Induction Charging N7 - Nexus 7 Q&A, Help & Troubleshooting

I was hoping to start a little project on my N7. I love induction charging and want to set it up on my nexus 7. I was wondering if anyone who has gone through this/know about it/enjoy posting could give me some advice,
Most specifically:
Best dock+backcover combo
Thinnest coil plus chip
Fastest charging
Thanks in advance everybody, can't wait to hear your 2 cents!!
Sent from my Nexus 7 using xda app-developers app

I haven't actually seen anybody fully implement inductive charging yet. However, this guy started doing inductive charging:
https://plus.google.com/u/0/101739011161245720271/posts/fAse7vGmc3q

Well, one easy way of doing it would be to buy a Qi standard inductive charger and a Qi standard inductive charging case (for example, the Palm Pre Touchstone case) and then pull the internals out of the donor case and fit them inside a Nexus 7 case. There's a small amount of soldering required and perhaps some fiddling with the fit, but the components are relatively simple and lay relatively flat. It wouldn't be too hard at all.
Unfortunately, I believe most current Qi charging solutions are relatively low amperage. This would make for a pretty slow charge on the power hungry Nexus 7. Not too bad it you're using it as an overnight charger, but nowhere near as fast as a 2 amp charger. It's possible that you'll find an inductive charger with a higher current output but if you're looking for that it might be easier to build one from scratch,

I did the Touchstone mod on my GNex. It only puts out .56 Amps. Their are kernels with "quick charge" that would let it ramp up to 1 amp but that was it. I am wanting to play with it too, but I'm more thinking of making a dock with POGO pins instead.
I gotta say, they touchstone is great for my GNex. I have a touchstone mounted in my car, so it holds it in place & charges. Occasionally the charge connection gets interrupted (hit a bump, etc...) and it takes 10 seconds to restart. I added additional stronger magnets to my case, but still I don't think the touchstone magnets would do very well holding a tablet instead.
Also, additional magnets screw with your compass...

the touchstone also has a strange angle for watching movies on the tablet.
also i dont know if you can make the induction work with 2amps like the asus charger. (which would be awsome for superfast charging)

If you used the pogo pins for this it would disable the audio if using the correct kernel (see my post in accessories). You would have to modify the kernel to disable it stopping speaker audio out (should be just commenting a few lines though).

dandu5 said:
the touchstone also has a strange angle for watching movies on the tablet.
Click to expand...
Click to collapse
The Touchstone is adjustable to whatever angle you want.

Related

More Power!

Bought one of these guys to hardwire a charger in my car:
http://www.mountguys.com/product_p/mfx5v-b-micro.htm
On the charger is specifies 5V 1500mA output. Is that ok? I know it's more than stock, but I thought circuitry can step it down if needed.
Also, I'm thinking I want to hardwire to the always hot lead that goes to the radio memory function. Any chance of current problems? Don't think it will drain my battery if I leave it charging while shopping (or at the bar)
Thanks.
I'm curious why you chose to hardwire it, when the device can only pull 700mA, and these little wonders work perfectly.
Nice! Got one of these also... twice the ports and 5X the price:
http://www.amazon.com/Griffin-Powerjolt-Dual-Universal-Micro/dp/B0042B9U8Q/ref=pd_cp_e_2
Yours and mine above specify 1A... this one:
http://www.amazon.com/Charger-Samsu...96/ref=sr_1_15?ie=UTF8&qid=1318442293&sr=8-15
2.1 A.
I just wanted a cleaner look in a little sports car... the hardwire is going to come out the panel and go straight to a dock. But now I'm worried that 1500 mA could be troublesome?
It won't be troublesome, just useless.
I have a setup for my iPod that utilizes one of what I linked. I've got a USB+RCA-to-dock cable running into my center console, then into a port in there, to some empty space in front of it (under the trim, totally invisible) where my audio guys spliced a new line into the RCA jacks that came from the factory, and split off another power line. The charger's in there, cable connects to the ports... It's nice and clean.
this should be fine. the amperage rating on a charger just tells what it is capable of if requested. it is up to the phone itself to provide the requested amount of current. that is to say if this charger can provide 1500mA, but our phones can only use 750mA, your good. it is provided all the current it needs. now on the other hand, if you were charging some device that could use 2000mA(unheard of) this charger would provide all it could, the device would just charge slower.
the voltage is fine. most chargers are rated at 5v, and should be spot on as long as it is a decent brand from a trusted source. a knock off may be out of spec to what it is rated. that is where you could run in to trouble with frying a phone.
anyway, besides all that, this seems risky. not hardwiring a charger to your car, but leaving it there while you are shopping or in the bar. ever heard that an ounce of prevention is worth a pound of cure? id hate to come out of a bar to a broken window and no phone...
i never leave my phone unattended outside of my home.
austin420 said:
some device that could use 2000mA(unheard of)
Click to expand...
Click to collapse
iPad, TouchPad, Galaxy Tab 10.1...
Guess I'm a noob.. very detailed answer in FAQ.
http://forum.xda-developers.com/showthread.php?t=802711&highlight=voltage+amps+charger
Now to find out if those pins are shorted...

[Q] Modifiy Nexus 10 For Qi Wireless Charging?

In short, could we slap a Qi-compliant coil in our Nexus 10, wire it to the battery, and win?
The coil itself is pretty thin from what I've seen, and there is a bit of room in-between the battery and back plastic (the people with creaky and buckling cases should know about this).
I don't know if there's an actual control board that is needed, but perhaps the coil could be hooked either directly to the battery, or even through USB (that way you can be notified of charging). If a control board is needed, then this might be a bit harder than expected, unless the board itself is pretty thin too.
It looks like someone's managed to do something similar to a Nexus 7 already and had good results (even enters docking mode): http://forum.xda-developers.com/showthread.php?t=2070851
Edit: Instead of routing the coil to the USB or battery directly, we could even hook it to the Pogo pin area, like the person did for the N7 coil mod above.
I'm willing to give this a try, but may have to wait a few weeks till I can get the funds for a coil and for it to ship to me.
espionage724 said:
In short, could we slap a Qi-compliant coil in our Nexus 10, wire it to the battery, and win?
Click to expand...
Click to collapse
According to a-post-at-techchrunch-i-cant-link-to-cause-im-a-noob, the Nexus 10 has Qi already... is it wrong? I haven't opened my Nexus 10 to check
I have openned up my Nexus 10 and dont remember anything for wireless charging being there.
I saw someone mod the Galaxy nexus to enable this sort of thing and from what I remember you should be right Espionage, just as simply as you think. And yes there is room to do it.
xiq said:
According to a-post-at-techchrunch-i-cant-link-to-cause-im-a-noob, the Nexus 10 has Qi already... is it wrong? I haven't opened my Nexus 10 to check
Click to expand...
Click to collapse
I can find no reference to the device on the offical Qi website. This makes me highly skeptical that Qi is already present on the N10, perhaps they confused it with the N4?
Search for yourself if you'd like: http://www.wirelesspowerconsortium.com/products
As slow as the Nexus 10 already charges with it's stock USB cable... do you really WANT to charge it with Qi? :laugh:
You might have to charge it for a week from 0% to get to 100%
Any further developments?
Hey Guys!
Is there any further developments on this possibility? :fingers-crossed:
Why not just use a pogo cable.... you would have to plug in a charging pad anyway.
Nexus 10 Wireless Charging Solution
I know it's been some time but I'm kind of surprized nobody posted a solution yet. I just had a Nexus 10 open and noticed not for the 1st time the pogo pins at the bottom that Google never even put to use. I can't even find an aftermarket docking station for it. We aren't talking about Apple here. Anyways the closest I've seen is a magnetic pogo pin charging adapter cable probably sold mostly to people who broke their USB ports. It seems nobody picked up on sewermike's comment. They DO have pogo pins and with a wireless coil (2-4 chained together) you could wire them to the + and - of the pogo pin cable easily. Also if you have access to old Nexus 2nd gen back covers you can get them there or on eBay cheap. It might be slow like TheAltruistic says but if you have a wireless device charging coffee table which I'm seeing more and more you can just set it on that. If I have time I'll do video or at least post my results.
ive got the pogo cable, if you can buy it do so - its well worth it, i think i paid £15 and i totally stand by it.
as for wireless charging, you can get wireless charging receiver cards that plug into the micro usb port, with this you can either plug it in and bend the cable around the tablet and hide it inside the case or plug it in and have it hang outside, you just rest the card on the charger.
please remember that is isnt a perfect solution as the card will get hot and overheat and stop charging or you'll spend all day charging the tablet.
i use to wirelessly charge the nexus 10 but id rather stick the pogo in

[Q] Pogo - Cigarette Lighter Charger

I can't seem to find the answer I'm looking for anywhere so here it goes..
I am mounting a Nexus 7 in my car with a bluetooth head unit to get sound through my speakers. If I make a dock containing pogo pins to charge the device, can I run those pins to my cigarette lighter so the N7 charges will the car is on? I have a 12v to 5v 3A converter on the way if needed. I really don't want to fry my battery and have to start over.
Could this idea cause any problems? Thanks in advance.
I don't think the pogo pins will charge the device fast enough to keep up with the usage. So if you travel it will slowly deplete. It is a slow charge. People do this though.
You should also look into installing a wireless charger under your battery door so it charges through induction like the Nexus 4. There are videos that walk you through this. Usually they connect the wireless disc up to the pogo pins or to the battery contacts directly.
The N7 will shut off charging once the battery is full, so youd want the power always on through to the cable.
Food for thought. There are numerous threads here in the forums that show people doing this and their findings. I would do the induction charge though for ease of removal and hassle. You can pick up a touchstone charger and disc for probably $20 on eBay. There are specific models to look for and the details would have to be researched.
My buddy did his N7 and he said it was super easy. His only beef was the N7 was too heavy for the included magnets to really keep a secure connection and some people also purchased stronger magnets for under the battery door to fix this. They turned out so strong that the N7 would actually hang simply by the magnets so it kind of "snaps" in place.
Sent from my Nexus 7 using XDA Premium HD app

[Q] Pandora sleep

Just got my Nexus 10. Where is the Menu button?
I'm looking for the sleep timer in Pandora. I know I could access it under the Menu button in other device, but this Nexus 10 doesn't have the Menu button and not showing anything similar. I dig under settings but nothing there about SLEEP.
Background, I did all the updates and got KitKat. I don't know what they change/improve with KitKat but I'm not impress.
A few more questions...... should I dig to find the CPUID if worse come to worst should I need it? My A500 needed the CPUID to get access when it bite the dust. I hadn't root or anything yet, I did that with the A500 but seem nothing I do need root. I spent months looking through and trying to fix my A500. Nothing work. Can't flash any of the ROM, can't restore. All I got are Acer logo/dead android icon/attempting to read backup.zip rom from microSD. Seem like the memory is corrupted.
What accessories do you get for your Nexus 10? I got the adapter cable miniUSB to full size USB so I can plug in my flash drive. Sux Nexus don't have microSD.
What case do you like and why?
thanks.
PS: I did search and seem like none of you guys sleep listening to music.
Lots of view but nobody is replying... how come?
I can't believe this tablet take so long to charge from zero % to 100%. I've start charging it since 9am and now it's 4:12pm and only 97% charged. wow Using the AC charger that come with this tablet. Manual said the charger is 2A but the tiny text spec on the charger said 0.2A.
Well I can answer the charging. Buya pogo charger. Also for a case the moko slim is a good cheap case.
Sent from my Nexus 5 using xda app-developers app
abdel12345 said:
Well I can answer the charging. Buya pogo charger. Also for a case the moko slim is a good cheap case.
Sent from my Nexus 5 using xda app-developers app
Click to expand...
Click to collapse
thanks for the reply. I read it wrong... input is 100-240 with 0.35A. The output is 2A at 5V. That match with the owner manual. But wow that is a very long time to full charge. I think spec for USB is 3A max. I'll check out the moko case later. thanks.
battery charge time, usb.
workerantDroid said:
Lots of view but nobody is replying... how come?
I can't believe this tablet take so long to charge from zero % to 100%. I've start charging it since 9am and now it's 4:12pm and only 97% charged. wow Using the AC charger that come with this tablet. Manual said the charger is 2A but the tiny text spec on the charger said 0.2A.
Click to expand...
Click to collapse
USB is limited to 5V, the charger is putting out 2A, or 2000ma per hour so 9000Mah should = 4.5 hours, But:
max microusb can handle 1.8A, so it becomes 5 hours.
Power loss in charging (e.g. heat) is about 10%-20% (each battery is different) so becomes 5.5-6.25hr
Above 85%, to protect the battery from overheating and over-voltage, as part of battery longevity, it slowly moves into trickle charge. Compare how long it takes from say 60%-70% to 90%-100%, there is little to gain in waiting to go from 97% to 100%. Next time look after 6 hours it should have been 90%. See this chart.
You can overcome one of these limitations by use of Pogo cable which isn't limited by 1.8A of microUSB and can give 2A. Side-benefit is it is magnetically connecting so doesn't wear out your data socket microUSB with all the plugging in to get electricity. It will still trickle-charge but get you to 85% faster.
I confirmed today that the Pogo cable does not disable the microUSB socket i could use a USB harddrive (Stickmount) and use my 4G USB dongle (PPP-Widget, kernel replacement), whilst receiving power, but the 2Amp input is still not enough to charge and tax the N10 with power demands, it was slowly still discharging powering ~600mah USB harddrive plus full brightness display plus Wifi was >2A slightly.
workerantDroid said:
thanks for the reply. I read it wrong... input is 100-240 with 0.35A. The output is 2A at 5V. That match with the owner manual. But wow that is a very long time to full charge. I think spec for USB is 3A max. I'll check out the moko case later. thanks.
Click to expand...
Click to collapse
Also the menu button should pop up on the right side of the soft key bar in apps that need it. And if you want faster charging you can buy a pogo cable which charges faster but it costs 25 dollars. I would recommend just charging before going to sleep and remove it early in the morning. It takes about 5-6 hours to charge fully from a low battery like 10 percent so an extra hour shouldn't make a difference on the charger. I looked it up and it said that it's best not to leave it longer than 9 hours on charge but less than that should be fine and that was for a phone so im sure the tablet can stay longer without issues.
Sent from my Nexus 5 using xda app-developers app
workerantDroid said:
What accessories do you get for your Nexus 10? ....
Click to expand...
Click to collapse
So there is an accessories thread.....
So I've had a N7 for 17 month and a N4 for 11 month and N10 for 4 days. My experience has led me to focusing on energy input to balance the large output from the larger screen. Battery logs shows a lot more goes into the display than my N7. The power input is still only limited by microUSB plus you got the trickle-charge >85%.
So here's my list:
A dual 2.1A PSU, to get as much current as possible from the wall when I'm near a wall. The Samsung supplied one is 2Amp which is perfectly fine as the supplied MicroUSB cable is limited to 1.8A anyways, so the Pogo cable not having that limit is limited by the PSU so got a slightly higher Ampage one which can also charge something else concurrently. http://www.amazon.com/gp/product/B00BSC7FW0/ref=oh_details_o00_s00_i00?ie=UTF8&psc=1
A 2Amp-input slim battery, this is only 5000mah but there are larger. This one fits in my pocket slim like my N4 and N7 I got larger 7000mah and 12000mah USB batteries which only 1A input. http://www.amazon.com/gp/product/B00EK3UHS8/ref=oh_details_o04_s00_i01?ie=UTF8&psc=1
Pogo cable which is not limited by the 1.8A of the microUSB port, it complements the 2.1A PSU http://www.amazon.com/gp/product/B00B2166BS/ref=oh_details_o03_s00_i00?ie=UTF8&psc=1
Case with removable keyboard. " MoKo BlueTooth Wireless Keyboard Cover Case for Google Nexus 10" (10-inch) Tablet by SAMSUNG, BLACK " but doesn't seem sold any more, it is to go beyond the edges of the N10 itself to assist with a drop-test and comfortable props on my lap or on desk with/without keyboard. The Pogo cable also complements the case as its magnetically connected so if cable is pulled it will come away easier and no damage to the N10 microUSB socket.
workerantDroid said:
PS: I did search and seem like none of you guys sleep listening to music.
Click to expand...
Click to collapse
Hmmm, I do in hotels and other situations where noise is an issue sleep with noise-isolating headphones, a Buff to keep headphones in my ears and either a brown noise or pink noise depending what is the noise type in the hotel, works good when the guy in the floor above bangs his doors from 1am and the guy next door banging around from 5am. I'd typically NOT do that with a N10 but my N4 which I have anyways in Airplane mode to not be disturbed and with an alarm set so I wake when I want to not earlier.
I guess... you mean sleep with music coming through the N10's speakers? Well its rare I could do that, either wife or someone in next hotel room or I'm on a flight and need headphones which don't annoy the next seat so noise-isolating earbuds are what I use, nice to have the speakers.
I also have one of these http://www.amazon.com/Outdoor-OT6001-Bluetooth-Adapter-Devices/dp/B009A136T2 which allows me to not cable connected to gadget (phone, N7, N10, laptop, etc) and it lets me use regular headphones which only last for me 3-6 months and is cheaper over the long term than bluetooth headphones.
nigelhealy said:
So there is an accessories thread.....
So I've had a N7 for 17 month and a N4 for 11 month and N10 for 4 days. My experience has led me to focusing on energy input to balance the large output from the larger screen. Battery logs shows a lot more goes into the display than my N7. The power input is still only limited by microUSB plus you got the trickle-charge >85%.
So here's my list:
A dual 2.1A PSU, to get as much current as possible from the wall when I'm near a wall. The Samsung supplied one is 2Amp which is perfectly fine as the supplied MicroUSB cable is limited to 1.8A anyways, so the Pogo cable not having that limit is limited by the PSU so got a slightly higher Ampage one which can also charge something else concurrently. http://www.amazon.com/gp/product/B00BSC7FW0/ref=oh_details_o00_s00_i00?ie=UTF8&psc=1
A 2Amp-input slim battery, this is only 5000mah but there are larger. This one fits in my pocket slim like my N4 and N7 I got larger 7000mah and 12000mah USB batteries which only 1A input. http://www.amazon.com/gp/product/B00EK3UHS8/ref=oh_details_o04_s00_i01?ie=UTF8&psc=1
Pogo cable which is not limited by the 1.8A of the microUSB port, it complements the 2.1A PSU http://www.amazon.com/gp/product/B00B2166BS/ref=oh_details_o03_s00_i00?ie=UTF8&psc=1
Case with removable keyboard. " MoKo BlueTooth Wireless Keyboard Cover Case for Google Nexus 10" (10-inch) Tablet by SAMSUNG, BLACK " but doesn't seem sold any more, it is to go beyond the edges of the N10 itself to assist with a drop-test and comfortable props on my lap or on desk with/without keyboard. The Pogo cable also complements the case as its magnetically connected so if cable is pulled it will come away easier and no damage to the N10 microUSB socket.
Hmmm, I do in hotels and other situations where noise is an issue sleep with noise-isolating headphones, a Buff to keep headphones in my ears and either a brown noise or pink noise depending what is the noise type in the hotel, works good when the guy in the floor above bangs his doors from 1am and the guy next door banging around from 5am. I'd typically NOT do that with a N10 but my N4 which I have anyways in Airplane mode to not be disturbed and with an alarm set so I wake when I want to not earlier.
I guess... you mean sleep with music coming through the N10's speakers? Well its rare I could do that, either wife or someone in next hotel room or I'm on a flight and need headphones which don't annoy the next seat so noise-isolating earbuds are what I use, nice to have the speakers.
I also have one of these http://www.amazon.com/Outdoor-OT6001-Bluetooth-Adapter-Devices/dp/B009A136T2 which allows me to not cable connected to gadget (phone, N7, N10, laptop, etc) and it lets me use regular headphones which only last for me 3-6 months and is cheaper over the long term than bluetooth headphones.
Click to expand...
Click to collapse
thanks. I ordered that pogo cable. so expensive but no other choice.
I mean the sleep in Pandora. I want to set Pandora to turn off in about 30mins or so. but I can't find this menu to get to set sleep. any1 find this sleep?
workerantDroid said:
I mean the sleep in Pandora. I want to set Pandora to turn off in about 30mins or so. but I can't find this menu to get to set sleep. any1 find this sleep?
Click to expand...
Click to collapse
From the Pandora help page:
*Android tablets do not have the built-in sleep timer option.
http://help.pandora.com/customer/portal/articles/1022606
well just a generic timed app killer app?
sharksfan7 said:
From the Pandora help page:
*Android tablets do not have the built-in sleep timer option.
http://help.pandora.com/customer/portal/articles/1022606
Click to expand...
Click to collapse
What about killing the Pandora app after a given amount of time? Say this one (I not tried but it looks like a good candidate)
sharksfan7 said:
From the Pandora help page:
*Android tablets do not have the built-in sleep timer option.
http://help.pandora.com/customer/portal/articles/1022606
Click to expand...
Click to collapse
I never thought they would remove that specifically for tablet. never occur to me. thanks. at leat that confirm I'm not blind.

Qi charging problems

I ordered the official Samsung wireless cover from Amazon, slapped it on, and then put my Otterbox Commuter series over it - so far so good, everything fits reasonably well.
I go to put my S5 on a wireless charger and it charges. Then stops charging. Then starts charging again. Then stops again. Over and over it repeats this.
I get to thinking the phone is just too far away, so I take off the hardshell of the Otterbox Commuter. Same thing happens again. So I take off the soft shell - now I'm down to just the naked phone, and it's still charging on and off.
I'm using the blackberry folding blade wires, and the chargers found here: http://forum.xda-developers.com/goo...udget-wireless-charger-showdown-5-qi-t2676249
Specifically, the tilted charger and rectangle with LED lights. Both are giving me the exact same on & off problem.
So does anyone know how to fix this? Is it the chargers or something I'm doing? Are the chargers just not generating a strong enough field (if so, which charger can I get that will generate a better field?)
Thanks for any help
EDIT: Clarified that wireless cover is official Samsung
xmacro said:
I ordered the wireless cover from Amazon, slapped it on, and then put my Otterbox Commuter series over it - so far so good, everything fits reasonably well.
I go to put my S5 on a wireless charger and it charges. Then stops charging. Then starts charging again. Then stops again. Over and over it repeats this.
I get to thinking the phone is just too far away, so I take off the hardshell of the Otterbox Commuter. Same thing happens again. So I take off the soft shell - now I'm down to just the naked phone, and it's still charging on and off.
I'm using the blackberry folding blade wires, and the chargers found here: http://forum.xda-developers.com/goo...udget-wireless-charger-showdown-5-qi-t2676249
Specifically, the tilted charger and rectangle with LED lights. Both are giving me the exact same on & off problem.
So does anyone know how to fix this? Is it the chargers or something I'm doing? Are the chargers just not generating a strong enough field (if so, which charger can I get that will generate a better field?)
Thanks for any help
Click to expand...
Click to collapse
I had the same issue with a cheap receiver I bought off ebay. The receiver was junk. I took it out of the phone and dropped it on the mat and used a multimeter to check my voltages and never got consistent readings. Tried again with the same chinese mat and the official back and no issues at all.
Kite09 said:
I had the same issue with a cheap receiver I bought off ebay. The receiver was junk. I took it out of the phone and dropped it on the mat and used a multimeter to check my voltages and never got consistent readings. Tried again with the same chinese mat and the official back and no issues at all.
Click to expand...
Click to collapse
Ah, sorry, should have clarified - I'm using the (allegedly) official Samsung wireless cover, the part that replaces the entire back
xmacro said:
Ah, sorry, should have clarified - I'm using the (allegedly) official Samsung wireless cover, the part that replaces the entire back
Click to expand...
Click to collapse
I am having similar issues using a Palm wireless charger I custom made. I believe the issue is the connection from the cover to the pins on the device next to the battery. I am going to try adjusting it. Also, putting the phone in power saving mode before wireless charging seems to help. Think it may have to do with the wireless charging coil not providing enough amps for the phone to keep up. Trying a different cable/wall charger may help.
xmacro said:
Ah, sorry, should have clarified - I'm using the (allegedly) official Samsung wireless cover, the part that replaces the entire back
Click to expand...
Click to collapse
It could be the output isn't high enough. For the official mat you need to have a 3 amp charger for it to work. And if the output is too low, the phone may be getting confused because it is detecting a current, but not enough of one for it to be registering that it is charging. I have a car charger that has a 1 amp and a 2 amp setting, and when I try it on the 1 amp setting I get the same issue where it connects and disconnects. 2 amp and I get 0 issues.
I have a similar issue. I'm using the official Samsung S-View Wireless Charging Cover with the Nexus 5 wireless Charger. I get nothing when I put them together. I believe the output from the charger is around 2 amps and it works perfectly with my Nexus 5 (surprise, surprise...) Not sure why I don't get any response whatsoever...
Kite09 said:
It could be the output isn't high enough. For the official mat you need to have a 3 amp charger for it to work. And if the output is too low, the phone may be getting confused because it is detecting a current, but not enough of one for it to be registering that it is charging. I have a car charger that has a 1 amp and a 2 amp setting, and when I try it on the 1 amp setting I get the same issue where it connects and disconnects. 2 amp and I get 0 issues.
Click to expand...
Click to collapse
I'm using a blackberry folding blade charger, the stated output is 1.8 amps, and my Samsung charger that came with the phone is 2.0 amps; both give me the on/off problem. Is 3 amps really the key? Where do you find one?
xmacro said:
I'm using a blackberry folding blade charger, the stated output is 1.8 amps, and my Samsung charger that came with the phone is 2.0 amps; both give me the on/off problem. Is 3 amps really the key? Where do you find one?
Click to expand...
Click to collapse
Sorry meant to say 2 amp. But you may want to test your mat and receiver and see if it really putting out the 1 amp the other thread said it was supposed to. If you are getting an output of less than 1 amp that the other thread says it should be then that is probably your issue. Unfortunately I'm not able to measure the outputs on either of my mats to give you an idea until later this evening when I get out of work.
Kite09 said:
Sorry meant to say 2 amp. But you may want to test your mat and receiver and see if it really putting out the 1 amp the other thread said it was supposed to. If you are getting an output of less than 1 amp that the other thread says it should be then that is probably your issue. Unfortunately I'm not able to measure the outputs on either of my mats to give you an idea until later this evening when I get out of work.
Click to expand...
Click to collapse
I think you may be right; it may well be the mats I have are just junk, both of them, unfortunately.
I opened up the back of the phone, and brushed off the wireless charging prongs, just to make sure they weren't dirty. Put cover back on, put otterbox commuter case back on.
Put it on the wireless charger, it cycles on/off again and again, about once per second. Take off the hard shell, leaving just the soft shell, and it cycles on/off about once every five seconds - that is, the interval actually got longer. Take off the soft shell, down to a naked phone, and works after cycling on/off about 5 times, then it settles down and stops cycling.
On another charger, the tilted qi charger, it'll charge if the phone is naked, but if I put even the soft shell of the Otterbox Commuter on it, it'll cycle a few times then just not charge at all.
I'm not sure this is a connection problem with the prongs, or a problem with the wire/charger. I think it has something to do with the field that the qi charger is generating. Since I don't know jack about the qi standard, can anyone tell me if all qi fields are equal? That is, do higher quality qi chargers produce a larger or strong field than cheap units?
Like I said in the OP, these are all very cheap chargers, $15 at most, and I'm wondering if that may be the cause.
xmacro said:
I'm using a blackberry folding blade charger, the stated output is 1.8 amps, and my Samsung charger that came with the phone is 2.0 amps; both give me the on/off problem. Is 3 amps really the key? Where do you find one?
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I use the 2A charger that came with the phone with the CHOETECH pads. The insert is the CHOETECH mat inside the cover. The pad is rated 2.1A input, 1A output. My phone cycles on-off occasionally when the phone hits 100%. I use the Otterbox Defender case.
jetskier said:
I use the 2A charger that came with the phone with the CHOETECH pads. The insert is the CHOETECH mat inside the cover. The pad is rated 2.1A input, 1A output. My phone cycles on-off occasionally when the phone hits 100%. I use the Otterbox Defender case.
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Interesting, so could the problem be due to just using a cheap generic? Seems that the cheap ones may be generating a smaller or weaker field?
Just wanted to post an update - bought a more expensive charger, one with 3 coils instead of the 1 that was in my other two - and now it charges fine, right through my Otterbox Commuter case.
So to anyone else having this problem - the field generated doesn't seem to be big enough to penetrate the Otterbox Commuter with just one coil, you need 3 or so.
EDIT: Specifially, it was the Cheotech Qi wireless charger, rectangle with LED
xmacro said:
Just wanted to post an update - bought a more expensive charger, one with 3 coils instead of the 1 that was in my other two - and now it charges fine, right through my Otterbox Commuter case.
So to anyone else having this problem - the field generated doesn't seem to be big enough to penetrate the Otterbox Commuter with just one coil, you need 3 or so.
EDIT: Specifially, it was the Cheotech Qi wireless charger, rectangle with LED
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it's not the problem with the coil, they give out the same current, it's because the angled charger is a cheap and nasty one, and the flat one is just a fake one, the official one cost alot more.
3 coils only give you a wider surface detection, the current is just the same as a single coil or a 7 coils.
The 3 coils charger you have is a rebadge of powerqi T300 which is a highly recommended one.
kms108 said:
it's not the problem with the coil, they give out the same current, it's because the angled charger is a cheap and nasty one, and the flat one is just a fake one, the official one cost alot more.
3 coils only give you a wider surface detection, the current is just the same as a single coil or a 7 coils.
The 3 coils charger you have is a rebadge of powerqi T300 which is a highly recommended one.
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Ya learn something new everyday - thanks for the info

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