Develop Bugs

Charging Requirements

Does anyone know what the power requirements are/will be for the XOOM? I expect it to have a good battery, but I still want to set up or simply buy a solar charging system for when I am not home. I might utilize the barometer to try geocaching.
Also, will it be trickle chargeable over USB?

I have the same question on USB charging. We know it has its own AC charger and special port. I asked on another forum this question and will post back if I hear anything.

Xoom manual is out on the web and it clearly states no charging via USB.

Gamul1 said:
Xoom manual is out on the web and it clearly states no charging via USB.
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I guess the question now is what is the voltage of the charger. It has a car charger so the voltage is hopefully not high. I want to be able to charge it with my 6.5w solar panel.

Gamul1 said:
Xoom manual is out on the web and it clearly states no charging via USB.
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So how do you charge this thing in your car?

blk98gt said:
So how do you charge this thing in your car?
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If you have not yet tried the iGo tips/chargers, I strongly recommend you consider. Instead of a gazillion chargers, you change the tip. I picked up one for my laptop that works both in my car and house. It came with tips for almost every laptop imaginable so I can let others charge in my car, too. I am guessing one of my laptop tips might work for the xoom. Also the laptop charger has a USB port so I can charge my laptop and a device off so USB at the same time.

It would seem 5V would be the norm. Its the amperage that I am wondering.
We know the ipad in which this tablet draws its battery comparison uses 5V and 2.1amps.
We will find out soon enough
Sent from my PC36100 using Tapatalk

The charger is a 12V 1.5A charger. The tip is not a common one; definitely small and looks like it will break easily. I hope decent options come soon for using the contact dots.

JanetPanic said:
The charger is a 12V 1.5A charger. The tip is not a common one; definitely small and looks like it will break easily. I hope decent options come soon for using the contact dots.
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I wonder why they went with this kind of connector. Too bad they didn't spend the money to include some kind of inductive charging system. It wouldn't have increased the cost of the tablet that much, maybe $10 in parts.

I just checked EBay and I found combo silicone case + "micro USB car charger" for the xoom. I wonder if the car charger is legit.

Anyone bought a car charger yet? Motorola's is a bit pricey at $30.

Slimgym20 said:
Anyone bought a car charger yet? Motorola's is a bit pricey at $30.
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i didn't even know there was one... vz/bb didn't have it when i picked my xoom up. i have an inverter but might be good to leave charger at home and just use one in my car. link? 30 is a bit pricey, but in line with what they charge, usually you can get the same thing for 5 on ebay/amazon after a few months. link? all i see are usb car chargers.

diaa08 said:
i didn't even know there was one... vz/bb didn't have it when i picked my xoom up. i have an inverter but might be good to leave charger at home and just use one in my car. link? 30 is a bit pricey, but in line with what they charge, usually you can get the same thing for 5 on ebay/amazon after a few months. link? all i see are usb car chargers.
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Its just on their accessories page for the Xoom:
http://www.motorola.com/consumers/U...toid=8159a96331fec210VgnVCM10000081bbb00aRCRD

[Q] Real 2A car charger. Which one??

Yesterday I've been navigating again with Navigon on my SGS2, but unfortunately it slowly drains my battery. When using google maps it dous charge the phone. So apperently Navigon is using a lot more 'juice' compared to Google map navigation.
Do you people know a charger (I assume one of 2A, while my own charger is an 1A charger) which does charge the phone with bluetooth, gps and Navigon running?

I bough a 2.1A car charger from belkin and I still have battery drain.
Even with the phone detecting it correctly as AC CHARGEr.

Hmmm that's to bad
Ordered a 2A charger from ebay myself.... But I doubt it will work, especially after reading your message.
I think the phone only takes a maximum of Amps for charging, even though it uses more. Resulting in a slow battery drain.

Note that it will stopped charging if the battery gets too hot to avoid damage or possibly exploding the battery.
Obviously having a higher rated charger will heat the battery more, so make sure the phone has its back ventilated, and try avoiding direct sunlight.
Read of several people that had this issue, but got their phones charging when avoiding overheating it.
Sent from my GT-I9100 using XDA Premium App

Try the Rockfish premium charger. It's 2A and looks nice.
Sent from my GT-I9100 using XDA Premium App

has anyone had any luck with the motorola charger? I bought one for my nexus one + car dock and it always worked fine... have yet to have a chance to use it for my SGS2 though..

Mixy said:
Note that it will stopped charging if the battery gets too hot to avoid damage or possibly exploding the battery.
Obviously having a higher rated charger will heat the battery more, so make sure the phone has its back ventilated, and try avoiding direct sunlight.
Read of several people that had this issue, but got their phones charging when avoiding overheating it.
Sent from my GT-I9100 using XDA Premium App
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But that's a bit strange, because a charger should deliver what a phone is asking for. As far as I know, a charger doesn't push the charge to the phone. But we will see, if the phone does get overheated, then that will be the end of the charger.
malimal said:
Try the Rockfish premium charger. It's 2A and looks nice.
Sent from my GT-I9100 using XDA Premium App
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Do you have a link where it can be found?
mynameisjon said:
has anyone had any luck with the motorola charger? I bought one for my nexus one + car dock and it always worked fine... have yet to have a chance to use it for my SGS2 though..
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Which motorola charger?

Bart1981 said:
But that's a bit strange, because a charger should deliver what a phone is asking for. As far as I know, a charger doesn't push the charge to the phone. But we will see, if the phone does get overheated, then that will be the end of the charger.
Do you have a link where it can be found?
Which motorola charger?
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You're mistaken.
The thing that you plug into your car, that's called a power supply.
The real charger is built into the phone. That's the charging circuit that will shut down the charger, stop drawing power from the power supply when the phone gets too hot.
I doubt the phone will be able to take 2A, and the circuits will prevent the phone from drawing 2A of current.
#1. So, what you're looking for is actually a power supply that provides suficient current. Most car chargers will be about the same.
The power supply is connected to your phone via cables. Badly made cables will not be able to supply more than 200mah, and as a result you're going to take a really long time to charge your phone, and with a high drain application going on, you're not going to be able to charge your phone.
I had that exact same problem previously, and it was because of a lousy batch of oem cable I bought from ebay. Original, and other brands of oem cables worked fine.
#2. You need to buy some proper cables. I buy from www.monoprice.com, because I like my cables to be gold plated.
Edit: No, I'm not related to monoprice. I just love my gold cables plated heads. Can't find them cheaper anywhere else.

But the quality of the cable is not the only thing. The phone should also see the charger as an AC charger instead of an usb charger. This can be done by connecting the middle pins in the usb cable. Otherwise it will only charge with 500mA.

Bart1981 said:
Do you have a link where it can be found?
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i got mine off ebay, but its like this one below
http://www.bestbuy.com/site/Rocketfish%26%23153%3B+-+Premium+Micro+USB+Vehicle+Charger/1114106.p?id=1218221913668&skuId=1114106&st=Rocketfish%20Car%20Charger%20&cp=2&lp=1
make sure you get model RF-PMC55

Bart1981 said:
But the quality of the cable is not the only thing. The phone should also see the charger as an AC charger instead of an usb charger. This can be done by connecting the middle pins in the usb cable. Otherwise it will only charge with 500mA.
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Is there a car charger you can buy that does this automatically? (i.e phone thinks it's plugged into AC rather than USB). I'd rather not plug anything i've been messing about with into my beloved SII.

It's not about the charger but about the cable you're using.

[Q] Charging Cable

This is probably a dumb question but what kind of USB cable would I buy if I wanted an extra charging cable. I don't know what the phone side of the cable is called (USB mini ?) I know it is slightly different than my camera but really close.

u can use ur old vibrant one if u have one thats what i did for extra

pairustwo said:
This is probably a dumb question but what kind of USB cable would I buy if I wanted an extra charging cable. I don't know what the phone side of the cable is called (USB mini ?) I know it is slightly different than my camera but really close.
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Any Micro-USB cable will do.

Kawaisa said:
Any Micro-USB cable will do.
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Just be sure you know what you are buying. Some will be charge only cables, which means they can't be used as a USB to transfer data.
Sent from my SGH-T989 using xda premium

Towle said:
Just be sure you know what you are buying. Some will be charge only cables, which means they can't be used as a USB to transfer data.
Sent from my SGH-T989 using xda premium
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Ahh. Now I see why my camera cable wouldn't fit. I didn't think there would be another form factor that was so similar. (But then again the 2nd gen Kindle has it's own form factor USB port)
I don't think my camera is charge only but it does have a block where some of the pins would go and so won't fit the Hercules.

Goto monoprice.com. Order a crapload of them of varying lengths. Get ones with ferrit cores if you want, but not necessary. They might help with data integrity of data transfers. I find that they get in the way. But monoprice has inexpensive cables of high quality. Almost all around a buck. Fast delivery too.
If you are looking for usb power bricks, make sure they are 5 volt outputs. Do not skimp here as this could hose your phone if cheap electronics send bad voltage to your phone.
Sent from my SGH-T989 using xda premium

PorchSong said:
Goto monoprice.com. Order a crapload of them of varying lengths. Get ones with ferris's but not necessary. They might help with data integrity of data transfers. I find that they get in the way. But monoprice has inexpensive cables of high quality. Almost all around a buck. Fast delivery too.
If you are looking for usb power bricks, make sure they are 5 volt outputs. Do not skimp here as this could hose your phone if cheap electronics send bad voltage to your phone.
Sent from my SGH-T989 using xda premium
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There is no such thing as "bad voltage." All USB chargers are approx 5V but if it were a bad charger and was outputting 12volts or 1volt the phones charging circuity will handle it and either not charge at all or adjust accordingly. Bottom line is ANY USB charger will work (or not) but chances of it damaging the phone unless it was hitting it with 120VAC are very slim.

Lol this thread is probably making it more complicated for you. Just go on Ebay and search for micro USB cable and make sure it says charge/data. Most will have a phone manufacturer name in the title (HTC Samsung Motorola etc.) Any of them will work.
Sent from my SGH-T989 using xda premium

MisterEdF said:
There is no such thing as "bad voltage." All USB chargers are approx 5V but if it were a bad charger and was outputting 12volts or 1volt the phones charging circuity will handle it and either not charge at all or adjust accordingly. Bottom line is ANY USB charger will work (or not) but chances of it damaging the phone unless it was hitting it with 120VAC are very slim.
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Yeah, I've been using my iPad charger for the phone quite a bit. Works great. I'm set on chargers I just need more cables.

Longer MicroUSB charging cable

The microUSB cable is too short, and need a longer one. Will any of the long ones that pop up on ebay work fine or does it need to be a specific type of cable or something.
http://www.ebay.com/itm/3M-long-Mic...Accessories&hash=item231ed566ca#ht_2678wt_958
http://www.ebay.com/itm/Cellet-8ft-...Accessories&hash=item48461ce9f3#ht_1700wt_952
http://www.ebay.com/itm/3M-long-Mic...Accessories&hash=item231fb19fec#ht_2697wt_958
etc

http://www.monoprice.com/products/p...=10303&cs_id=1030307&p_id=5460&seq=1&format=2
Cheap and quality! Especially for 15ft. They have smaller lengths if that's too long for you....

art0605 said:
http://www.monoprice.com/products/p...=10303&cs_id=1030307&p_id=5460&seq=1&format=2
Cheap and quality! Especially for 15ft. They have smaller lengths if that's too long for you....
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Wow that's a great find.
Working well for you I assume?
Sent from my SPH-L710 using Tapatalk 2

fergie716 said:
Wow that's a great find.
Working well for you I assume?
Sent from my SPH-L710 using Tapatalk 2
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Absolutely! I got the 6ft ones with ferrite cores. But I am sure the 15ft ones are the same thing.

Longer cable cause greater power loss
i bought a kindle3 last year, and the cable is very long. When i use it to connect my phone to USB port on laptop, my phone can't be recognized

The one that came with the phone was to long for me. I switched to the one that came with my one x. I use the one x charger to it looks better made
Sent from my SAMSUNG-SGH-I747 using xda premium

bigdipper said:
Longer cable cause greater power loss
i bought a kindle3 last year, and the cable is very long. When i use it to connect my phone to USB port on laptop, my phone can't be recognized
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That is just a faulty cable.

Perhaps you can use an existing USB cable?
I've plenty of these from my past units - I find Nokia cables very well made
My N8 USB cable have locking clasps at the micro-USB side and works pretty well for fast charging
For longer cable needs I bring with me the charging cable of my Logitech K800 wireless keyboard
Great quality USB cable for charging and connecting to KIES or just plain transferring files

I have one white original for my kindle, but using it with gs3 charger, as it's twice as long...
Sent from my Galaxy SIII

I always look to monoprice.com for cables. You are guaranteed to get a high quality cable. You can get one shipped for maybe $1 more than those ebay cables.

Huge +1000 on Monoprice cables. They also have USB AC & Car power adapters. Super easy to stock up on extra cables & chargers.

Beknatok said:
Huge +1000 on Monoprice cables. They also have USB AC & Car power adapters. Super easy to stock up on extra cables & chargers.
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Never heard of Monoprice, I'll check them out. thanks

can you guys get the monoprice cables to work with the AC adapter?

actng said:
can you guys get the monoprice cables to work with the AC adapter?
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That's the whole point, to make the cable that came with the charger longer. That way one can lay in bed, charge, and use the phone at the same time.

SamsungVibrant said:
That's the whole point, to make the cable that came with the charger longer. That way one can lay in bed, charge, and use the phone at the same time.
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Yeah, I just wish (KICKSTARTER!) that someone made a microusb cable that didn't protrude so much from the end of the phone, making it a pain to hold comfortably in landscape mode. Even the right-angle microusb cables I have aren't good enough.
Somebody should really make one that sits flush against the phone, with some extra silicone padding along the base, so you can't even really tell that it's plugged in. It'd be a little pricier, being niche, but I'd buy it... and if marketed right, lots of others would too.

SamsungVibrant said:
That's the whole point, to make the cable that came with the charger longer. That way one can lay in bed, charge, and use the phone at the same time.
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so the length doesn't affect charging performance?

Do longer cables negatively impact charging?
actng said:
so the length doesn't affect charging performance?
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Good question, I don't know. Maybe someone else can chime in.
I can't decide between 6, 10 and 15 ft.
I was going to get the 15 ft until someone else mentioned the longer cables affect charging performance. I don't know if there is any truth to that.
Can someone who knows chime in please

I just bought two 15ft cables on monoprice for two bucks a pop. There's a lot of positive reviews, so my guess is that it works just fine
Sent from my SPH-L710 using xda premium

Totally off-topic but for everybody that buys cables from Monoprice, do you guys have free shipping code or something?
I know their products and prices are good. But it seems like unless I'm buying a lot of cables, the shipping doesn't justify the cost.

Charging isn't an issue over 6 feet, but if you're using it for data, don't go over 6 feet...
This is what I use. No issues.
Mediabridge - USB 2.0 A-Male to Micro-B Cable (6 Feet)

charger + cable for the oneplus 1

Just wanted to know what are specs for the charger/cable. I can get tons of aftermarket chargers for my ip4 at a buck or two at the most from asian sellers from asia. am I right that I simply need a 2a charger, with a mini usb cable at the end? just looking into getting extra for when they decide to release it to the public.

Here ya go

truckroot said:
Here ya go
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Sweet! thanks buddy.
cable is a regular mini or micro usb at the end?

rocketman122 said:
Sweet! thanks buddy.
cable is a regular mini or micro usb at the end?
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Micro. Ur welcome!

oneplus cable are specially made, I tried using third party cable, it will double your charge time from 2hours to roughly 4.5hours.

tpboi said:
oneplus cable are specially made, I tried using third party cable, it will double your charge time from 2hours to roughly 4.5hours.
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Haven't tried a third party one yet, thx for the heads up?

tpboi said:
oneplus cable are specially made, I tried using third party cable, it will double your charge time from 2hours to roughly 4.5hours.
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U tried oneplus charger and 3rd party cable? or u tried 3rd party charger too? maybe charger wasnt 2A capable.

carlesbc said:
U tried oneplus charger and 3rd party cable? or u tried 3rd party charger too? maybe charger wasnt 2A capable.
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Anyone tried to trace pinout yet? IIRC, I read somewhere 2 of the pins in the cable were shorted, signaling to the OP that it was to take quick charge. I'll try to find that. The same article / post discussed temp sensor limiting amount of charge since the OP would get hot. Not as quick as true fast charge, but faster than standard.
edit: found it: https://forums.oneplus.net/threads/vooc-charging-seems-to-be-working.12639/ by one of XDA's well known devs, @graffixnyc - Thanks Patrick!

Lipo can explode if you hot too much or overcharges, google "lipo explosion"

I have a question. If you use the OPO charger, but plug a usb extender into it(and the OPO cable goes into a usb female at the end of the extender cable), does does having that non-OPO cable in the chain slow things down? Mine does seem to charge slow, but I've honestly never connected the OPO cable directly from the charger to the phone to compare. I honestly don't understand how anyone could use it like that (or any other cable coming with a phone). Not even long enough to stretch from an outlet to a table top if the outlet is right next to the table. My Dell Venue 8 Pro cable is amazing(ly ridiculous). It's maybe a foot long. I guess they expect us to charge our devices on the floor? With the DV8P case the cable would barely even reach the floor!

i can confirm that using the OPO wall charger with a 3rd party usb cable does result in a slower charge time. I tried 2 different cables-- both were of different gauges and lengths-- both resulted in different charge times and were all at least 2-3x slower then the OPO cable. anybody with knowledge as to what kind of cable OPO is using and where we can buy longer versions?

cmo23 said:
i can confirm that using the OPO wall charger with a 3rd party usb cable does result in a slower charge time. I tried 2 different cables-- both were of different gauges and lengths-- both resulted in different charge times and were all at least 2-3x slower then the OPO cable. anybody with knowledge as to what kind of cable OPO is using and where we can buy longer versions?
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I can also confirm slower charging using the stock charger with aftermarket cable. But most of my cables are cheaper, is it possible that the gauge of the wire inside the cable is higher on opo cable? Allowing more amps through?
Also, @effluent , if using an aftermarket cable slows things down, I'm assuming putting an extension in the middle will have very similar negative impacts.
Sent via quantum entanglement, focused through my OnePlus One.

Here:
http://www.aliexpress.com/wholesale...ne+usb&catId=&initiative_id=AS_20140821164650
And here:
http://www.aliexpress.com/wholesale...harger&catId=&initiative_id=AS_20140821164948

You want a charger cable that won't fail.... Stop buying them online. I've bought them everywhere online and they just can't compete with the usb/charger cable from tmobile.... Maybe be the same for other service providers. Plus you get 30 days to refund or exchange.... So you know after a month if it's worth it which it is.... Those teeth won't sit down and ruin the quality of the charge like 90 percent of the cables online.
Sent from my A0001 using XDA Free mobile app

I suggest you have a look here :
https://forums.oneplus.net/threads/oneplus-one-charging-cable-alternative.68517/

flame360 said:
I suggest you have a look here :
https://forums.oneplus.net/threads/oneplus-one-charging-cable-alternative.68517/
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Seconded. I learned everything I needed to know there! :good:

Cable is way to small I hate it.
Sent from my A0001 using XDA Premium 4 mobile app

opo cable
On dx . com store..
Bolongking USB Male to Micro USB Male Charging Flat Cable

beastlykings said:
I can also confirm slower charging using the stock charger with aftermarket cable. But most of my cables are cheaper, is it possible that the gauge of the wire inside the cable is higher on opo cable? Allowing more amps through?
Also, @effluent , if using an aftermarket cable slows things down, I'm assuming putting an extension in the middle will have very similar negative impacts.
Sent via quantum entanglement, focused through my OnePlus One.
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You just have to find the right cable. I went through this same thing with my galaxy s5. I got the application "galaxy charging current" and compared the milliamps of all my cables. Some would only do 4-500 ma. Some would do 1800ma. It just depends on the cable. I'm using the cable I got with a ps4 right now, and it will do 1800, and it's 4 feet long.
Sent from my A0001 using XDA Free mobile app

Try a fast-charge cable, it has the correct pinout (shorted pins) for fast charging.
www<DOT>amazon.co.uk/dp/B0088HTYUE
And you can't overcharge, it's the phone that demands the current, not the charger that pushes the current through the phone. The phone's charging circuit protects the phone for overcharging and handshakes the right charging current with the connected charger. Charging Android is quiet a complex thing...
Also very very useful: PortaPow USB Power Monitor:
www<DOT>amazon.co.uk/dp/B00DF2485S
(ps can't post links yet, grr..)