[Q] pogo pin question - Nexus 7 Q&A, Help & Troubleshooting

I was wondering if there is a simple way that I can charge my nexus 7 through the pogo pins so I can use USB OTG while the device is charging. I don't want to buy the dock because of its bulk. Is there any way I can charge the device with a home made pogo pin charger?
Thanks

Related

USB Charging Cable

I've unlocked and rooted my Nexus mainly to use extra storage.
Can I use a standard USB cable plugged into the OTG cable for charging with the wall charger?
Also with the extra power the charger gives out will it be safe to use for charging my Kindle?
Thanks
jonchill said:
I've unlocked and rooted my Nexus mainly to use extra storage.
Can I use a standard USB cable plugged into the OTG cable for charging with the wall charger?
Also with the extra power the charger gives out will it be safe to use for charging my Kindle?
Thanks
Click to expand...
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You should be okay using the 2.0 USB with the OTG charger... There quite consistent. And It would also be the same on your kindle. If anything it may charge quicker. But if your not entirely sure ? Google it.
I've interchangeably used the Kindle Fire charger and OEM n7 charger without any issues. I like the KF charger better because it comes with a much longer cable.
Sent from my Nexus 7
Only problem I have seen is the ones with asymmetrical housings from Samsung don't fit well in N7, but you probably could make it work.

[Q] Concurrent Pogo plug charging/OTG USB usage under Android 4.3?

A Nexus 10 with Android 4.2.2 cannot be concurrently charged with a pogo plug while using a USB OTG connected accessory. Has this deficiency been fixed with the Android 4.3 update?
I wonder if this isn't so much a deficiency as a way to protect people from frying the tablet by charging through pogo and usb at the same time. So by default they disable usb while pogo's charging.
Sent from my Nexus 10 using XDA Premium HD app
lynnux said:
I wonder if this isn't so much a deficiency as a way to protect people from frying the tablet by charging through pogo and usb at the same time. So by default they disable usb while pogo's charging.
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Well for the Nexus 7 (original model) there is a custom kernel that enables what I am asking about. Also from what I read it seemed like a deficiancy as the code is there to stop concurrent charging from both the pogo connector and USB but unfortunitely it is cutting off pogo charging even when a OTG USB device is drawing power and not charging what so ever. The notification charge indicator displays as if the device is charging but that is false. An OTG cable has more pins (5?) than a USB charging cable (3?) so it seems a solution should be possible.
I'm no expert and am only going by what I've read but it makes sense to me that when the microUSB port it not charging that the pogo connector should be able to. Personally I think the pogo connector has been abandoned and will not likely be included in the Nexus 10 refresh unless Android 5 (Keylime Pie) addresses this issue. Assuming, of course, it has not been addressed with Android 4.3.

[Q] Charge nexus 7 with dock?

Hello i want to know how long does the dock takes to charge the nexus 7. What %/hour does it take? i am having trouble charging my nexus7 because i think the micro usb port has become loose and the power cable wiggle a bit when plugged. I want to build a custom dock just to charge the nexus 7 via pogo pins. Apart from slow charging there is no other problem...I tried different ROMS and removed all apps to test if any app were eating juice more than expected

Nexus 7 (2012) dock charging performance

Hello everyone, After few failing attempts to make my own OTG Y cable for car mounting & couldn't find it anywhere down here (Egypt), I thought about changing the concept.... I'm thinking about using the pogo pins to charge the tablet & here is where my questions come:
- Are the pogo pins reliable & capable of charging the tablet as an alternative of usb charging?
- Does it take more time to charge rather than the usb cable?
Thanks in advance
USB is better
Adham L. Alfy said:
Hello everyone, After few failing attempts to make my own OTG Y cable for car mounting & couldn't find it anywhere down here (Egypt), I thought about changing the concept.... I'm thinking about using the pogo pins to charge the tablet & here is where my questions come:
- Are the pogo pins reliable & capable of charging the tablet as an alternative of usb charging?
- Does it take more time to charge rather than the usb cable?
Thanks in advance
Click to expand...
Click to collapse
as far as I know. USB is faster.
nijom said:
as far as I know. USB is faster.
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Click to collapse
USB is faster. I build in a dock drop for my car and while its cool, the charge connection pins are highly variable due to the fit and finish of the crafting I was able to achieve on the dock itself.
The warp and shrink with hot and cold is pretty much outside tolerance +90F and +40F. While I can get it to fit, at higher temps the connection is lose. This results in static and hiss as the connection wobbles back and forth. Im in Texas and not as hot as egypt is my guess.

Nexus 7 wiring??

Hello all,
First thread here and hoping you guys and girls with more experience can help.
Basically I am fitting my nexus 7 2012 in my car but its got the common charging problem where my battery drains faster than I can charge it.
I have ordered a new USB port strip as I've read that can fix it and fingers crossed with that.
My problem/requirement:
1. I want to charge the tablet via the usb port using a hardwired 5V 2A device this will be plugged into a otg y splitter which is then plugged into the tablet.
2. The USB A side of the splitter I want to connect to my cars ECU (it has a USB port) so I can read the data on that (basically a very expensive memory stick)
I wanted to confirm that this would work and id be able to read data at the same time as charging it.
I also wanted to double check I'm not somehow going to send my 5v 2a power down into my ECU and set it on fire
On a side note, if my new USB port replacement doesn't solve the issue of charging the tablet i will have to remove the battery and hardwire it in, will i still be ok with using the USB port for the ecu while charging hardwired with no battery?
Kind Regards
Tim
Getting any USB 2.0 device to take current while hosting is tricky.
Usually it involves talking directly to the PMIC (power management IC).
If it's a fixed installation, why not remove the battery?
It will avoid the grief of the battery swelling up, which is not too unusual for things plugged in all the time.
I've been using a Nexus 7 (2013) for a few years, but just charging on USB.
It started falling out of its nice holder.
That's when I realized that the battery was all puffed up making the back convex.
I cut off the battery cell itself on the metal tabs and soldered in wires to a 4 V 2 A supply.
I found out that the BMS is a bit balky, it refused to turn on.
So I connected it to USB to "charge" it for about 10 seconds.
Then I could turn it on (without the USB).
Ok, I could have bypassed the BMS entirely but that can be a whole 'nother can of worms too.

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