Hi anyone can help me here,
I need to know what is the voltage and current for charging a xda2. I am looking at modifying a nokia phone car charger to charge my xda2. From what i have read, it the output 5V and 2A (i took this from the cradle) but can the current be lower than 2A to charge. Thanks.
I do not know how you could do this, but have you tried this?
http://www.pdamods.com/proddetail.asp?prod=XDACC
It is a car charger and sync cable in one, so looks like good value..
5-6V, 500 mA should do it.
Just take care you use the correct polarity on the connector.
Car charger for XDA2
Why bother? Standard O2 USB sunc cable is only £12 from eXpansys and will charge the XDA from any powered USB port (eg your laptop/desktop) and you can buy generic cig lighter USB adapters for about £8. No risk, no hassle
Re: Car charger for XDA2
stephen_oliver said:
Why bother? Standard O2 USB sunc cable is only £12 from eXpansys and will charge the XDA from any powered USB port (eg your laptop/desktop) and you can buy generic cig lighter USB adapters for about £8. No risk, no hassle
Click to expand...
Click to collapse
Because there are always people who like to experiment.
And why throw something old away if it can be adapted for something new with minimal effort?
Good answer!!
Good answer!!
And you keep £20 in your pocket! 8)
o2xda2 said:
Hi anyone can help me here,
I need to know what is the voltage and current for charging a xda2. I am looking at modifying a nokia phone car charger to charge my xda2. From what i have read, it the output 5V and 2A (i took this from the cradle) but can the current be lower than 2A to charge. Thanks.
Click to expand...
Click to collapse
Yes it can. All the old XDA stuff was only 1A. A USB port (powered without external power) is in the region of 500ma.
The only thing with lowering the current is that tha XDA2 is sensetive to discharge.i.e. less than 25% battery power and it wont charge via USB!!
Hope this helps.
Re: Car charger for XDA2
stephen_oliver said:
Why bother? Standard O2 USB sunc cable is only £12 from eXpansys and will charge the XDA from any powered USB port (eg your laptop/desktop) and you can buy generic cig lighter USB adapters for about £8. No risk, no hassle
Click to expand...
Click to collapse
Thanks all for the help. I think my only answer to not spending the dollar is more towards wire management. My current charger wire is retractable and when i am not using it, it retracts back and keep the dahboard clean & neat. As i charge my BT and also xda2 in my car, the number of wires sticking out is quite messy. Not sure if all has the same problem but it's just me wanting to be neat.
:roll: :lol:
The only thing with lowering the current is that tha XDA2 is sensetive to discharge.i.e. less than 25% battery power and it wont charge via USB!!
Click to expand...
Click to collapse
Hi Pete... Well... i don't think this is the case... pls look at this post
... i've got the solution to the non-charge bug... the XDA II will charge regardless of the battery level...
Best regards,
Hi
The charger that came with my HTC P3600 says 5V, 1A. However most of my other miniUSB chargers which I use with a I-mate JAMin & K-JAM say 580mA or 500mA. I also have some adapters for the HTC P3600 which would allow me to plug in one of these miniUSB chargers. The question is should I? Would it make any difference? In case you're wondering why I would want to do this, its because I have a charger at work, home, girlfriends, in the car etc. And I would rather have a few adapters than shell out for loads more chargers. Thanks for listening!
Well, the Amp on your charger is how much Juice it can deliver.
So as far as I can guess you would have 2 scenarios, 1 is it will work but it will charge your HTC slower, or second option is that the charger will overheat.
I bought a usb to car adapter recently for my ameo, and still, power is being drained from my pocket pc when i run tomtom.
Is it the charger?
its been brought up before somewhere, the athena's wall charger is 1amp, car chargers and usb are lower, usb only being 500ma, so it takes longer to charge but using the car charger the battery should last a lot longer.
you need one of the pocket pc techs mini 5 adapters
without one, using an amp meter, my athena pulled 350-400 ma off of any charger i hooked it to (using usb cable).. wall charger, car charger, computer usb didnt matter.
using the ppc techs adapter... upped the draw to 750-775 ma, it charges 2x as fast, and more importantly, doesnt run down the internal battery in the car, while running tomtom.
I got that trouble with my old charger coming from Mitac Mio A701 since gives me 500 mA. I got the HTC car charger at Expansys (original HTC charger for car) and gives me 1 A... and now I got no trouble. I can use Tomtom all the way home full screen bright and HDSPA with Blackberry Connect working and the X7500 still charges.
So got a 1 Amp car charger. I got the HTC one because someone told me the pinout is different and use the 5th pin to run quick charge. I cannot confirm that... sorry, but I got the HTC and works.
Does anybody know what the power output specification for car charging is for the Tilt? The wall charger puts out 5v and 1mA, but I haven't figured out what car charger is necessary. Internet sites all list different outputs including the 5v and 550mA which is the same for the Razr.
I don't want to use one that will damage the phone. Will the 550mA work but just not as fast, or can it damage the phone?
I have been trying to read other posts on this subject, but none are conclusive.
I just bought a car mount but it came with the 550mA charger and they are giving me a hard time about it.
I also notice that the usb port which charges the phone only puts out a maximum of 500mA. I just don't know much about electrical stuff and I am hoping to get some insight from you all.
All I know is that I am using Moto chargers for my phone and they're working.
I use Moto chargers and they work fine, just not as fast.
Thanks guys.
My Defy is extremely picky when it comes to charging.
I tried a few different power adapters. All run at the standard 5V used by all USB ports. The only variable is the current.
The power adapter shipped with my Defy spits out 850 mA and apparently my phone doesn't like to eat any other current. With a 500 mA adapter my Defy won't charge at all. That's strange, because it charges fine when connected to my computer, and those USB ports max at 500. At 1000 mA my Defy charges OK, but the screen becomes hypersensitive. Just moving my fingers within 10 cm from the screen is enough to scroll, make icons believe they're tapped, and make the phone do all kinds of random stuff. Spooky!
My other phones all charge fine at 500 mA, 800 mA (default Nokia charger current), 850 mA, and 1000 mA. They don't seem to care about the current at all. Same for my camera with a microUSB port. Any current from 500 to 1000 mA works. Only my Motorola Defy is playing difficult and insists on 850, not more and not less.
Does this mean that there's something wrong with my Defy or is this deliberate sabotage by Motorola to stop us from using competing power adapters?
Mine charges off the Motorola one, a Sony Ericsson one, a ZTE one, a cheapo Tesco one and off the PC USB ports. The output of the charger will only effect the charge time.
Right now charging mine off my Kindle a/c charger. Seems to work.
Of course the Kindle adapter works. Its output current is 850 mA, just like Motorola's own adapter.
Did anyone ever try to charge a Defy with a 500 mA or 1000 mA adapter?
It wont work with chagers which are being made for other phones
http://forum.xda-developers.com/showpost.php?p=13871623&postcount=49
800mA current
Even an 800 mA charger won't work? That sucks. Why did the phone manufacturers agree on microUSB as charger port standard?
Fortunately my cheapo 1000 mA adapter works, as long as I keep the display switched off during charging.
Hey my Old Samsung phone's charger 0.55A(4.75V) works best! charges faster than moto's charger! Bdw switching chargers isn't good for Batt life i read this sumwhere....
use moto charger!
It's the max output the charger can sustain. Just like the specification on electrical socket, fuse, cable etc. So it doesn't matter as long as it is not exceeded.
It works with SonyEricsson charger but not the one for HTCLegend
I have not experienced any problems with charging from a variety of adaptors. However I do have a couple of the portable li-on battery backs, they seem to have enough juice to recharge/power PSP and DSLite, but can't supply enough current to charge Defy or my San Francisco.
Does anyone know of any reasonably priced portable power packs that can do the job?
On my defy I've used my gf's HTC Desire charger (1A), and it was all good, no hypersensitivity. But I remember I bought a cheap no-name charger for my itouch and when I was charging it, there were similar issues you said.
i'm using my nokia E66 data cable in lieu of my motorola cable to charge my phone. no issues
rogier666 said:
My Defy is extremely picky when it comes to charging.
I tried a few different power adapters. All run at the standard 5V used by all USB ports. The only variable is the current.
The power adapter shipped with my Defy spits out 850 mA and apparently my phone doesn't like to eat any other current. With a 500 mA adapter my Defy won't charge at all. That's strange, because it charges fine when connected to my computer, and those USB ports max at 500. At 1000 mA my Defy charges OK, but the screen becomes hypersensitive. Just moving my fingers within 10 cm from the screen is enough to scroll, make icons believe they're tapped, and make the phone do all kinds of random stuff. Spooky!
My other phones all charge fine at 500 mA, 800 mA (default Nokia charger current), 850 mA, and 1000 mA. They don't seem to care about the current at all. Same for my camera with a microUSB port. Any current from 500 to 1000 mA works. Only my Motorola Defy is playing difficult and insists on 850, not more and not less.
Does this mean that there's something wrong with my Defy or is this deliberate sabotage by Motorola to stop us from using competing power adapters?
Click to expand...
Click to collapse
I have a similar problem as you.
I think the Defy only charges with 500 mA to maybe 1000 mA. I can charge my Defy with any PC and Tablet USB ports, a Nokia AC charger and a couple of car USBs with 1A output. However, it won't charge with 2 other car USBs with 2A output. I measured the voltage of these two and they are good, at around 5.2 to 5.3V.
I was hoping to find a higher capacity car charger because I am using my Defy as car camcorder, and 1A simply cannot supply the current needed!
My defy can be charged with an htc 1A charger as well as a 500mA samsung charger. But it refuse to charge from no name cheapos.
Sent from my MB525 using Tapatalk
Tried a new adapter, made by Sony Ericsson. 5.0V, 850mA, exactly the same output as Motorola's own power adapter. But the SE adapter has the same problem as the no name adapters I tried: they charge my phone, but I need to keep the screen locked 'cos the adapter makes it hypersensitive.
So it must be my phone. For some strange reason it doesn't like it when I use any other adapter than the one that came with the phone.
I wonder if its refusal to work with non-Motorola adapters is a reason to get my Defy fixed under warranty...
The problem you guys are facing is not related to the current, but to the pins used by the cable in the USB interface.
The defy will only charge if it is connected with a full USB connection.
Not all the USB cables come with all the pins, I for example have one for my Bluetooth headphones that only has power and it does not charge my defy but it does charge my hd2.
Gesendet von meinem CM7 Defy
The problem persists when I use the Motorola cable with a non-Motorola adapter.
When I use the Motorola charger adapter together with non-Motorola USB cables my phone charges OK.
So the problem has nothing to do with cables and pins.
rogier666 said:
The problem persists when I use the Motorola cable with a non-Motorola adapter.
When I use the Motorola charger adapter together with non-Motorola USB cables my phone charges OK.
So the problem has nothing to do with cables and pins.
Click to expand...
Click to collapse
It has to do with cables and pins.
If your cable has all the pins (normal data USB cable) but your adapter doesnt have them connected is the same thing as having a USB cable with only power pins.
Check out cables diagrams to see how them work.
There is even a hack for some HTC phones, where you actually short some pins on the cable so the phone think it is connected to a wall charger and not a USB port, allowing the phone to use more than the 500 mah the USB can provide (useful for car adapters).
This is fact, I'm not pulling it out of anywhere hehe
I charge both my Defy and the HD2 with the same HTC charger, and I have a extra USB portable battery, which charges the HTC but it doesnt charge the Defy, both are running CM7.... the issue? the danged chinese battery only has power pins and the phone refuses to charge from it @[email protected] it does charge my Bluetooth Headphones and the Camera
My non-Moto 1000 mA and 850 mA adapters make my screen go wild, but they charge my Motorola Defy.
If it was a cable/pin issue they wouldn't charge my phone at all.
If I plug my knockoff 500 mA adapter in my Nokia USB port (which is for data only, not for charging) my old Nokia pops up a "USB data connection detected" message.
Not all charger issues are due to cables and pins. Sometimes its the output voltage and current that messes things up.
rogier666 said:
My non-Moto 1000 mA and 850 mA adapters make my screen go wild, but they charge my Motorola Defy.
If it was a cable/pin issue they wouldn't charge my phone at all.
If I plug my knockoff 500 mA adapter in my Nokia USB port (which is for data only, not for charging) my old Nokia pops up a "USB data connection detected" message.
Not all charger issues are due to cables and pins. Sometimes its the output voltage and current that messes things up.
Click to expand...
Click to collapse
I know not all issues are related to the cable and pins, but this specific issue with the Defy not charging is.
Both your chargers comply correctly with USB charging standards then.
Notice this also happens on the Droid, and shorting both Data pins allows the phone to charge. And can be read on the forums that it works too with the iPad
Anyways, here is what happens to the defy:
http://en.wikipedia.org/wiki/Universal_Serial_Bus
"There are also devices at the host end that do not support negotiation, such as battery packs that can power USB-powered devices; some provide power [...]. USB power adapters convert utility power [...] to run attached devices. Some of these devices can supply up to 1 A of current. Without negotiation, the powered USB device is unable to inquire if it is allowed to draw 100 mA, 500 mA, or 1 A."
There you go, no Data pins = Defy do not draw power, not charging.
I would like know if it charges shorting Data pins tho.
All that is required is short both Data pins with each other, doesnt matter if its on the cable or the charger.