge issue will be solved in Nougat firmware...

I'm sorry for the late response but only today i received a new power bank, after 2 different orders.
I've bought a BlitzWolf BW-P4 and this power bank works great!
Fast charging works as advertised and has a small profile with 5200mAh.
You can find this power bank here:
http://www.blitzwolf.com/Qualcomm-Certified-BlitzWolf-BW-P4-5200mAh-Quick-Charge-3.0-Power-Bank-p-136.html
I'm very pleased with this one.