Is there any way to get my X7510 to be more efficient at charging?
It seems recently that even from the straight charger it's taking almost all incoming power to run leaving next to nothing for charging.
USB Sync has always been like this, but straight charge used to be quite quick.
Are you using the original charger that came with it?
I've also found that the Flint is much more fussy about charging than any other device, including the previous X7500. USB charging takes an age, especially if the device is left on. My 'power pack' emergency charger hardly charges it at all, despite being able to fully charge my Advent 4213 netbook. My Diamond's wall socket charger hardly charges it at all, despite being technically the same spec as the Flint's one.
My original charger, and my Brodit car cradle both still charge mine pretty well- the Brodit will charge it up from 50% to 100% in about 1 hour, even with SatNav operating.
With my external power pack, or if I can only access a USB charge, I now use a screen-off application (built into PocketPlus) to keep it turned on, but on a very low battery drain.
Yes, it's the original charger. It appears to have had a knock though, the plug is a bit bent. I wonder if that's damaged something :-/
Can you guys recommend a small portable power recharger that works well with the X7510?
I would be taking a long flight soon and I would like for my X7510 to last the trip.
I can't really suggest anything because neither of my 'emergency packs' work properly with the X7510.
Perhaps you could check with the airline whether they have 'in-seat' charging/power facilities? Some have a powered USB charging socket and some have proprietary connections, but might have a suitable adapter?
It seems the only way to fast charge a N1 is with the supplied wall charger. Standard Micro USB chargers whould only allow at much as 450mA of charge current regardless of the adapter current capacity.
The bundled charger however, manages to push 900mA into the N1. I made a cut in the charger wires and measured the current draw to make sure.
Now.. I'd like my car charger to be able to do the same. There must be some hack in the plug of the N1 charger since there are only 2 conductors from the case to the plug. You can see that the plug is somewhat longer than similar Micro USB plugs..
So I tried to see if one of the 3 unused pins can tell me anything but.. they seem unconnected as far as I could tell. Diode measurement (to test for any digital part inside) also did not produce any results. The next obvious step is to take the molded plug apart but I'd rather not...
Does anyone have any clue as to what makes that plug so special?
And please - I did my tests with a bench power supply - not the car chargers - so don't go around telling me it has to do with charger current capacity.
Thanks,
Nir
are you sure the micro usb cords you are using are able to handle the amps? most chargers made prior to now, only push about 450mA, the G1, and N1 chargers i have push a full amp though. I just ordered a car charger that pushes an amp too. There is nothing "special" about the plug.
followinginsanity said:
are you sure the micro usb cords you are using are able to handle the amps? most chargers made prior to now, only push about 450mA, the G1, and N1 chargers i have push a full amp though. I just ordered a car charger that pushes an amp too. There is nothing "special" about the plug.
Click to expand...
Click to collapse
I beg to differ. All the cords can easily supply 1 AMP. It is the phone itself that decides how much to draw from the charger based on something IN THE PLUG.
I am an electronics engineer so do understand I know perfectly what I am talking about
And your 1A car charger does not supply anything over 0.45A to the phone.. you will see that if you are using the phone while it charges (say nav or phone call) the phone actually looses some charge albeit it being charged... This will not happen with the stock wall charger.
I have a 900mAh car charger that I use and it does in fact give 900mAh to the phone while charging. I can tell because I used a 450mAh charger at home before and it was slooow and I could drain my phone while charging it. With the car charger I can stream music with spotify, use the GPS, have the screen on full brightness and the battery % will still go up.
I also bought a new wall charger recently, which is 850mAh on the USB port and has a 350mAh charger for a loose battery as well, works quite nice.
Has anyone measured the voltage or put a scope on the output of the stock charger?
maybe stock charger has a slight variance in voltage over USB chargers or some signalling going on and this tells the N1 to take more current from it?
I would like a solution to this too I've seen my phone discharge while on a supposedly 1A car charger using co-pilot.
SBS_ said:
I have a 900mAh car charger that I use and it does in fact give 900mAh to the phone while charging. I can tell because I used a 450mAh charger at home before and it was slooow and I could drain my phone while charging it. With the car charger I can stream music with spotify, use the GPS, have the screen on full brightness and the battery % will still go up.
I also bought a new wall charger recently, which is 850mAh on the USB port and has a 350mAh charger for a loose battery as well, works quite nice.
Click to expand...
Click to collapse
Forget the numbers on the chargers - what counts is what really goes into the phone and that needs to be measured with a current meter (test equipment). What you may think to be fast might not be that.
Original HTC chargers obviously do the trick of fast charging but this comes at a price compared to the $3-$4 garden variety on Ebay and the likes.
now I cannot help you with the electronics at all, but, my old HTC Touch Pro charger seems to charge the same as the one which came with the phone, is this correct?
(suits me if it is, as then I have a charger for home and work)
my blackberry bold 2 charger only says it outputs 700MAh, but both the google and htc chargers both say 1.0A
dnts said:
Forget the numbers on the chargers - what counts is what really goes into the phone and that needs to be measured with a current meter (test equipment). What you may think to be fast might not be that.
Original HTC chargers obviously do the trick of fast charging but this comes at a price compared to the $3-$4 garden variety on Ebay and the likes.
Click to expand...
Click to collapse
Yes, it is just anecdotal evidence as I don't have any equipment to measure it. But my phone no longer discharges when I use it while charging, which it used to do with the old charger I used. So while I can say for a fact that the charger I use now is faster, I can't say by how much (this goes for both the car charger and the one I put in the wall socket).
I ordered this charger a few weeks ago and it charges my phone as fast as the original charger. The label says 5v / 1200mA.
Genuine Nokia Mini AC-10U US Type AC Charger (100~240V)
$7,25 and free shipping. (Takes a while before you get it tho.)
GazzaK said:
now I cannot help you with the electronics at all, but, my old HTC Touch Pro charger seems to charge the same as the one which came with the phone, is this correct?
Click to expand...
Click to collapse
HTC Touch Pro = mini USB
Nexus One = micro USB
Not an engineering here, but I am guessing the phone not always drawing more than 500ma may be is to do with the charger itself.
There is this "fast charge" USB standard where a wall plug has the USB data pins shorted to indicate that it is a wall plug and hence the phone knows when to draw more power. So even if the charger is rated 1A, the phone might not know if it could utilize that if those pins aren't shorted. Try doing a quick Google on this ....
If someone can test if the stock charger that came with the phone in fact does have those pins shorted that would confirm part of this theory.
For all practical purpose - I used two cables/plugs with a bench adjustable power supply. Simple micro USB plug would only let me draw 450mA regardless of power supply voltage in the range 4.5-5.5V. Tried shorting data pins - nothing. Tried shorting spare pin to VCC or GND or any of the other pins - nothing.
Used original cable and plug - draws 900mA at voltages from 4.9-5.5.
So it's in the plug somehow.
Tried (very difficult) to see if the pins on the plug are shorted and all 3 spares (except for 5V and GND) seems unconnected.
Next step is the irreversible hot knife...
I'm bugged by this, too. I tested with my desktop dock connected to my car charger (which states 1000 mA): it loads slowly and my battery widget reports USB- instead of AC-charger.
Might it be that the phone tries to load more than 1000 mA at the beginning to be sure that it doesn't overload the charger? And if that fails, it falls back to 500 mA?
Could N1 use a simple logic of:
- always watch the voltage
- start drawing 500ma (or whichever is the lowest current as per USB spec)
- increment in say 50ma steps
- if voltage drops below 4.x V, back off and stay at that level
I just did a little test of my own. I have a Palm Pre car charger (actual Palm brand one labeled as 1000ma output) and I plunged my N1 into it on my way home from work. In twenty eight minutes, my battery went from 47% to 70%. Much faster than plugging into my computer, which is 500ma max. I don't have any fancy test equipment, and don't claim to know a whole lot about electronics, but seems pretty fast to me.
I have a 4-port 2A 5v USB charger, and connecting it to my Nexus OR Milestone with a MicroUSB cable (the one that shipped with either phone, or the one from my Kindle) yields painfully slow charging - it basically won't charge if you are using the phone.
Connecting the Nexus One charger yields fast charging on either phone - so it is not HTC (or Motorola) proprietary.
The Milestone comes with a 900mA USB plug, and connecting THAT to either phone with either of the MicroUSB cables yields fast charging.
I have another aftermarket 2 port 2A 5V USB wall charger (brand: T'nB) AND I have an iPhone USB plug, and both give fast charging on the Milestone, and I have not yet tried them on the Nexus One.
Breakdown (on things I've tried):
FAST CHARGING on Nexus One AND Milestone:
Nexus charger (either in the US (110v/60hz) or in France (220v/50hz) through an adaptor)
Milestone wall French USB plug (which I think is something odd like 850mA at 5.9v) with ANY microUSB cable (in fact, it seems to charge both of the phones faster than the stock Nexus One plug)
SLOW CHARGING on Nexus One AND Milestone:
USB plug on computer
One aftermarket 4 port 2A 5V USB charger (NOT a hub, only a charger)
FAST CHARGING on Milestone, untested with Nexus One
T'nB 2 port 5v 2A USB wall charger
Apple iPhone 1 port 1A 5v USB wall adaptor
Seems found the answer for Fast Charging N1
I had just do some test for Charging N1 With Original AC Charger , Other band USB Charger and PC USB charger.
1. Orginal Charger give N1 from 0% to 100% at about 2 hour and something.
2. The other band AC charger and PC USB Charger can only finish the same job over 5 to 6 hours.
The Fast Charging is Due to 5.1V (Measured at N1) and 5.2V(Measured inside AC charger). 0.1V Drop is due to resistance of USB cable.
The Slow charged is due to 4.8V (measured at N1) and 5.0V (measured on PC USB and Other AC Charger)
i.e. Original Charger mod from 5.0 V to 5.2V (about 10% increase in Voltage)
Looks my theory is correct then ? N1 watches the voltage and if it droops too much, it backs off the current.
So the key would be: get a charger than can maintain at least 1A @ 5.2V, use
a decent gauge, short wire from the brick to N1.
Has anyone tried a Blackberry charger on the N1? Will they work to full capacity as well? (They're on Amazon for a fiver)
Because the nokia charger is working
http://pinoutsguide.com/CellularPhones-Nokia/micro_usb_connector_pinout.shtml
see info under table.
I tested also HP charger + standard USB cable delivered with Nexus, and it is charching cca 1A.
Then I tested one noname Carcharger + standard USB cable delivered with Nexus, and also charging cca 1A.
I dismantle the noname carcharger and here is a result:
data line (pin2+3) is shorted and connected do + (pin1 ,Vcc) thrue resistor cca 630kOhm.
1 - 4 = 5.1V
2,3 - 4 = 3.2V
rashid11 said:
Looks my theory is correct then ? N1 watches the voltage and if it droops too much, it backs off the current.
So the key would be: get a charger than can maintain at least 1A @ 5.2V, use
a decent gauge, short wire from the brick to N1.
Click to expand...
Click to collapse
I try to use power supply 5.2V 2A with cable without dataline (pin 2and3 not connected) and it is charging 480mA only.
I have now tested with an HTC car charger for the HD2. It's fast charging (tested with Waze running, two bluetooth connections and playing mp3 - and it's still loading the battery, whereas before it would be stuck at the current percentage) and even shows AC power instead of USB.
I've buyed an auto charger capable of 2100 mAh, but with gps and data connection active, however, the battery drains quickly.
Can anyone help?
Flash android 2.3.4 and ti'll fix the battery drain bug which is a problem in 2.3.3
shad0wboss said:
Flash android 2.3.4 and ti'll fix the battery drain bug which is a problem in 2.3.3
Click to expand...
Click to collapse
Ok, i've flashed the 2.3.4. I the next days will try the behaviours.
Any news? have you tried?
The battery charging so slow. It may take more then 4 hour for full charging. Can this problem solved after flash to 2.3.4?
With the new rom 2.3.4 flashed, the battery consume seems to be much linear than before, moreover maybe i've find the solution in the usb cable used in the car: a quick test by using the original usb cable with gps and data connection active has incremented the battery charge by 1% in a 10 km path.
Maybe the original cable has some special terminals configuration?
More extensive tests in next days.
Any improvement of charging time required after flash with 2.3.4 rom?
mynewuser said:
Any improvement of charging time required after flash with 2.3.4 rom?
Click to expand...
Click to collapse
does not seem...
I know this problem from my HTC Desire, it's was the same and the reason was that a orig. charching cable from HTC had a special pin which says the phone to charge like ac with full power and not only usb power! You can check this in the menü. There is an entry for charching which says "AC" or "USB" charching. If it shows "USB" it goes very slow! But i don't know that there is a special charching cable for car charching from samsung available too.
Where is the menu entry that shows if is charging USB or AC?
Thanks
Hi,
You will find it there:
Settings -> (telephone) Status -> Battery Status
There it says charging AC or USB
With AC it charges with full power, with USB it charges with 500mAh only -- which is not enough power for GPS and Screen on.
(At least it's like that with HTC devices)
I have a HTC Legend -- my solution to this problem was to short-circuit the Data pins in the Micro-USB-Port of the Car-Charger.
The Original HTC-AC->USB Adapter also has the Data-Pins Short circuited.
If you buy the HTC Car-charger you will geht a special USB-Cable that only works for Charging and not for Data transfer.
So HTC Devices recognize the Original charges by detecting the short-circuited Data pins.
I don't know if it's the same with Samsung devices!
I hope it helped you a bit!
Any link on how to connect the circuited Data pins?
Yes, probably a connection scheme would be useful.
I bought today a car adapter with 1000 mah Power and micro usb port. It charges with "AC" shown in the system
It was very cheap only 10,- EUR from Germany Company "Hama" a great hardware
Yesterday i've tried with another cheap charger, and AC charge is here, by using the same cable of 2100 mAh charger.
So my conclusion is that the trick is in the charger port, not in the cable.
By searching on google, seems that the two central pins need to be short-circuited...
Hello everyone, I hope my English is understandable.
To avoid damaging the cable, I have modded the charger.
Generally the chargers are very simple to dismount: simply unscrew the ring that holds the spring and the fuse and remove a couple of screws.
Usually the data pins are soldered on the circuit board only for mechanical reasons (increase the endurance of the connector), but they are connected to nothing. Short-circuit the data pins with a solder, directly on the circuit board.
Now i see AC charge.
My old Toshiba TG01 required the same trick.
mom4751 said:
Hello everyone, I hope my English is understandable.
To avoid damaging the cable, I have modded the charger.
Generally the chargers are very simple to dismount: simply unscrew the ring that holds the spring and the fuse and remove a couple of screws.
Usually the data pins are soldered on the circuit board only for mechanical reasons (increase the endurance of the connector), but they are connected to nothing. Short-circuit the data pins with a solder, directly on the circuit board.
Now i see AC charge.
My old Toshiba TG01 required the same trick.
Click to expand...
Click to collapse
Good! I will try myself.
Anyone try this modification? Can it work?
http://winhlp.com/node/855
I just wanted to share the chargers I use to everyone.
I have no problems with battery life mainly because I carry at least one charger with me everywhere I go.
Currently, I'm using 3 chargers. Sometimes I carry all 3 with me.
1. The Ultimate Charger
2. Monaco Solar Charger
3. TMobile Battery Boost
Anyway...
1st charger. Nice and simple. USB Charger that can plug into an outlet to charge your phone through a cable. Bonus is a builtin 1340mAh battery. Not enough to fully charge the phone, but it definitely helps me out a lot. Always helpful to have a outlet charger that can store some battery.
2nd charger. A common solar charger for the situations where I'm always out in the sun. Not much to say about this. Free energy is always a nice thing right? 1800 mAh battery too.
3rd charger. My latest addition to my charger family and quickly becoming a favorite. Builtin USB and MicroUSB cables now makes it so I no longer need to carry out even my retractable cables. 1700mAh battery inside. I think of it as a charging cable with a battery inside. Lots of uses for this. I can just plug 1 end to a computer and another end to my phone to charge my phone if the battery inside has run out. Charger just became a simple cable replacement. Or unplug phone and it'll charge the charger instead.
What's nice is how it can be used with the other two chargers. Say I'm no where near a computer, all my chargers are dead, but there's an outlet. Plug the 3rd charger into the 1st charger and have the 1st charger in an outlet. It'll charge the 3rd charger or my phone if that's connected to my phone. Replace 1st charger with the 2nd charger if I'm no where near an outlet but its a sunny day at a nearby park. Able to use the 3rd charger as a cable between the solar and my phone or just use it to charge my stuff.
Think I'm starting to repeat myself, but yes, those are the chargers I use and I don't have any battery problems.
Sorry, I never proofread or format what I write.
I'm looking for more chargers to use. Thinking about a good kinetic charger. Any recommendations?
I prefer the #2. Monaco Solar Charger.
Hi,
My TF101 won't charge anymore. The original charger stopped working a while back, which is when I first switched to a 12v 1.5a charger with USB tip from Radioshack. ---Insert long story about using the charger last night to charge a drill battery and possibly shorting some wires in bad ways---. I just bought a brand new adapter from Radioshack. Plugged in my tablet, the battery charging icon pops up for a second then goes away and there are no other signs of charging. Same thing happens when I plug it into one of my computer's 12v rails (similar to this). I think it might be trickle charging, but I haven't yet left it alone for more than an hour or so. Same thing happened when I plugged it into a 19v laptop adapter (swapped out the barrel tip with my USB tip). The USB tip is a single unchanged variable in all of these tests, but when I was at Radioshack I quickly tested the new adapter with a new tip, and it did not work, so I don't think the USB tip is the problem, but maybe. A multimeter shows correct voltage from both adapters and computer. I can't seem to get any reading from the female USB tip plug, but I also don't know where the put the meter leads, when I put them both inside the plug I got some sparks so I stopped.
Could there be something wrong with the tablet itself?
Thanks,
Marc
Edit: Or how can I test the 30-pin connector that goes into the tablet with a multimeter?