Database Develop

[Q] GPS, batteries and car chargers

Hey guys
Have got the GPS working properly on my SGS (props to those who figured that out) but I've noticed something a little concerning.
When I'm running google navigation that battery continues to run down, even when its plugged into my car charger. It'll survive for a good few hours, but it seems a bit bad to arrive at wherever I'm going and need to borrow a mains charger when I get there.
Anyways, I'm normally running bluetooth to my jabra speakerphone/fm transmitter, but nothing else that should agitate the battery too much, and with GPS turned off, it happily charges even with the screen perma-lit.
Im running stock JG5, and my dash charger consists of a cigarette lighter to USB converter and the stock USB cable.
Any thoughts on whats up with this would be greatly appreciated!

The phone is probably consuming more power then the 500 mah charger can provide. You need a dedicated mini usb for charging, the ones that actually are usb cables only provide half power
Sent from my GT-I9000 using XDA App

this is what i use
http://forum.xda-developers.com/showpost.php?p=7677108&postcount=22
2A car charger

android53 said:
The phone is probably consuming more power then the 500 mah charger can provide. You need a dedicated mini usb for charging, the ones that actually are usb cables only provide half power
Sent from my GT-I9000 using XDA App
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That kinda sucks .
Ah well, I'll see what I can find that outputs at that kinda range. Ty guys.

Car Charger

anyone found an alternative car charger, I dont mean using the wall charger with an inverter
but a charger that plugs into the lighter plug?

Contra1971 said:
anyone found an alternative car charger, I dont mean using the wall charger with an inverter
but a charger that plugs into the lighter plug?
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I used this on my Palm Pre. It charges my Epic 4g, and I tried it out on the Nook Color this AM.
It worked just fine.
http://cgi.ebay.com/OEM-SPRINT-CAR-...Accessories&hash=item45f6ea76fc#ht_1484wt_905

There's qutie a number of cigarette lighter adapters available that offer a standard USB port. You'd supply your own cable. Here's an example:
http://cgi.ebay.com/Mini-Car-Cigare...053289?pt=PDA_Accessories&hash=item2a0eed35e9
No, AFAIK, none of these will charge as fast as the standard NC charger. For that, you'd need to go thru the hassle of getting an inverter.

Monoprice has cigarette lighter to female usb chargers for $1.16 that you can use your usb cable with.
Sent from my DROIDX using XDA Premium App

well I bought 1 from Wally World and it has a dual USB output abd says it is .5v and 1.5amp but when I plug in my NC it doesnt say charging
does the sprint charger?

Jgrimoldy said:
No, AFAIK, none of these will charge as fast as the standard NC charger. For that, you'd need to go thru the hassle of getting an inverter.
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Why is that any more of a hassle than getting a car charger?

Contra1971 said:
well I bought 1 from Wally World and it has a dual USB output abd says it is .5v and 1.5amp but when I plug in my NC it doesnt say charging
does the sprint charger?
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Yes, the Sprint charger says 'charging' As the others stated, it's not fast, but it works just fine...

it isnt more of a hassle, I have 4 inverters, but they all have fans and make noise I wanted to use a NO noise charger thats all

d.v said:
Why is that any more of a hassle than getting a car charger?
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Larger, heavier, more cords, much more expensive (when compared to a $1 cig-to-usb)...

Just has to be able to push out the current needed. Otherwise it may not charge, or it will charge very slowly.

The Scosche reVIVE II Dual USB Car Charger for iPad has 2.1 and 1.0 amp usb outlets, I use this for plugging in my evo and nc. It definitely charges them both even while having all the wireless radios going and tethering with gps and both screens full bright.

Contra1971 said:
it isnt more of a hassle, I have 4 inverters, but they all have fans and make noise I wanted to use a NO noise charger thats all
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Same issue here, I have a road-trip coming up this summer and I'd love to load up my NC with music and dash-mount it but it'll be a 14-20 hour drive (depending on the number of whiz breaks the wife and kids need) and I don't think I could push the battery quite that long and the inverter when wired to the radio creates quite a buzzing.

jsw31 said:
The Scosche reVIVE II Dual USB Car Charger for iPad has 2.1 and 1.0 amp usb outlets, I use this for plugging in my evo and nc. It definitely charges them both even while having all the wireless radios going and tethering with gps and both screens full bright.
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Click to collapse
Are you using the Nooks specific cable on the 2.1A connection? I too am going on a trip soon, and would love a car charger that can actually CHARGE the nook while using it..

www.amazon.com/Scosche-reVIVE-Dual-Charger-iPad/dp/B003N7NO4Q
Is this the one you have? It looks nice and the price looks okay. Nice find. I also saw a wall plug dual usb version by same company on the same page, do you have any info on that one too? It would be nice to stream line travel chargers to a minimum, thanks.

It definitely charges both. Like I said in my previous post, I usually have both my Evo runniong and the Nook full bright display on for 50 minute commute, using TetherGPS, wifi hotspot, torque and bluetooth, google navigation pulling satellite imagery, and playing mp3s. Granted, it is slower to charge than without all that stuff running but my previous car charger would lose charge with my evo running just gps and no wifi hotspot previously.
I am using stock blackberry usb cables that I ordered from Amazon as well for $1.25 for a pair (google 'B001UC9NOQ', can't post links yet.) These are nice, thick cables that handle the charger great. I leave them plugged in inside the truck at all times. I have not used that Scosche wall charger, I use the stock chargers for travel that remain in my backpack, and I have other usb cables I use to charge at home. I would imagine it works just as well though.

jsw31 said:
It definitely charges both. Like I said in my previous post, I usually have both my Evo runniong and the Nook full bright display on for 50 minute commute, using TetherGPS, wifi hotspot, torque and bluetooth, google navigation pulling satellite imagery, and playing mp3s.
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http://www.amazon.com/Scosche-reVIVE-Dual-Charger-iPad/dp/B003N7NO4Q
Luckily I'm used to carrying extra USB cables around but the noise my inverter generated while charging was super annoying, went ahead and ordered this to try it out. Hoping it works for what I need, thanks for the tip

projektdotnet said:
http://www.amazon.com/Scosche-reVIVE-Dual-Charger-iPad/dp/B003N7NO4Q
Luckily I'm used to carrying extra USB cables around but the noise my inverter generated while charging was super annoying, went ahead and ordered this to try it out. Hoping it works for what I need, thanks for the tip
Click to expand...
Click to collapse
Let us know if it works for you. An Amazon reviewer just reported that the Scosche reVIVE II didn't work on their Nook Color:
The nook color needs 1.9 amps, this can't do it. Scosche claims 2.1 amps but it isn't even close. It BARELY charges the nook if the machine is sleeping, when on, the battery charge goes down even while supposedly "charging." Playing video, it's even worse. On top of that if I try to charge a regular phone it puts out too much amperage on the 1 amp side and overheats the phone. Save your money, look elsewhere.
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However, the reviewer may not know what they're talking about. A charger cannot put out "too much amperage." Too much voltage perhaps, but not too much amperage (current). A device draws only the current it needs.

An iPad needs an amperage around 2 A also. I got the Belkin Charge 2.1 made for the ipod/ipad and it DOES charge the nook color. It has a 12V plug with one USB outlet at 2.1A. I used the cable from the nook color obviously...

See, part of my worry is not the current output, but if the nook can actually communicate with these chargers and get a full 1.9A draw, instead of the detault 500mA over non B&N chargers...

cybrdmn said:
An iPad needs an amperage around 2 A also. I got the Belkin Charge 2.1 made for the ipod/ipad and it DOES charge the nook color. It has a 12V plug with one USB outlet at 2.1A. I used the cable from the nook color obviously...
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I bought the same Belkin iPad charger from Best Buy. Rated at 2.1A. I used it with the B & N USB cable that came with my Nook Color. I used the 'Battery Monitor' software mentioned earlier here or on another post to compare charge current readings against the stock B&N wall charger/cable. The Belkin was charging right at 500 mA (NC was using ~450 mA, software showing +36 mA current). So somewhere the B & N cable & charger must have a unique way of determining that it is a B&N charger / cable and to allow the full 2.1A charge. I used the Belkin 12V charger on my TomTom and it allowed just over 1A charge, so I know the Belkin iPad charger is fine.
Yes, it does charge the Nook Color, if you are at 800 Mhz and minimum brightness running non-intensive applications--and it barely charges at that ~50 mA. It does turn the charge indicator on the B&N cable orange, and the status indicates battery charge on the screen.

In car charger problem.

I am lucky enough to have a note n7000 that doesn't suffer from any Wakelocks or battery issues.
I have 4.0.3 stock ROM installed, rooted with speedmod kernel 3-7 and carbon tweaks installed.
Phone runs great and gets a quadrant score around 4300.
I got an in car USB charging adapter. It is 5 volt 1 amp. The adapter came with a USB cable and I used that to charge the phone while on a 2 hour journey using GPS navigation and the battery was drained completely despite being plugged into the charger. Battery shows lightning bolt symbol and phone beeps to show that charger is plugged in.
I also left the phone switched off and plugged into the charger in the car for about 3 hours but that didn't charge the battery at all.
Any idea why it doesn't work?
Also real football 2012 used to work great on my phone but now it just won't load. I tried reinstalling but it still won't load up. Any idea why that might be??
Sent from my GT-N7000 using xda app-developers app

It could be the charger or the lead - I presume the phone charges ok from the mains.
I have one USB lead that wont charge my Note if I'm using it at the time {battery capacity goes down), and I expect it's down to low cable quality with not enough copper so too high a resistance dropping too much voltage.
The best way is to test by substitution.

I think note requires 3amp car chrger
buy from genuine samsung accessory

dr.ketan said:
I think note requires 3amp car chrger
buy from genuine samsung accessory
Click to expand...
Click to collapse
yep buy a genuine samsung car charger. I bought one and i haven't encountered a problem with it....

Longer USB Charge Cable

Anyone know of a good quality usb charging cable that will charge the phone at full power, isn't super expensive, and is longer than the stock one? The one that comes with this phone is just too short for me. I even tried my galaxy nexus usb cable, but it the phone says it is charging at a slower rate.

I'm using my Charge's cable with the LG adapter and the charging is quick as heck. BTW, I went from the Charge to GNex to G2 as well lol. Loved each upgrade!!

nismology said:
I'm using my Charge's cable with the LG adapter and the charging is quick as heck. BTW, I went from the Charge to GNex to G2 as well lol. Loved each upgrade!!
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Click to collapse
I use these:
http://www.amazon.com/Palm-3403WW-M...DRCHT3E/ref=sr_1_10?ie=UTF8&qid=1380823539&sr
Quality is awesome and they are about 1.5m long. Stable for data and charging. :good:

I'm just using a cheap USB extension cable inbetween the LG charger and stock usb cable. Works fine, charges fast, doesn't give the "slow charge" notification.

I agree with the USB extension cable. I really dislike the durablity of micro USB, so I would rather use the stock cable with an extension than a cheaper built long cable.

Ploxorz said:
Anyone know of a good quality usb charging cable that will charge the phone at full power, isn't super expensive, and is longer than the stock one? The one that comes with this phone is just too short for me. I even tried my galaxy nexus usb cable, but it the phone says it is charging at a slower rate.
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Click to collapse
I believe you need a usb 3.0 cable to not get the slow charge notification.

Doesn't work
MasK said:
I use these:
LINK REMOVED
Quality is awesome and they are about 1.5m long. Stable for data and charging. :good:
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I have an HP Touchpad, and it comes with a cable that looks identical to this. When I try to charge my phone with it, I get the "not compatible" message and charging is disabled to prevent damage... The cable may be different on the inside, but I would think the tablet cable would allow faster charging than the phone.

Alright... so far I have come across 3 different charging scenarios.
Charging with fading red LED - fast charge
Charging with white LED - medium charge
Charging with white LED + message "slow charge" - slow charge
I hope my interpretation is correct. So far I'm using my 2A original Asus charger from transformer prime and USB2.0 Palm-pre cable (which I posted above) and I'm getting fast charge (red glows, super speed). Now I only have this setup at work.. so I'm bearing with medium charge at home.
Trying not to use the original charger/cable, so I can have high resell value
---------- Post added at 07:18 PM ---------- Previous post was at 07:15 PM ----------
mouf32 said:
I believe you need a usb 3.0 cable to not get the slow charge notification.
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Click to collapse
I would disagree with this.
USB3.0 cable have extra pins and connector is bigger (Note3 has this). The cables I have are USB2 and I don't see this message.

MasK said:
Alright... so far I have come across 3 different charging scenarios.
Charging with fading red LED - fast charge
Charging with white LED - medium charge
Charging with white LED + message "slow charge" - slow charge
I hope my interpretation is correct. So far I'm using my 2A original Asus charger from transformer prime and USB2.0 Palm-pre cable (which I posted above) and I'm getting fast charge (red glows, super speed). Now I only have this setup at work.. so I'm bearing with medium charge at home.
Trying not to use the original charger/cable, so I can have high resell value
---------- Post added at 07:18 PM ---------- Previous post was at 07:15 PM ----------
I would disagree with this.
USB3.0 cable have extra pins and connector is bigger (Note3 has this). The cables I have are USB2 and I don't see this message.
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Yeah seems like usb 3.0 cables have an extra connector that is not compatible with the G2. Can you possibly confirm that the cable you recommend will charge at full speed with the OEM LG charger? I'm wondering if it's either the charger itself that needs a certain cable or if there is something specific to the cable itself like the gauge of wire that is affecting charging speed.

I think you have to use the charger> 1.5A with good cable

Ploxorz said:
Yeah seems like usb 3.0 cables have an extra connector that is not compatible with the G2. Can you possibly confirm that the cable you recommend will charge at full speed with the OEM LG charger? I'm wondering if it's either the charger itself that needs a certain cable or if there is something specific to the cable itself like the gauge of wire that is affecting charging speed.
Click to expand...
Click to collapse
Alright.. one thing I can confirm is that the charging speed depends on the charger.. not the cable.
I tried my fave Palm pre cable which I recommend into a slow charger and the message "slow charging" did come up.
And I also used this cable to the port that gives me medium speed.. and true enough, it was charging with white light, without the "slow charging" message. It is clearly following the charger, not the cable.
Electrically I don't see how cable should affect this. I know Samsung devices charges faster if the data+ and data- pins are shorted. Not sure about these LG ones. However, charging happens simply on the +/-5V lines.. it can't get any more complex than this.
---------- Post added at 01:10 PM ---------- Previous post was at 12:53 PM ----------
I just tested my McKal 2.1A charger, S3 original charger 1A and HTC original 1A charger.
All of these did not say slow charging, but they didn't have the glowing red LED (fast charging) either.
I guess I'm lucky I have my Asus transformer prime charger to get fast charging..
I know this Asus charger is a USB3 one, BUT only Asus propriety cable for the Prime tablet uses the USB3 pins. I'm sure that my cable is not a USB3 one.

I would like to know specifically a charger I can buy on Amazon prime preferably, that will fast charge... (car charger) I don't want to guess... so who has one that works- that you own and use and KNOW works.

MasK said:
Alright.. one thing I can confirm is that the charging speed depends on the charger.. not the cable.
Click to expand...
Click to collapse
I hate to argue with you, but that's not what I am seeing here.
Using the LG charger and cable, I get fast charge.
Using the LG charger and any other cable, it immediately gives me slow charge. I've tried about five different USB cables. A BlackBerry branded one, a Duracell one, the white Amazon Kindle one, an old HTC one, and my old GNex cable. The only one that gives me fast charge is the LG supplied cable.
I bought a USB power dongle that has selectable modes of operation (Samsung charge, Apple charge, and "data pass-through") and will deliver 2.1 amps from a standard USB port. It's Chinese made so I know there might be danger of blowing the power on a USB port, but it's what I've got to test with. I can't get this phone to fast charge in any mode at all. With the GNex, it charges fast. With my iPad, no sweat.

I can confirm this. Charging speed definitely depends on the cable. Here it's the same as with you - the only cable that delivers full charging speed (approx. 1600mAh according to BMW) is the supplied LG cable. The worst one (100mAh) is an old Kindle cable. All other cables I have are somewhere between that. None is "faster" than 1000mAh. The main visible difference between the LG cable and the other cables is the thickness. The LG cable is the most thickest. From my other cables, the ones that reaches approx. 1000mAh are also quite thick (but not as thick as the LG cable).
Then I received my free LG PD233 Photo Printer today (amazon preorder offering). It comes with a 1200mAh charger (the G2's charger has 1800mAh) and a very similar looking cable. It's a bit shorter and white. With this cable I have the same full charging performance.
So obviously LG spend some more cents on better-quality cables. However, given that there are plenty of high-power wall and car chargers (with 2000mAh and up) available on the market, one should assume that there should also be cables available that can be used with this chargers. I just didn't managed to find one yet.

I use a USB extension cable to charge the phone battery takes 5 hours, while normal rechargeable battery takes only 2 hours

BigBlue007 said:
I can confirm this. Charging speed definitely depends on the cable. Here it's the same as with you - the only cable that delivers full charging speed (approx. 1600mAh according to BMW) is the supplied LG cable. The worst one (100mAh) is an old Kindle cable. All other cables I have are somewhere between that. None is "faster" than 1000mAh. The main visible difference between the LG cable and the other cables is the thickness. The LG cable is the most thickest. From my other cables, the ones that reaches approx. 1000mAh are also quite thick (but not as thick as the LG cable).
Then I received my free LG PD233 Photo Printer today (amazon preorder offering). It comes with a 1200mAh charger (the G2's charger has 1800mAh) and a very similar looking cable. It's a bit shorter and white. With this cable I have the same full charging performance.
So obviously LG spend some more cents on better-quality cables. However, given that there are plenty of high-power wall and car chargers (with 2000mAh and up) available on the market, one should assume that there should also be cables available that can be used with this chargers. I just didn't managed to find one yet.
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Click to collapse
I completely agree, I've also noticed is that the LG supplied cable is unusually thick gauge wire compared to other micro usb cables. It's 20 gauge wiring and fairly short, which means that it has extremely low resistance to current. I mean unusual, in that I literally cannot find any micro usb cables that thick for sale and I have been searching online. Part of the problem is that cables are usually not listed online in terms of the gauge of wire, which combines with the fact that micro usb cables that thick aren't common, yet. That's probably the reason that no cables that people are trying are working with the stock lg charger at full charge.
If anyone can find or knows where to buy 20 AWG micro usb cables or thicker, please post the source here.

The cable for the G2 is a lower gauge because of the higher amperage charge rate. Which is why the GNex (what i upgraded from too) cable charges slower, its only guaged to be sufficient enough to carry a .15A charge rate. The G2 charge rate is .3A, hence the reason why they used a larger cable.

So, the G2 can recognize the resistance and slow down charging on lower-gauge cables it seems? How very UA-approved of them...
Now, the hunt is on to find heavy gauge micro USB cable...
Perhaps this?
http://www.monoprice.com/products/p...=10303&cs_id=1030307&p_id=8639&seq=1&format=2

I've been looking for a 24/20 AWG micro USB cable for a while now. I haven't been able to find one.

Interesting find you guys..
Guess I was wrong after all. Also something to note is that with my fast charging cable directly connected to the phone, all is well. When I run it through my Samsung S4 charging dock, it slows down.
Perhaps it's time to email LG about this? Would be a valuable question..
Also, I still stand by the fact that my palm-Pre cable is capable of fast charging, at least with my Asus transformer prime charger. I haven't even started using the original charger/cable..
This is the exact package which I ordered:
http://www.amazon.com/gp/product/B002ITKQKU/ref=oh_details_o04_s00_i00?ie=UTF8&psc=1

Possible unable to charge fix??

Just experiencing the drain of death...
Backstory:
Bought this tablet at a pawnshop and battery was dead for 10$.
Came home and recently had pulled a pile of USB chargers out of the dumpster.
Plugged it into random charger.
Let sit for couple hours, got battery ? sign.
Left over night, battery with critical red sign.
Left another day and almost 35% charged and then was able to turn on.
Corrupted android install and rescue.
Few days of searching, found all the webdoctor files, update script, restored, upgraded to latest webos.
Added PAC-ROM 4.4.4, ran great.
Upgraded to 5.1? Ran like crap and then horrible battery drain.
Left it alone for a few days and died all the way.
The fun part:
Wouldn't charge. Tried 5 different USB chargers, all 2A. No sign of life at all.
Start to think back over the steps and realized...I hadn't tried the first charger I used!
Pulled it off my raspberry Pi cause I knew it was a 2Amp.
Plugged in the tablet. INSTANT BUTTON LIGHT!!!
Left overnight. Hard Reset gets me ? battery logo. Still charging and waiting.....
Differences:
Samsung Galaxy USB Charger - 2Amp 5.3V!
Reports online say some put out as much as 5.6. Most agree the battery charge circuit will regulate the excessive voltage down on 95% of devices.
You can find them online for 5$. Someone else try a 5.3v charger and confirm this.
Explains why my Raspberry was running hot as well..

Haha my sister just asked if she could use my HP touchpad, couldn't find the charger, my Samsung Note 3 charger will get it going, but once it dies dies and I plug it in, it will need a solid 20 minutes before I can get it to hit 0 percent and turn on. I just ended up buying some chargers and cables based on TheWireCutter website that has a ton of information about both chargers and cables... seriously I ended up spending probably nearly an hour looking at just different micro usb cables (they are not all made equal) obviously length of the cable and gauge can affect the max amp it can put through... ended up buying EZOPower Extra Long 6ft Black Micro-USB. Even though they didn't have the highest rating in terms of consistent amp the only better ones were 3 foot long cables, and I really wanted the 6ft. For charger I got Anker 24W 4.8A 5V charger with 2 usb, which makes each one output 2.4A 5V and 12W with a high reliability. So I'll see if 5V will make it haha.

The stock HP charger than comes with the Touchpad is 5.3v...

I find that for the BEST and fastest charge, you need to hit that sweet spot of 5.3V. Anything that puts out less will take practically an eternity or not charge at all really.

darranwil said:
...[-SNIP-]... Samsung Galaxy USB Charger - 2Amp 5.3V!
Reports online say some put out as much as 5.6. Most agree the battery charge circuit will regulate the excessive voltage down on 95% of devices.
You can find them online for 5$. Someone else try a 5.3v charger and confirm this. ...
Click to expand...
Click to collapse
theronkinator said:
The stock HP charger than comes with the Touchpad is 5.3v...
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Click to collapse
Yes, theronkinator is correct about the voltage ratings.
My perception is that the TouchPad is a picky eater when it comes to chargers and USB cables -- even more-so in webOS than Android. I suspect webOS is coded to fight, resist, or flat-out refuse connection with any charger that doesn't precisely match the current and voltage specs of the HP charger. Apple seems to be the same way.
Keep in mind that the USB cable can play an equally-important role in the charging circuit. Some of the cheap USB cables are wired for charging only. I recall reading something years back that the original HP TP cable was wired differently from standard USB cables. I think it had something to do with resistance across certain pins, but I'm not sure.
It's a sad fact of e-waste that more than a few HP TPs and iPads have found their way into land fills, just because the owner used the wrong charger and/or USB cable and then blamed the tablet for not charging.
---------- Post added at 06:33 PM ---------- Previous post was at 05:53 PM ----------
As I said in the above post, there is a physical difference in the HP TP USB cable. Details, courtesy mpgrimm2, can be found here.