They have the same connection dont they? What about current, amperage and all that good stuff?
We can deduce from the fact that they both can charge on your pc USB slot that their individual chargers are of same polarity and COULD be interchangeable. A quick check on my collection of chargers that charge also on USB is: K-Jam 5v 1.0 amp max, Atom 5v 1.0amp max, Jabra 800 6v 205mAmp 8) Check with your razr charger and interchange the chargers at your own risk :lol:
Victor
NO NO NO NO NO NO NO NO NO
Don't do it, I had somebody who had been charging there Compact with a razr car charger and now it won't charge at all. There appears to be some difference somewhere. Don't even risk it.
It wasn't the fact that the car charger was for a RAZR, the problem was, it was probably a generic charger. I fried a brand new iPAQ with a car charger I bought on eBay. I learned my lesson...
The *OFFICIAL* Motorola RAZR charger is rated less than the Wizard. Both the RAZR and the Wizard can charge via the USB. Both have the same pin outs. If the RAZR charger were rated higher than the Wizard, you should be concerned.
I've been using a RAZR charger since I got my K-Jam in (when was the very first shipment?) and it charges fine every time.
The ratings on my Motorola V3 charger:
Input: 100v-240v ~ 50/60Hz 0.2A
Output: 5.0V - 550mA
If someone can explain how why the RAZR charger is bad on the Wizard, I'd love to know why.
In fact, Nokia sells two different chargers. On some phones, they come with a standard charger. But you can buy a "fast" charger for the phone and the only difference is a higher AMP rating. I used to work for Cingular and have seen personally the same phone ship with both chargers...
-Mc
for grins: http://en.wikipedia.org/wiki/Universal_Serial_Bus
Power supply
The USB connector provides a single nominally 5 volt wire from which connected USB devices may power themselves. In practice, delivered voltage can drop well below 5 V, to only slightly above 4 V. The compliance spec requires no more than 5.25 V anywhere and no less than 4.375 V at the worst case; a low-power function after a bus-powered hub. In typical situations the voltage is close to 5 V.
A given segment of the bus is specified to deliver up to 500 mA. This is often enough to power several devices, although this budget must be shared among all devices downstream of an unpowered hub. A bus-powered device may use as much of that power as allowed by the port it is plugged into.
Bus-powered hubs can continue to distribute the bus provided power to connected devices but the USB specification only allows for a single level of bus-powered devices from a bus-powered hub. This disallows connection of a bus-powered hub to another bus-powered hub. Many hubs include external power supplies which will power devices connected through them without taking power from the bus. Devices that need more than 500 mA must provide their own power.
Click to expand...
Click to collapse
The max that the USB port can put out is 500mA. The V3 charger is between the USB port and the official HTC charger.
USB: 500mA
RAZR Charger: 550mA
HTC: 1A
Don't buy a generic charger. Buy a name brand charger...
Also, for more details about the USB pinouts than one man can digest in one sitting, read that entire Wikipedia article. I did... wish I hadn't.
-Mc
the same discussion is going on over at hofo or ppcdubai, forgot which one, but thers several posts with "I know someone that...." or "my friend did..." and devices ended up being fried. well i'm telling you from first hand experience. about a year ago I bought a belkin razr car charger from walmart and i've been using it on my jam and now my k-jam and my battery and device aren't damaged. I don't know the rating on it but I suggest u check the rating of anything before u plug your device into it.
also that car charger didn't charge my sp3i, just to let ya'll know.
That discussion at HOFO was a question that *I* originally asked back in December. I just posted the same information over there about 5 mins ago.
Buying chargers for 4.99 on eBay will kill your device every time. I learned the hard way. If you buy a name brand product, your fine.
Specs says it's OK. Experience with a name brand charger (your belkin and my Motorola) says it's OK.
But like I said above, if someone can point out a hole in my logic, please tell me. I've been wrong before but I don't think I am on this one.
-Mc
Works for me...
Motorola branded AC charger, rated for 550mA current
Generic car charger for mini-USB, made in China eBay, no specs.
Both work fine with my Razr V3 and my Qtek 9100. Bit of a risk to use the car charger, but it's worked well with the Razr. Agree completely with McHale, your logic works fine. If your AC converter and DC power source are up to USB spec, you should in theory be able to charge both devices.
The unknowns are the custom circuitry the cheap converters use to "prevent" overcharging. Some have simple diode rectifiers, some have weak op amp current sinks, etc. Basically, some of these overcharge circuits don't work at all and you get a fried device. You get what you pay for, usually.
Hi
I have 2 phones - an O2 XDA Mini S (a K-Jam) and a Motorola Razr V3. I use the Motorola chargers, both wall charger and car charger, every day for both phones and have done so, without problems for months.
Shaun
nope, doesn't work. Simple as that.
I have both, I tried - used one at the office, the other (razr) bedside. The charge light comes on, then goes out in five seconds.
Every once in a while, it actually would charge... finally gave up and got rid of the razr charger.
Hi
It definitely works for me - I have actually never used the O2 charger; I use the Motorola wall charger at the weekends and the Motorola Blue Car charger every morning.
That is the only way I charge my O2 XDA Mini S - so it obviously works in my case!!
Regards
Shaun
I have been using my Razr charger (car and home) since I got my KJam a few months ago. I had a surge and my official charger was fried in a surge.
The only problem I have had was when I completely drained my battery (GPS software that prevented power down) I was not able to bring my KJam back to life with the RAZR or USB charger.
I connected my KJam to a friends official charger for a couple of minutes and it was fine.
I bought a new charger from Expansys, but I still use my RAZR chargers as well.
I don't understand the reasoning, but you can not charge the phone via the USB unless it is on. Since the RAZR charger is basically the exact same specs as a USB port, same rule applies.
If the battery is dead, there's no way to turn it on for it to work.
At least that's my uneducated guess.
But like I said, I've been using the RAZR charger since the end of December and have never had a single discharge or any other problems.
-Mc
Related
I have done a bit of testing on an issue I thought I might have been imagining, and it seems there is an issue there after all.
Issue: Hero will sleep properly while charging, but only while plugged in to certain chargers.
Detail: My HTC wall charger model CNR6700 (clearly from an older phone of mine), is rated at 5v and 1A, which is the same rating as the wall charger that came with my Hero, model TC P300, also 5v and 1A. Should there be any functional difference between them as far as charging is concerned? I had assumed not, and I was wrong.
When plugged in to the CNR6700, the phone will not sleep, ever, although the screen does shut off on its own.
When plugged in to the TC P300, the phone will sleep within a minute of being plugged in, always.
I tested this a few times, back and forth between the chargers for 10 minutes at a time, and the results were completely consistent. Prior to today's testing, I have seen this issue (same issue, to the best of my recollection) on not just the recent 2.1 roms, but also on the 1.5 roms I previously had ran.
Anyone have any thought on why this might be? I would love to hear back from other people who are having trouble with their Hero sleeping while charging. Specifically, by model, what charger are you using, and do you have any others you can test with (in particular the one the Hero came with) to compare your results with?
Not sure about this, but I do know after talking to some associates at one of our electronic supply stores here that HTC's need a lot of power to charge and you can not use a power supply to charge them unless they are for HTC phones.
Mine sleeps fine with my wifes blackberry curve charger. I use an old razr charger at work but don't know if it sleeps or not.
&RoidRage said:
Not sure about this, but I do know after talking to some associates at one of our electronic supply stores here that HTC's need a lot of power to charge and you can not use a power supply to charge them unless they are for HTC phones.
Click to expand...
Click to collapse
Granted, they do draw a lot of power. As far as I know, a current generation HTC phone will pull nearly the full 1A (1000mA) that their chargers supply if it's available. USB ports are generally only required to supply 500mA per port, and you may notice that many other chargers only supply that much. So, not all chargers will be as effective.
However as I said, both the chargers I tested with are HTC brand, 5V 1A. One is older (6700-era, purchased with 6800, or maybe with Touch Pro), and one came with my Hero. Seems that perhaps there is some different circuitry in the chargers beyond their power rating that the phone responds to...?
To re-frame the question, why can an HTC phone sleep while charging on a 'new' HTC charger, but not on an 'old' HTC charger, or presumably on various other chargers, when they have the same power ratings?
what car chargers will work with our phone? I saw someone had used a charger from a razr, but when I went to the store to check them out, the usb cable wouldn't fit, and I wasn't going to try to for the thing on there. Any ideas please?
I use a mini USB cable to the phone with a usb car charger.
You should look again. I use 2 old Razr chargers (1 home & 1 car) and they both fit perfectly. My old Htc diamond and touch pro chargers work too.
ryan5943 said:
You should look again. I use 2 old Razr chargers (1 home & 1 car) and they both fit perfectly.
Click to expand...
Click to collapse
Depends on what razr you had. I think they changed the port to a micro usb in one version.
Like railstop said, find a GENERIC USB car charger. If you can find one that is just the car charger plug with USB port(rather then a non-detachable cord) then that is even better b/c you can plug any usb cable into it. USB A -> mini .... USB A -> micro ... USB A -> iPod
It doesn't matter. If you get the generic then you can also plug in any device that will charge off your computer.
If the charger is marked 1 A, it'll charge faster. Some of the mini USB chargers, for phones or BT headsets only charge at 300mAh or 700mAh. They'll charge, eventually, but a lot slower.
smarcin said:
If the charger is marked 1 A, it'll charge faster
Click to expand...
Click to collapse
Good point. Some devices(not the hero) will complain that the charger is not compatible but 95% of them will still charge. They just throw up that warning b/c they will charge slower.
If you are constantly using GPS then you will want to hunt around for a 1 amp version because even with a 1A charger the hero's battery can't keep up with the drain of GPS and data for the navigation.
I too am using an old Moto car charger(not Razr). Just look for any USB mini car charger, don't get suckered into Sprint approved accessories. If you have an extra miniUSB cable, it may be better to get a generic USB car charger, so you can switch out when you get a new phone.
centran said:
Good point. Some devices(not the hero) will complain that the charger is not compatible but 95% of them will still charge. They just throw up that warning b/c they will charge slower.
If you are constantly using GPS then you will want to hunt around for a 1 amp version because even with a 1A charger the hero's battery can't keep up with the drain of GPS and data for the navigation.
Click to expand...
Click to collapse
i went out and bought a generic moto charger that has the different adaptors on it, but it's charging slow as ****, to the point of pretty much not even seeming to charge. I also had a griffin usb charger that was doing the same thing. :grr:
Could a charger above 1000mA damage the phone? I have two gps mini-usb car chargers rated for 1500mA and 2000mA.
vashing said:
Could a charger above 1000mA damage the phone? I have two gps mini-usb car chargers rated for 1500mA and 2000mA.
Click to expand...
Click to collapse
No it wont matter. The phone will just draw 1 amp, the ratings are just maximums.
abr27440 said:
No it wont matter. The phone will just draw 1 amp, the ratings are just maximums.
Click to expand...
Click to collapse
Thank you.
Any risk in using a different charger than the original samsung one to charge the sgs2?
I use a combination of blackberry charger at work, universal micro usb charger downstairs at home, universal car charger and official charger upstairs.
Any concerns with this?
I've been doing that for ages. I use the droid, SE x10 and iPhone chargers with no issue.
As always YMMV
I am using htc's charger which has a higher rating than samsung charger. No problem at all...
Sent from my GT-I9100 using Tapatalk
I use a Sony charger to charge my S2 , I have not even removed the Samsung one from the box , As long as you use a branded charger will be fine.
I've tried to use Nokia's 1200 mA charger, It did charge the phone but whenever i connected that charger the phone would slow down terribly. So, whatever you use, try to keep it around Samsung's charger's 700 mA.
Ive found that the standard charger is rubbish! I had my galaxy s 4 month and it broke, my wifes galaxy 3 did same and now i dont even bother with the one out the box, just use the usb cable and the adapter i got with my tab.
Sent from my SGS2 via XDA App
[email protected] said:
Ive found that the standard charger is rubbish! I had my galaxy s 4 month and it broke, my wifes galaxy 3 did same and now i dont even bother with the one out the box, just use the usb cable and the adapter i got with my tab.
Sent from my SGS2 via XDA App
Click to expand...
Click to collapse
Absolutely right...my phone is about 1 month old..and the official samsung charger is already broken..not charging anymore..i guess there is an internal wire breakage at the flexible point of the charger becoz when i shake the wire at that point it starts charging intermittently..
Sent from my GT-I9100 using Tapatalk
I use my Kindle charger any micro usb charger will be fine.
Sent from my GT-I9100 using XDA App
iznee said:
Absolutely right...my phone is about 1 month old..and the official samsung charger is already broken..not charging anymore..i guess there is an internal wire breakage at the flexible point of the charger becoz when i shake the wire at that point it starts charging intermittently..
Sent from my GT-I9100 using Tapatalk
Click to expand...
Click to collapse
Same here. I tried all sorts to get it to work with no joy. I now have 3 duff samsung chargers that are potentially a fire hazard if left plugged in! Tempted to email samsung and raise this concern.
Sent from my SGS2 via XDA App
At home I use a Lenmar AC-to-USB 1A charger I picked up at Fry's for around $10; in the car I use a 1A Cygnett 12V-to-USB charger, also from Fry's. Both charge the device at least as well as the OEM AC charger; the car charger appears to charge the SGS2 even when I'm running CoPilot Live.
I use the iGO charge anywhere.
It's a tad pricey, but since the GS2 battery life isn't great (my only complaint on the phone), the charger is great for it since it has an internal battery that charges up when you put it in an outlet so you can charge the phone without needing an outlet. Great for in school or walking around, just put it in my bag and press the button and it charges.
I'm using my BlackBerry charger with no issues, I just do it for convenience as the charging time is the same as the standard charger.
Cheers for the replies, you have put my worried little mind at ease!
daz_2000 said:
Cheers for the replies, you have put my worried little mind at ease!
Click to expand...
Click to collapse
+1 .Just used the charger from a different brand and no bad feelings while using it
well, i just emailed samsung raising my concerns regarding the faulty chargers... see what they come back with....
Guys have you noticed any change in response when we plug in another charger?
I have been using the HTC charger, 200 mA (input), Output 5V --> 1A.
Whenever i connect my phone to charge and try to work on it, i see my screen lag terribly. Haven't tried it with the supplied charger though due to the low voltage that came with it.
I know i would be wrong, but wanted to check with the experts on this forum...
maddesire said:
Guys have you noticed any change in response when we plug in another charger?
I have been using the HTC charger, 200 mA (input), Output 5V --> 1A.
Whenever i connect my phone to charge and try to work on it, i see my screen lag terribly. Haven't tried it with the supplied charger though due to the low voltage that came with it.
I know i would be wrong, but wanted to check with the experts on this forum...
Click to expand...
Click to collapse
i am using the htc charger that came with the desire hd...no issues what so ever...screen response while charging is the same on or off the charger.
maddesire said:
Guys have you noticed any change in response when we plug in another charger?
I have been using the HTC charger, 200 mA (input), Output 5V --> 1A.
Whenever i connect my phone to charge and try to work on it, i see my screen lag terribly. Haven't tried it with the supplied charger though due to the low voltage that came with it.
I know i would be wrong, but wanted to check with the experts on this forum...
Click to expand...
Click to collapse
200ma is way low, less than half the 500 ma usb standard. Get a new charger. Most of the chargers you are going to see will be 500 ma I would go with double that.
Some (bad?) chargers will disable touchscreen
I have a couple of usb-chargers off ebay and they give some trouble.
When connected, the touchscreen will not work anymore.
This is mentioned in the manual btw.
Guess the SII is a little sensitive.
Yeah, ebay chargers are a crapshoot. Head to walmart or similar and read the power specs, get something that puts out 5v at 1A LPS. This will charge much faster than the often usb based standard 500 mA chargers and the battery will not be harmed at that charging level which is what many stock HTC chargers put out nowdays. Do not get anything less than 500mA, this is the usb standard and works but will be slower to charge. El Cheapo no name chargers on ebay and such may have the spec but may or may not actually put out the juice. You can usually tell this because the phone will have problems like the ones mentioned right here. The stock charger does not put out any special juice, juice is juice. If a charger puts out to spec the phone will work while charging.
I'm looking to get an adapter for the car to plug-in my TF on roadtrips.
I sincerely doubt it pulls much power, but I'd like to know so I can buy the smallest possible DC / AC adapter possible.
Does anyone know how many watts (@ what amps) the TF pulls while running? While charging?
I was looking at:
http://www.amazon.com/Duracell-813-0291-07-Pocket-Source-Inverter/dp/B000U0M7PG/ref=pd_cp_e_2
Which I would imagine should cover it, but if I could get an even smaller one (since this is the most power hungry device I travel with...well maybe my thunderbolt while running 4G is, but I'm less worried about that) I will search that out instead. Thanks!
why don't just buy a phone car charger that uses USB? The USB end of your Transformer cable would plug into the charger. You can pick one up online for a couple of bucks as opposed to $30. Just about anyone will work.
No, you should NOT take any usb car charger, because most of them have not enough output.
The original has up to 15V and 1.2A.
I used one of a mobile phone with just 0.4A, nothing happens.
One with 5V and 1.0A need about 3 days to fully charge.
I suggest that you go over this thread:
http://forum.xda-developers.com/showthread.php?t=1087321
Hey guys, while this information may be redundant to some, this is my first 2A charging phone having come from a GS2. A few note's i thought i'd share about fully utilizing the maximum charging of this phone. Using Elixer app, i was able to determine a few tips when charging
CABLE LENGTH MATTERS
I went out and bought some nice long monoprice cables, 10' and 15', i hated the feeling of being sucked to the nearest wall when you wanted to charge and use your phone. Plugged it into my nice new S4 wall port with a 10' cable, and checked the amperage being sucked in, to my surprise it was no where near the 1900mA max i should be getting. Went to the 15', even lower current (duh, for those who weren't able to put that together), went back to my 6' cable, boom, back up to 1900mA.
TLDR: 6' max for maximum charging
PAY ATTENTION TO 3rd PARTY SPECS
often times these specs are misleading on amazon and such. Often times you will see a 2A car charger with two ports! Awesome, but sadly each port is usually rated for 1A each. This will not be enough to output a full 1.9A (1900mA) for your device. You need to look for 3.1A rated two port items (2.1A and 1A port), or 2/2.1A output for single port chargers, or for true dual charging, a 4.2A rated with each port rated for 2.1A. They do exist.
Also, pay attention to whether the device is iPAD (or any dumb iDevice) certified or marketed to the iCommunitiy. Often times even though the dual port chargers with the 2.1 and a 1 amp port, the 2.1 amp port does NOT have the correct data ports shorted out. What this means is how the phone detects the power source. When you hook your phone up to a computer, there are channels in the USB cable that tell the phone it will be using data, this then limits the amount of power it will draw. The iPAD chargers are set up this way where the data ports are not shorted out, so your phone will not suck the full amount of power. To bypass this, you either need 'CHARGING ONLY' USB cables, which short out this channel for you, or you need to mod the charger with some light soldering. Often times i find this iPAD issue on the ones rated for 2.1A, the 2A chargers generally do not have this issue (just a generalization on the marketing of the chargers, not a fact)
do some reading on the spec's before you blast the product, i hate it when people bash it when they buy the wrong thing and it's their own fault for not taking the time to research it. And if it's not clear, don't buy it!
Ok, that's all i have for now, hopefully this helped some people out there. make sure you do your reading before you write up posts about your phone charging slow, or bash a product you bought because you didnt understand what it was truly designed for.