Can i use this to charge my nexus 7 in dash in my 2004 wrx? Gonna leave it plugged in all the time as it will be installed in the dash.
http://www.ebay.com/itm/UN3F-Car-Ch...75?pt=US_Power_Inverters_&hash=item41775672fb
I know the stock charger is 2a, does 1 more amp make a difference?
The Nexus 7 like most devices has a current limiter on board so a 3 amp 5 volt supply will be fine.
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Drsnazzy said:
Can i use this to charge my nexus 7 in dash in my 2004 wrx? Gonna leave it plugged in all the time as it will be installed in the dash.
http://www.ebay.com/itm/UN3F-Car-Ch...75?pt=US_Power_Inverters_&hash=item41775672fb
I know the stock charger is 2a, does 1 more amp make a difference?
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Click to collapse
3a is a max current, not a working current so it should be ok.
If it were me, I would have the 5 volt supply on a switched circuit. Charging while the car is running will keep it topped up, and I am leary of leaving any battery always charging.
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rmm200 said:
If it were me, I would have the 5 volt supply on a switched circuit. Charging while the car is running will keep it topped up, and I am leary of leaving any battery always charging.
Sent from my Nexus 7 using xda app-developers app
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A good idea, ill think something up! Thanks guys!
Related
I was wandering if its only my nexus s(i9023) takes upto 3 to 4 hours to charge.
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same here, up to 3-4 hours, which is quite much
The charge time is quite ridiculous
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You can use a different charger - the one that comes with the Evo is 1.0A, not the 750ma that comes with the Nexus. Still - the Nexus is way too slow, but this helps.
I hope this is not the case. I just purchased the Nexsus S last night and i like guick charging while in the car. The iPhone 4 I have been using charges very quick. I am using a 2.1 AMP car charger. Right now I'm at 82% and charging so will see how long it takes to get 100%
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Since my last post, battery has gone up 85% charged. I just disconnected to grab some lunch.
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Check whether your phone is charging in AC mode or USB mode when charging with the car charger. If it is slow, I suspect it's charging in USB mode.
I have Galaxy Tab 7. Will that charge faster since the Tab has a bigger battery and hence a more powerful charger?
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I believe the SGT 7 charger is a 5v charger, which is the same as the Nexsus S charger with 0.7A.
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Buy a battery charger. I like the one from Samsung. There are also many aftermarket options.
So lovely to come home and pop in a fresh battery.
rican408 said:
Buy a battery charger. I like the one from Samsung. There are also many aftermarket options.
So lovely to come home and pop in a fresh battery.
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Might do that. Saw on eBay, 2 1500mah batteries and charger for 9.99. Only thing is they take forever to ship from Hong Kong.
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ElCamino said:
I believe the SGT 7 charger is a 5v charger, which is the same as the Nexsus S charger with 0.7A.
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Actually, i just took a look at my Galaxy Tab 7" charger and the output is 5V 2.0A. It's not the same amperage as the Nexus S, but higher. Should definitely charge faster then.
I use a 1 amp Pre cylinder charger.
No idea how long it takes; so far have only charged overnight with the occasional USB cable top-up.
Not sure if I'd try something pushing 2A though...
Sent from my Nexus S 4G using Tapatalk
Sorry if this sounds amateur, but I was wondering if I would be able to use my cell phone charger with the Nexus 7 without it causing damage. Or is the reverse true too?
The output on the Nexus 7 charger is : 5V - 2A
The output on the One S charger is: 5V - 1A
The input on the Nexus 7 charger is 100mA higher.
Now technically this means if I use the Cell charger the tablet would take longer to charge right?
But what if I use the tablet charger for my cell phone? Would it damage my phone?
I'm only wondering because I don't want to have too many cables cluttering my workspace.
Thanks in advance.
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You're right about the charge time. And yes you can use it on your phone. I have a 2A charger for my g2x that's blazing fast.
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It charges super slow on my GNex charger. 10% in an hour
you can use the nexus7 on your phone it will work as a rapid charge, i wouldnt make a habit of it...
Don't quote me on this, but using the 2A charger for your phone should work just fine, as it should have an internal limiter that prevents too much current from being passed through the device, damaging it. I have done that before (with a different charger) with success, so it should be just fine. Also, the N7 *should* charge on the 1A charger, just a LOT slower, and may only charge if you turn it off.
Thanks for all the quick responses guys. I just wanted to make sure I don't do any damage to them.
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Hi.
I just forgot my charger in a hotel... Can anyone check how much mA the charge have so I can buy a new one???
1.5a
Just checked mine a few hours ago
Sent from my Nexus 4
Mine is 1.2A
Sent from my Nexus 4 using xda premium
The proper original charger only outputs at 1.2 amps.
Thank you folks!
Always buy the largest ma adapter you can find..devices draw what they need and you can charge more devices and charge faster when the adapter isn't the limiting factor.
Sent from my Nexus 4 using Tapatalk 2
I charge mine with my old G2X charger at 1.0a and it`s ok
Fastest chargers I've ever had are my old blackberry wall chargers. They're even faster than the chargers that come with the Nexus.
Sent from my Nexus 4 using Tapatalk 2
Darrkman said:
Fastest chargers I've ever had are my old blackberry wall chargers. They're even faster than the chargers that come with the Nexus.
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As long as your charger can supply the maximum current asked for by the N4 (about 0.8A I think, if memory serves correct, from the service manual), then it doesn't matter how fast or high current it can supply, it won't charge any faster than the stock charger.
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Does this phone expend more energy to keep up with charging? When mine is charging and I'm using it, it slowly decreases. Is this normal?
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I've noticed this 2
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Mine too, I find it very strange. However, when I use 2amp car charger, then its all good lol. 1.2amp of stock charger must be not good enough
The phone only draws about 800mA maximum, so a 1.2A charger is more than enough, and a 2A charger will make no difference.
Sent from my Nexus 4
So why is it discharging when its being used and plugged in?
moldovanos said:
So why is it discharging when its being used and plugged in?
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Sounds like there might be something wrong with your charger. Try a different charger if you have one.
Sent from my Nexus 4
Well, its not only me, I've seen bunch of people having the same thing. Lots of defective chargers or perhaps custom roms play role in it?
At times when I leave my phone for charging overnight it stops at a particular percentage and starts discharging. In certain cases with the original charger the phone at times continuously flips between charging and discharging.
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steviewevie said:
The phone only draws about 800mA maximum, so a 1.2A charger is more than enough, and a 2A charger will make no difference.
Sent from my Nexus 4
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I has a similar question about voltages and amperage of chargers and battery degradation posted it here on xda in the nexus 4 forum has to do with this issue of voltages and amps and wireless charging with the official one from google
Tarun95 said:
At times when I leave my phone for charging overnight it stops at a particular percentage and starts discharging. In certain cases with the original charger the phone at times continuously flips between charging and discharging.
Sent from my Nexus 4 using Tapatalk 2
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I had the same problem with mine! Stock charger is GARBAGE! Use something else!
Doesn't anything discharge when no electricity is pumping through the battery? The electricity cuts off when its full. So basically I think the power from the charger bypasses the battery but continues through the phone.
Hi Guys,
I have ExtremeMac Dual USB charger, and I want to use this to charge my Nexus 4. and other devices such as my Galaxy SIII. My questionis is it safe to use this charger for my devices? My plan is also to use this charger when I buy the new Nexus 7
Anybody who has this charger? any comments ?
Thanks
lee.n said:
Hi Guys,
I have ExtremeMac Dual USB charger, and I want to use this to charge my Nexus 4. and other devices such as my Galaxy SIII. My questionis is it safe to use this charger for my devices? My plan is also to use this charger when I buy the new Nexus 7
Anybody who has this charger? any comments ?
Thanks
Click to expand...
Click to collapse
Output seems to be 5W, 2.1 A over two ports. Looks like ~default specifications to me. Should cause no problem.
If you want to double check, take a pic of the output specs that are usually written on the charger and post it. I'll verify.
Its ExtremeMac Universal USB-WAL-11 AC Adapter.
Model: USB-WAL-11
Power Specification, I got from the website.
Input Voltage: 110 V AC
220 V AC
Frequency: 50 Hz
60 Hz
Output Voltage: 5 V DC
Maximum Output Power: 10 W
Very sorry, cannot post a picture , because I am on travel right now and I wasn't able to bring it with me.
lee.n said:
Its ExtremeMac Universal USB-WAL-11 AC Adapter.
Model: USB-WAL-11
Power Specification, I got from the website.
Input Voltage: 110 V AC
220 V AC
Frequency: 50 Hz
60 Hz
Output Voltage: 5 V DC
Maximum Output Power: 10 W
Very sorry, cannot post a picture , because I am on travel right now and I wasn't able to bring it with me.
Click to expand...
Click to collapse
Tech Specs
AC INPUT
110V-240V
DC OUTPUT
5Vdc/1.2A
Click to expand...
Click to collapse
-from the Play store link for a N4 power adapter.
This matches your charger perfectly, so no problems.
You can use the xtrememac charger, without any hesitation.
Wondering if these kind of charger has auto shutoff when the battery is full ? I usually leave my phone charging overnight.
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lee.n said:
Wondering if these kind of charger has auto shutoff when the battery is full ? I usually leave my phone charging overnight.
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Click to collapse
Almost all chargers ( unless they're cheap knockoffs ), have auto-off these days.
That charger looks like it's high-quality stuff and they've claimed support for various other devices in the description too (including LG devices).
I think we can be sure that it has auto-off.
Thanks so much for enlightened me thanks for your help and suggestions.
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lee.n said:
Thanks so much for enlightened me thanks for your help and suggestions.
Sent from my Nexus 4 using xda app-developers app
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Haha, no problems @lee.n.
Happy to help...
Update: here's the image of the changer showing the power specification.
Nice!
This is a nice charger! I will get one! :good:
lee.n said:
Update: here's the image of the changer showing the power specification.
Click to expand...
Click to collapse
Yup, perfectly safe to use with the N4. Have fun wherever you're travelling, and forget about the charger...
Thanks again for your help.
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Got myself a nexus 7 ,
Nexus 7
5V / 2.0A
Nexus 4
5V/ 1.2A
XtremeMac USB Dual Charger
5V/ 4.2A
Is this fine? I am bit worried on the Amps.
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lee.n said:
Got myself a nexus 7 ,
Nexus 7
5V / 2.0A
Nexus 4
5V/ 1.2A
XtremeMac USB Dual Charger
5V/ 4.2A
Is this fine? I am bit worried on the Amps.
Sent from my Nexus 7 using xda app-developers app
Click to expand...
Click to collapse
Understand that, that's over two ports so you use 1 port to charge the phone which is 2.1amp and you'll be charging around 1800mAh so you're going to be fine.
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