Database Develop

USB Wall Plug

Thinkgeek recently reviewed a replacement wall plug that can supply up to 2.1 amps over a USB port.
Seems like a perfect fit for where you charge your nook color!
http://www.thinkgeek.com/gadgets/travelpower/e81a/?pfm=Search&t=U-Socket USB Wallplug

In a similar vein, ThinkGeek also has this, which lets you draw USB power from an outlet that has something else plugged into it. Up to 1 amp.
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flu13 said:
In a similar vein, ThinkGeek also has this, which lets you draw USB power from an outlet that has something else plugged into it. Up to 1 amp.
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I'm wary of the 1 amp output, though that looks useful for when you're on the go or travelling.
The 2.1 amp permenant household solution means I can create a charging dock in my office with very little fuss.

http://fastmac.com/usocket.php
I got one of these for my birthday this January. Really works but I still think the NC charges faster directly from their dedicated wall plug.

Yes, I'm not sure why but some people get 2 amp usb chargers that charge their nook at the same time as the stock charger.
However, my experience has been not the case.
The cable itself is known to be important, but the charger also has something about it that's unique or made differently to allow full 2 amp charging.
There are usb inter-connects that people sell that allow charging from lower amp chargers, I'm wondering if this bypasses whatever check that keeps the nook from charging at 2amps on a nonstock charger.

[Battery] Chromo Inc Backup Battery 3600mAH

Looks like there is another option out in the market for adding battery to the Note 2. I currently have the Anker 6400mAH extended Battery. However this does pose a good alternative since it adds less in theback and just a tad bit more in the bottom.
Backup Battery
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Has anybody purchased or tried out? I'm curious to hear what people think. I may get it as a test dummy and report back.

Don't have experience with such case batteries, but I have spoken to someone who has. This particular type you mentioned above is very common on Amazon/ebay in 3200/3600/4000 flavors. It makes phone longer because of the bulk at the bottom and you can't access S-pen anymore - a big negative. There is an alternative someone got from ebay - 3200 mAh version: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=350655154588&ssPageName=ADME:X:RTQ:US:1123
It doesn't make the case longer and keeps the bottom open to access s-pen. The down side of this particular case and other battery flip cases is an average of 500mA Input which makes them charge up very slowly, and the same 500mA-700mA Output which charges the phone slowly as well. Also keep in mind output mAh is rated for 5V output while our battery is 3.7V which means down conversion eats into efficiency of the output thus output capacity will be lower.

Hmmmm didn't consider s pen access. Good point. That other option is interesting. I wonder how it affects NFC.
Sent from my Note II

Broken Tablet Battery Pack

Hi everyone, I have a Raspberry Pi Model B+, I'm very new to Raspberry Pi and learning as i go along,
I have a broken Tablet lying around, most parts in it will probably be too advanced for me to deal with right now,(like a 8.9 inch 1080p samsung panel) or possibly not even worth it
anyways, one thing that is interesting is the battery pack that's in it
it is not very old, and got 2 of them in it,
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I read around and know that generally I would need a regulator to prevent overly powering the pi, but havn't seen a tutorial with something like this
Does anyone know what this is? i put the code on google and i find nothing.
or any suggestions would be greatly appreciated
thanks

Like other batteries
If you open any battery of an old phone, you can see those chips, so I suppose they are to control the amperage and the voltage provided by the battery, and also to control the charge.
Take a look to all that numbers and take note of the followed by V and mA. To fit well with the raspberry i suppose, V must be around 5, which is the voltage recommended for the pi chargers. For a bigger mA, the battery will give you more time of use.
These are all suppositions. I'd try to connect it. I don't think you can transform your pi on a brick by doing that...

This isn't worth doing. As commendable as it is to re-use old parts, a $10 cellphone booster from ebay can power a pi for a few hours per charge and is basically plug-and-play, with charging and regulator circuitry built-in.

Agreed with @Chris J.
Lithium Ion's are dangerous unless you know what you are doing.
You need to have a proper charger for it (ni-cd or ni-mh chargers will not do; they have a consistent voltage output until they are just about dead, compared to li-ions, which have a mostly linear discharge cycle from 4.2V until they reach around 3.6V).

(Review) Multiple Tronsmart Wall Chargers w/ QC 2.0 and QC 3.0

A while back when I got the LG v10, Tronsmart reached out to me and asked if I’d review one of their wall chargers in exchange for an honest amazon review, I agreed, and the charger impressed me so much I bought some others, and now I have the 2 port QC 2.0, the one port QC 2.0, the one port QC 3.0, and the Titan 5 port QC 2.0.
I saw they posted a charging analysis on their site for the s7 and based on my tests, it’s pretty spot on, though I am not going to sit and watch my phone charge for an hour and a half.) One thing I can also say is that they power my aftermarket wireless charges as well, which the factory Samsung one does not.
Just figured I offer op some affordable suggestions for wall chargers even though the hype is on wireless w/ the s7. When I come home from work and need a quick boost before going out for the night, wireless isn’t fast enough.
I have the titan on my night stand and it powers my yootech wireless charger, my tablet, my bluetooth headphones, and my moto 360 sport charger,still leaving me one for toping off the s7 in a hurry. It's a beast.
Here is the Tronsmart analysis, and the pictures below will represent mine.
http://www.tronsmart.com/samsung-galaxy-s7-charging-analysis
My output pics
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Question Can i charge it with laptop charger?

Can i charge my mi 11 ultra using my 65w lenovo laptop charger?
Is it safe?
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Okay but what is the port type for that charger?

Should be same of the phone and make sure then voltage isnt higher lest you short your port or worse your board.

I checked if it can be charged with the 65W Xiaomi laptop charger , but it didn't charge at turbo speed sadly.

The phone is "smart" enough to not draw more power than it can handle, even if you plugged in a 120w charger , it would only draw 67w max
But it can handle 67w anyway so 65w shouldn't be an issue

It charges fine on my 120w Xiaomi charger and shows as mi Turbo charge.

Kenora_I said:
Should be same of the phone and make sure then voltage isnt higher lest you short your port or worse your board.
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Same type c, i dont have much knowledge about voltage.

Yeah use it. Shouldnt take anything more. Your phone is smart enough to know.

aakashasaj said:
Can i charge my mi 11 ultra using my 65w lenovo laptop charger?
Is it safe?
View attachment 5375899
Click to expand...
Click to collapse
Any USB charger can be used.