webOS Nation Forums > webOS smartphones (Pre, Pixi, Veer) > webOS smartphone accessories > Touchstone - List of Working 3rd Party Power Adapters
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Member: ncoffman
at: 09:12 AM 06/16/2009
I can confirm that the touchstone runs off of this car->usb adapter (can't link yet)

Amazon.com: Griffin iTrip Universal FM Transmitter and Charger for MP3 Player ($8, good price)

Edit: Just a USB port, so still used the Palm Pre USB cable.
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Member: creativemeat
at: 12:29 PM 06/16/2009
I returned my Belkin micro usb car charger and purchased the official Palm usb car charger which by the way includes a charging cable. I can confirm the touchstone charges. I was getting atleast 1% every minute without using the pre. Even while using sprint nav the pre was able to charge.

One small issue. The charging tone would replay every now and again as if the phone was removed from its charger.
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Member: gostate
at: 09:09 PM 06/16/2009
I think I've found the difference between the chargers that work, and the chargers that don't. I've detailed it a separate thread in the accessories section called " USB Cable Mod for generic USB adapters and Touchstone Dock". (I'd link to it, but don't have enough posts yet)

In short, the chargers that work short pins 2 and 3 of the USB connector to communicate to the device that they can supply higher current than normal USB.
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Member: NickDG
at: 10:37 PM 06/16/2009
Thanks for the info gostate. This makes perfect sense.

I updated my original post with the list. Lets keep them coming.
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Member: casonbang
at: 11:45 PM 06/16/2009
Here is the thread with more info on what specs the charger needs to meet:
http://forums.precentral.net/showthr...63#post1685380

Basically it needs to support the USB Battery Charging Specification.
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Member: JC Strat
at: 11:58 PM 06/16/2009
Just FYI - the Motorola SPN5400A OEM goes for about $3.75 through amazon.
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Member: creativemeat
at: 07:14 PM 06/17/2009
Originally Posted by creativemeat:
One small issue. The charging tone would replay every now and again as if the phone was removed from its charger.
Ha. Well, turns out, whenever I use my left blinker or turn on my headlights, there's an instantaneous stoppage of power to my outlet. My car's electrical wiring (or fuses?) has always been odd.
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Member: smartphone
at: 03:12 AM 06/18/2009
Did we come to a conclusion that we need a car charger that does .85A vs. 1.0A
Even if the .85A ones work, does it charge slower?

It even looks like the "sprint" car charger has different ones. ones that say they are for palm, and ones just for palm pre. Anyone know if they are different and if one is .85A vs. 1.0A?

Is the motorola recommended above .85A or 1.0A?
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Member: NickDG
at: 03:46 AM 06/18/2009
I just ordered the Motorola charger from Amazon.

smartphone, gostate figured out that the charger has to be capable of telling the Pre/Touchstone that it can supply extra current. This is why some adapters aren't working even when rated at 1 amp.
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Member: boston_ant
at: 10:20 PM 06/18/2009
I found the Sprint Palm Car Charger on eBay for like 10 bucks w/ shpng. ($31.99 in store)

http://cgi.ebay.com/NEW-OEM-Sprint-P...3%3A1|294%3A50

Would you trust these? Any cautions about buying these types of things from eBay? Price is cheap enough to take the risk? Legit?
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Member: northward
at: 10:37 PM 06/18/2009
I'm disappointed to say that Seidio's "High Output" car charger High Output Car Charger doesn't work, even though it's rated at 5V/1A. It does the "charge on, charge off" dance when used in the Touchstone.

Those using the Motorola SPN5400A, that's the one that lights up blue, right?
Motorola Orignal SPN5400A 89143N MicroUSB High Performance Car Charger (SPN5400) at AGT Battery Supply- BatterySupplier.Com

I really hate the thought of spending $30, but if I end up trying a couple more and failing I'm up to $30 anyway.
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Member: NickDG
at: 03:47 AM 06/19/2009
Originally Posted by northward:
I'm disappointed to say that Seidio's "High Output" car charger High Output Car Charger doesn't work, even though it's rated at 5V/1A. It does the "charge on, charge off" dance when used in the Touchstone.

Those using the Motorola SPN5400A, that's the one that lights up blue, right?
Motorola Orignal SPN5400A 89143N MicroUSB High Performance Car Charger (SPN5400) at AGT Battery Supply- BatterySupplier.Com

I really hate the thought of spending $30, but if I end up trying a couple more and failing I'm up to $30 anyway.
It's 6 bucks on the link you posted.
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Member: northward
at: 08:57 AM 06/19/2009
Originally Posted by NickDG:
It's 6 bucks on the link you posted.
I should've been more clear, I hate the thought of spending $30 on the Sprint branded charger.
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Member: realistdreamer
at: 10:49 PM 06/20/2009
OK, I now have more chargers/wires/cords for my collection. For the car, I bought the moto SPN thingy and it did the on/off dance with Touchstone. The others I have from a variety of sources work via USB, but not Touchstone. I finally went and bought the Palm car charger. Touchstone recognizes it, but then I read it won't charge fast enough to handle Pandora and a phone call. That bites because Pandora IS my car stereo right now. I have a Sprint one on order, but I'll be having a charger garage sale soon.
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Member: northward
at: 11:09 PM 06/20/2009
Damn. Collection of chargers? Welcome to my world. I've got the Moto 5400 on order after trying the Seidio High-Output one. I should've just bought the Sprint one in the first place.
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Member: JC Strat
at: 12:04 AM 06/21/2009
The Motorola OEM SPN5400A that I got through Amazon does not charge the Pre via the Touchstone for me.

I have tried two different vehicles.

When I plug the SPN5400A into the Touchstone and attach the Pre, the "Charging" indicator on the Pre kicks on and off every second or two. If volume is on, the Pre is spastically dinging the "charging" notification.

Photo of this charger is attached.
Attached: Charger.jpg (48.4 KB) 
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Member: bulls96
at: 01:57 AM 06/21/2009
Originally Posted by JC Strat:
The Motorola OEM SPN5400A that I got through Amazon does not charge the Pre via the Touchstone for me.

I have tried two different vehicles.

When I plug the SPN5400A into the Touchstone and attach the Pre, the "Charging" indicator on the Pre kicks on and off every second or two. If volume is on, the Pre is spastically dinging the "charging" notification.

Photo of this charger is attached.
can anyone comfirm this? was about to buy this one...
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Member: majorhavoc
at: 02:13 AM 06/21/2009
Do you guys think this wall charger will work with the Touchstone?
Amazon.com: Palm Treo 800w Travel / Home Charger (V8): Everything Else

Thanks!
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Member: realistdreamer
at: 01:15 PM 06/21/2009
Originally Posted by bulls96:
can anyone comfirm this? was about to buy this one...
Yes, the moto did the on/off thingy with my touchstone. I gulped and paid $30 for the Palm one at BB. It works, but remains to be seen how fast it charges.
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Member: metsfan
at: 01:49 PM 06/21/2009
Kindle 2 Charger: Amazon.com: Amazon Kindle Replacement Power Adapter (fits 2nd Generation Kindle and Kindle DX): Electronics

Rated at 5V, 0.85A. Works great with the Touchstone.
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webOS Nation Forums > webOS smartphones (Pre, Pixi, Veer) > webOS smartphone accessories > Touchstone - List of Working 3rd Party Power Adapters