Yes can we charge our tabket with mini usb port, with a blackberry charger?
No, we can't.
What would happen if I charge it with blackberry charger
Nothing ... there is no connection to the battery ... so it will not charge.
That just is poor design. Sony controls the power connector deliberately making it proprietary. Its expensive and bulky to bring around. Further more its battery life is nothing to shout about. Making this problem even more glaring. Its not as if the competition are not implementing micro USB charging.
I hope the Sony design engineers are able to do something about it. Good design doesn't just restrict itself to external physical aesthetics.
The problem here is that the AC adapter output are 10.5V and USB is limited to 5V.
But I agree, I wonder if Sony will ever learn that the use of proprietary accessories and ports is NOT a) customer friendly and b) not driving up sales numbers.
They (more or less) failed with their Memory Sticks, they failed with UMD and they will definitely not create a hype around the PS Vita with it's proprietary memory card.
BackToTopic:
It is not only the voltage ... a second topic is the current.
USB can only provide 500mA current .. but this would lead to a quadruple charging time.
Also, you'd be surprised how many tablets can't charge from USB. Since USB uch low voltage and current limitations, many tablets don't charge or implementation iPad-style behaviour (doesn't charge but also doesn't discharge). There will always be something about the Tablet you don't like, so just enjoy what is overall a very good Tablet.
So long as future iterations of the Sony tablet charging port is not proprietary that will be good enough I guess. Its mind boggling the rationale for going to a totally different and unique design.
They could standardize the mobile smart phone charging ports why can't they do it for the tablet?
cow138 said:
So long as future iterations of the Sony tablet charging port is not proprietary that will be good enough I guess. Its mind boggling the rationale for going to a totally different and unique design.
They could standardize the mobile smart phone charging ports why can't they do it for the tablet?
Click to expand...
Click to collapse
They can't do it for the tablet because all the tablets on the market today work on very different power requirements to phones.
On one level, different tablets use different approaches to batteries (i.e. the Thrive is a very large, user-replaceable battery, whereas the Sony uses a smaller, hard-to-remove battery pack), which would make them difficult to standardise.
The other problem is different power requirements. Tablets often operate on much higher voltages than phones, such as the Sony's 10V battery which well exceeds the 5V that USB can provide.
I'm sure one day there will be a higher voltage standard connector, but at the moment, the market is just too varied and too fast-moving to support the creation of such a standard.
The Apple iPad charger has a 2100mA which is more than 4 times what standard USB chargers output, many other tablets have a similar output. It would still be longer to charge than the standard plugpack. Unfortunately, Sony seems to view Apple's success, as an argument for using proprietary accessories and cables. But newer Xperia devices are shipping with Qi Wireless Charging; in a generation most devices will most likely use that.
Related
Trying to gauge interest for a pet project.
How many of you would be interested in an adapter that would allow you to use a laptop "brick" to charge your G-Tab?
First design is going to be for the Dell laptop power supplies (since I have a plethora of them )
If there is enough interest in other laptop supplies I will look at different connectors as well.
No idea on mfg costs right now, need to prove concept first. Cost target (Resale) is ~$10
I'd like to see and adapter that fits the Dell D and E series Latitude chargers.
That's the one I'm aiming for initially. Newer series Dell with the ROUND receptacle. I "think" it might still work with the octagonal receptecles though. Need to get some samples and try it out for fit.
Cost might be sligthly higher than I originally anticipated (Still <$20 though) - the damn Dell connector is a quasi-custom and cheapest I've found is $6+ shipping....grumble....
If the old receptacles work, that brings the cost down.
Haven't priced the tablet side connector yet, but I'm guessing it's going to be a couple bucks with a lead on it.
More to come....hoping to have some parts by next week to start building up protos.
I'd be very interested in something that would plug into a USB port on a desktop or laptop or any USB power supply.
I have a couple of D-Series laptops and would love to use the same charger for them and my G-Tab. I would definitely buy one.
nunjabusiness said:
I'd be very interested in something that would plug into a USB port on a desktop or laptop or any USB power supply.
Click to expand...
Click to collapse
If you have USB3.0 it "might" be possible as that has higher current carrying (3.6W) potential than USB1 and USB2.0 which are ~500mW at best. That's one disadvanage to the big ass battery in these things, which I think are 7.2V, so they usually require a higher input voltage (hence why we get 12V in). Even with USB3.0 though, we are still looking at long (10x+) charging times versus the wall-wart.
It's "technically" possible to step up the current USB 5V to 12V, but the power level is so low that it would take forever and a day to charge ( or about 48x longer than the current 12V/2A wall charger)
without a proper teardown though, it's tough to tell what the charging circuit looks like on the board. My guess is it's a 12V / 7.2V buck charger as it's cheaper than a boost/buck to implement. My bigger question about the internal charging circuit though is what it actually draws in terms of power...the wall wart is rated for 12V/2A, but those are usually overbuilt to prevent them from blowing up. Hoping it's closer to 1A draw, but again without knowing what the charger chip is, there's no (Easy) way to determine this without probing the connections.
bnovak said:
How many of you would be interested in an adapter that would allow you to use a laptop "brick" to charge your G-Tab?
Click to expand...
Click to collapse
Count me in as well. I travel a ton for work and having one less charger to stuff in my carry-on would be great - well worth the sub-$20 price.
I currently pack a PA-4E, stock charger for a Latitude E6510
I would be interested, though I have an ASUS laptop at the moment.
On a side note, if you did only decide to make one and it were for Dell, anyone could purchase a universal adapter and care the one adapter and two tips. Just a thought.
Hi,
This is a request to Sony engineers to see if they are able to allow some form of trickle charge through the micro USB port.
Its a good alternative especially when we are outside and the device is low on juice.
It's technically impossible as the tablet is designed to charge via high voltage (10v) beyond normal usb maximum (5v).
cow138 said:
Hi,
This is a request to Sony engineers to see if they are able to allow some form of trickle charge through the micro USB port.
Its a good alternative especially when we are outside and the device is low on juice.
Click to expand...
Click to collapse
I think part of the hardware gets 5v converted from the higher voltage on the battery and it should not be impossible to convert 5v on usb to higher voltage anyway so I think it is possible at least with a hardware mode. Standard usb is not very powerful so it will need much longer to charge but it should be possible to use more than one usb ports using special y-cables and also many standalone and car chargers output more than standard 500mA.
Sent from my R800i
So long as can trickle charge it should be better then nothing. Sometimes we just need a little bit of extra to prevent this baby to be a big paper weight.
Sony will never do it.
It is Sony after all.
They "might" release the next generation tablet with the USB charger.
Or they might not.
Say it isn't so. Haha. Damn the Motorola Xoom already allows this. Hopefully the Sony engineers are reading this post and put it as something in their to do list.
Its just so much more convenient for users to quickly give our device a life line on the road.
thought
cow138 said:
Hi,
This is a request to Sony engineers to see if they are able to allow some form of trickle charge through the micro USB port.
Its a good alternative especially when we are outside and the device is low on juice.
Click to expand...
Click to collapse
Sony's thought process is that this is more of a computer than a phone and that that reflects in the choice of charger.
Yes. Likely to be so. The specialized power connector is so stupid. If they can standardize the power connector for the hand phone why not do it for the tablet. It just makes economic sense. You gain flexibility on cost of manufacture and makes life so much easier for the rest of us.
I agree
cow138 said:
Yes. Likely to be so. The specialized power connector is so stupid. If they can standardize the power connector for the hand phone why not do it for the tablet. It just makes economic sense. You gain flexibility on cost of manufacture and makes life so much easier for the rest of us.
Click to expand...
Click to collapse
My other two devices have a Micro USB charger, would be nice if the Sony did as well.
Not something that would dissuade me from buying the Sony S, but darn inconvenient.
The plus side is that in theory your recharge time should be a lot less.
Yeah, it should charge faster than Micro-USB. Thats the trade-off of having the Tablet's long-life, long-lasting battery. It delivers plenty of voltage to keep things running smooth which unfortunately kicks it over the maximum voltage that can be provided through USB.
I think you'll find that most high-performance tablet's on the market today won't allow full charging through USB. The best they can usually manage is what the iPad and Galaxy Tab does (i.e. when plugged into USB, they don't charge, but they also don't discharge, keeping the level the same).
Not to sure what's the configuration would be. If the voltage is not high enough then it might be possible to use 2USB ports to try to push the total available voltage to make it useable for charging the tablet.
cow138 said:
Not to sure what's the configuration would be. If the voltage is not high enough then it might be possible to use 2USB ports to try to push the total available voltage to make it useable for charging the tablet.
Click to expand...
Click to collapse
Cranking 10V through a micro-USB connection that was only ever designed for peak voltages of 5.5V would probably not be healthy. It might break the USB or greatly reduce battery lifespan.
I have four chargers that follow the same basic design, plug-in socket at one end, USB port at the other so you have to use the USB-data cable to charge the phone. I have one for my son's Sony Xperia Go, my ASUS Transformer Infinity tablet, my old HTC Wildfire and my even older Sony Ericsson Xperia X1i... what I'm wondering is that since they all use the USB standard, could they be interchanged without damaging the battery of the phone/tablet? Can one assume that the voltages and currents and everything (I'm no electrical guru obviously) are the same? Oh and I do actually own a SGS2 but that uses a different kind of charger anyway so it's irrelevant really...
Should be the same.
Sent from my A100 using xda app-developers app
pietpodlood said:
I have four chargers that follow the same basic design, plug-in socket at one end, USB port at the other so you have to use the USB-data cable to charge the phone. I have one for my son's Sony Xperia Go, my ASUS Transformer Infinity tablet, my old HTC Wildfire and my even older Sony Ericsson Xperia X1i... what I'm wondering is that since they all use the USB standard, could they be interchanged without damaging the battery of the phone/tablet? Can one assume that the voltages and currents and everything (I'm no electrical guru obviously) are the same? Oh and I do actually own a SGS2 but that uses a different kind of charger anyway so it's irrelevant really...
Click to expand...
Click to collapse
Regarding the voltage one can assume that a charger with an USB port always will supply a voltage of 5 volts.
However the wattage of the chargers will differ. This is not really an issue as the charging current is basically controlled by the capabilities of the device to be charged (your phone) and not by the capabilities of the charger. This holds true as long as the charger is able to keep up with the current requirements of the device. This too is generally not a problem at all.
When it comes to the time it takes to charge a device, things can differ quite much.
Assuming you do not have a kernel like for example Siyah installed (and tweaked charging settings) your phone will set the charging current according to what it detects on the USB port. If it detects a standard USB port (Laptop for example) it will charge with a lower current. If it detects a dedicated charging device it will draw much more current and the charging will hence take less time. This detection (USB port or dedicated charing device) depends on the impedance between the two data lines D+ and D- of the USB cable. A dedicated charging device will have a low impedance or to put it simple: a charger should have a short between D+ and D- to be detected as such. This short is part of the charger not part of the USB cable (this allows you to charge the phone with any standard USB cable).
At any time you can use Settings > About Phone > Status to check the Battery Status. If it shows Charging (USB) then a standard USB port has been detected and charging will take more time. If however it shows Charging (AC) then a dedicated charger has been detected and charging will take less time.
Last but not least you might experience one more difference between the chargers: the amount of noise (ripple on the 5V DC) they generate. The less the better. The ripple on some chargers is that bad that the touch screen will be absolutely unresponsive during charging. The original Samsung and many other chargers are fine, but I have some low cost models here that make using the touch screen during charging impossible.
Generally I would answer your question like this: yes, chargers with USB connectors are interchangeable. However the charging result might differ quite much.
I just bought two sets of SONICable,The World's Most Advanced Charging Cable, for $49.00. Supposedly, they will increase you charging speed by 2x. It's a crowdfund project, and the cables will supposedly be delivered in March 2015.
I'm not affiliated with the project. I only think it sounds like an exciting product and decided informing the community about it.
Does it work on the same principle as this video for doubling your WiFi speed?
Code:
https://www.youtube.com/watch?v=lG5cEik2ABY
Well while surely there are better and worse cables, doesn't charging speed depends on the output of the wall piece and the charging circuitry?
On bad cables i get at most 1 Amp to charge the tablet, but with the original samsung cable i do get around 2 amps which is the designed output of the wall piece.
Maybe it works like the "Fast Charge" mode on custom kernels.
Charging is limited by 3 factors
1. Stock charger 5 Volts, then most importantly is the Amps - 2A for typical Samsung charger so going faster then this is unlikely with the stock charger, and tablets can already charge at 1890mA so probably 90% of its rated current.
2. Cable quality and length most Samsung cables are already high-quality and have copper wires with two bigger wires for the 5v and Ground line and they are short length (3-6ft) so they can easily handle 2A output (probably higher).
3. Probably the most important is the phone / tablet, usually they have several circuitry and software (kernel) protections to limit the charging speed for several reasons since lithium-ion / poly are extremely dangerous if they are overcharged or overheated or otherwise improperly charged (you can see videos of people overcharging lithium battery's then tapping them causing a huge fireball )
So it is very unlikely for a cable to achieve better charging speed, it probably just has the Data + - pins shorted to tell the charger / phone to charge at full speed (though this is unnecessary nowadays since most chargers already do this, but it could be beneficial for older phones / tablets)
arcadia2uk said:
I just bought two sets of SONICable,The World's Most Advanced Charging Cable, for $49.00. Supposedly, they will increase you charging speed by 2x. It's a crowdfund project, and the cables will supposedly be delivered in March 2015.
I'm not affiliated with the project. I only think it sounds like an exciting product and decided informing the community about it.
Click to expand...
Click to collapse
You seriously spent $49 on a usb lead
From the link you supplied:
'When the switch is ON: All of the power is focused on charging, sync/data is disabled'
What, like using a mains charger where there is no sync connection (or buying a cheap charging cable where the data pins aren't connected)
Hes either a bot or someone paid to advertise that "product". It did remind me of "double your network speed" video from youtube where dude wraps one ethernet cable with another one and doubles his internet speed.
I saw this post a while back, and it was immediately clear to me that it was a scam. I can't BELIEVE that they actually raised over $400k on this thing. Indiegogo seems like it's becoming a scammer's conduit to gullible/uninformed buyers.
When did commercial posts get so frequent in here?
ssmr2t said:
When did commercial posts get so frequent in here?
Click to expand...
Click to collapse
Apparently, there's a difference between buying a sd-card on amazon, or a glass protector on amazon compared with a pair of cables on Indiegogo. Although, I can't really see the difference.
Anyway, if and when I receive the cables I will let you know how it worked out.
Did you get your cables yet? Your OP says they were due in March 2015
Edit: I like this better http://www.google.com/url?sa=t&sour...9QNSmGzx8GP_qMGpQ&sig2=O-5lUKoBFozTFf-A2spM6A
ssmr2t said:
Did you get your cables yet? Your OP says they were due in March 2015
Edit: I like this better http://www.google.com/url?sa=t&sour...9QNSmGzx8GP_qMGpQ&sig2=O-5lUKoBFozTFf-A2spM6A
Click to expand...
Click to collapse
No news as of yet, who knows maybe it is as suggested a hoax. But, as I'm enjoying gadgets I'll take the risk.
arcadia2uk said:
No news as of yet, who knows maybe it is as suggested a hoax. But, as I'm enjoying gadgets I'll take the risk.
Click to expand...
Click to collapse
Keep us posted! Im interested in the results.
I'll probably buy when the price goes down.
Seems like an interesting concept. I'd like to see the cable in real-world action. Assuming they actually make it to market, i'll buy when the price goes down.
Believe it, or not, but I actually received my cables last week. The charging speed is substantially improved, but definitely not 2x. However, I still haven't tried charging by connecting over the PC, where this might show up. Anyway, as a fan of gadgets I still satisfied with my purchase.
I'm glad your happy with your purchase.
Charging speed is limited by the circuitry in the tablet itself. There's a limit in the amount of amps it can pull from anything (charger/computer or any USB port). I have an extremely powerful charger so I'm sure I hit the max charging rate of my devices. This cable will not improve that. I'm also sure that it's actually charging faster and drawing more power than my original chargers as some devices act a bit weird when charged fast.
The "twice as fast" charging rate will be the exact same charging rate as you get from a "charge only" cable if (and only if) you connect it to a computer or another device that syncs data. In every other scenario you'll get the exact same charging rate.
Note that your computer typically has a USB port for charging that's capable of drawing more power than the standard 500 mA that USB 1 and 2 offer. (USB3 can draw 900 mA, up to 1500 mA if it's a charging port)
Keep in mind that the stock charger output is 5.3 volts.
Lower impedance cable helps.
Samsung stock cable is good enough, and PNY cable also does a good job.
You can have the same thing on eBay for $6 ...
http://www.ebay.com/itm/USB-smart-c...-Apple-Android-With-V-A-display-/141342314642
A charge only cable so you get maximum charge speed starts at only £5
http://www.portablepowersupplies.co.uk/portapow-fast-charge-micro-usb-cable/
An choice of USB Charging adapter, but do you really need these?
http://www.portablepowersupplies.co.uk/portapow-fast-charge-data-block-usb-adaptor/
John.
If you have 5 port 8 amp IQ charger, you can charge T520 faster.
ssmr2t said:
Did you get your cables yet? Your OP says they were due in March 2015
Edit: I like this better http://www.google.com/url?sa=t&sour...9QNSmGzx8GP_qMGpQ&sig2=O-5lUKoBFozTFf-A2spM6A
Click to expand...
Click to collapse
Yes I got my cable, and the 2x works if you charge through your computers USB, as what the cable does is cutting off the communication to charge only. I saw a post at XDA that explain how to do this by yourself in about 5-10 min.
Do we know for sure why it is that dash charging only works work the dash cable. Is it a DRM issue or a design element that needs to be licensed.
I'm not too stressed out because I plan to use a standard usb c cable for overnight charging but I am curious what is actually going on inside this charger.
I am quite familiar with OP official response concerning the matter, but given their track record of non answers, I'm assuming this situation is no different.
In other words I am curious what stops a company from releasing a cable that would in fact work. Possibly with the addition of some end user kernel changes. I understand this would be slightly impractical for a large company like Aukey or Anker to release a cable for one phone (that people could not use straight out of the box) however, my curiosity is still there
https://www.androidcentral.com/dash-charge has a good article on this.
---------- Post added at 12:53 PM ---------- Previous post was at 12:47 PM ----------
Also, supposedly it's the same tech as http://www.oppo.com/en/technology/vooc - and anything "VOOC" branded will provide the same "dash charge" speeds.
Dougshell said:
Do we know for sure why it is that dash charging only works work the dash cable. Is it a DRM issue or a design element that needs to be licensed.
I'm not too stressed out because I plan to use a standard usb c cable for overnight charging but I am curious what is actually going on inside this charger.
I am quite familiar with OP official response concerning the matter, but given their track record of non answers, I'm assuming this situation is no different.
In other words I am curious what stops a company from releasing a cable that would in fact work. Possibly with the addition of some end user kernel changes. I understand this would be slightly impractical for a large company like Aukey or Anker to release a cable for one phone (that people could not use straight out of the box) however, my curiosity is still there
Click to expand...
Click to collapse
Simple Answer to this is the proprietary high amp usb type c cable which is supplied with the stock 5v 4amp power brick work well hand in hand, it is the way Oneplus has made this..one cannot work without the other so it is packaged deal..take it or leave..unless you are willing to compromise DASH Charge you can use any other type C cable and power brick adaptor
On a standard type-c (USB 3.1) cable connected to my PC, the phone slow charges. My other devices fast charge on this cable.
The other devices slow charge when connected to Dash cable and charger.
It leads me to think some very non-standards conforming USB tech is going on in the Dash gear, enough to make Benson Leung sick to his stomach. This isn't new to OnePlus, see https://plus.google.com/+BensonLeung/posts/JmcU4rA1csh
My advice would be to never use Dash gear with other devices.
Elnrik said:
It leads me to think some very non-standards conforming USB tech is going on in the Dash gear, enough to make Benson Leung sick to his stomach. This isn't new to OnePlus, see https://plus.google.com/+BensonLeung/posts/JmcU4rA1csh
Click to expand...
Click to collapse
AFAIK this non-compliance thing has been there only in the first shipped cables and was fixed later on. So today's devices (this is already 2 years ago) should be compatible to USB standards and therefore other devices should load their battery at normal speed (not dash-speed) with the dash cables and dash plugs.
tobby88 said:
AFAIK this non-compliance thing has been there only in the first shipped cables and was fixed later on. So today's devices (this is already 2 years ago) should be compatible to USB standards and therefore other devices should load their battery at normal speed (not dash-speed) with the dash cables and dash plugs.
Click to expand...
Click to collapse
Should, but I don't think it is. Q: why would the OP5 not fast charge over a normal type-c connection if it were standards compliant? Answer: it doesn't comply with standards.
Elnrik said:
Should, but I don't think it is. Q: why would the OP5 not fast charge over a normal type-c connection if it were standards compliant? Answer: it doesn't comply with standards.
Click to expand...
Click to collapse
Amswer: OP5 doenst support any other quick charge methods (aka. QC 2.0/3.0, Adaptive Charging, Super Charging etc). It only supports normal charge or dash charge (& Vooc as dash is based on Vooc).
Also you should remember that different phones shows differently charging methods. Example Oneplus can maybe show normal 2A slow and Samsung as normal charge. Nexus 6P will show regular 3A charging as fast charging, Oneplus shows it regular charge.
For me if i use other C-cables (non-Dash charge one) it shows just "charging".
Regarding to Benson case... Original OP2 cable was non-standard. It didnt contain regular 56ohm thing. Oneplus fixed it later and dash charge cable is using standard things and also only for 3/3T/5 dash charge properties. For other phone you can use it without problems like use it to charge QC3.0 phones etc.
Sent from my OnePlus5 using XDA Labs
zige said:
Amswer: OP5 doenst support any other quick charge methods (aka. QC 2.0/3.0, Adaptive Charging, Super Charging etc). It only supports normal charge or dash charge (& Vooc as dash is based on Vooc).
Also you should remember that different phones shows differently charging methods. Example Oneplus can maybe show normal 2A slow and Samsung as normal charge. Nexus 6P will show regular 3A charging as fast charging, Oneplus shows it regular charge.
For me if i use other C-cables (non-Dash charge one) it shows just "charging".
Regarding to Benson case... Original OP2 cable was non-standard. It didnt contain regular 56ohm thing. Oneplus fixed it later and dash charge cable is using standard things and also only for 3/3T/5 dash charge properties. For other phone you can use it without problems like use it to charge QC3.0 phones etc.
Sent from my OnePlus5 using XDA Labs
Click to expand...
Click to collapse
My point isn't so much about the cable as it is the device itself. It is a USB type-c device that doesn't conform to type-c USB standards.
There will be a plethora of usb-c ports on computers and chargers going forward. They are included on every new model of Apple, PC motherboard, and OEM PC - so type-c adoption is there and real. By ignoring these standards and producing a product with a proprietary design they are ostracizing their devices, and by extension their users, from simple and convenient charging methods. It ensures lots of sales of Dash chargers though.
It's a **** move straight from the Apple playbook. Apple made billions from the 30 pin to lightning connector change, and they will do it again with the lightning to Type-C change.
This Oppo/OP Dash charger isn't something consumers should be championing. It's not something Oppo/OP should be forcing on consumers either.
Elnrik said:
Should, but I don't think it is. Q: why would the OP5 not fast charge over a normal type-c connection if it were standards compliant? Answer: it doesn't comply with standards.
Click to expand...
Click to collapse
I don't think your statement is accurate, the newer USB C Power Delivery specs allows voltages up to 20 volts and amperages up to 5 amps, the dash charger specs use 5 volts on 4 amps, well within USB C PD specs. The fact that their technology is proprietary does not mean it's not standards compliant.
There is also the very important difference between voltage and amperage, voltage is pushed to devices so it's always important that what you are using within the voltage required by the device. Amperage on the other hand is pulled by the device so the charger will allow the device to pull as much amperage as it needs as long as it doesn't go over it's own capacity. Think about your standard US outlet, it works at 120 Volts and at either 15 to 20 amps, you can connect as many 120V devices to it as long as you don't exceed its amperage.
That being said, the reason other usb cables don't work on the dash charger block is because the usb A side probably has different resistors, One + cables probably have higher resistors than regular, run of the mill usb C-A cables. That was the issue with the first cables that came out a few years ago, they had pull-up resistors with the wrong Ohm rating.
Here is a link to a PDF file explaining USB C Power Specs, keep in mind though that the eventual idea is to only use USB C-C cables and not the USB C-A cables that are the cause of so much headaches.
HueleSnaiL said:
I don't think your statement is accurate, the newer USB C Power Delivery specs allows voltages up to 20 volts and amperages up to 5 amps, the dash charger specs use 5 volts on 4 amps, well within USB C PD specs. The fact that their technology is proprietary does not mean it's not standards compliant.
Click to expand...
Click to collapse
The listed power specs are only half the picture. The negotiation between devices is critical in getting those power numbers. That a OP5 can't draw above 900mA on a fully compliant 3.1 cable from a PD capable Type-C port shows it's not compliant. Its not negotiating power draw the way a standard Type-C device should.
And yes, I've already read all the spec docs. Thanks though.
Elnrik said:
The listed power specs are only half the picture. The negotiation between devices is critical in getting those power numbers. That a OP5 can't draw above 900mA on a fully compliant 3.1 cable from a PD capable Type-C port shows it's not compliant. Its not negotiating power draw the way a standard Type-C device should.
And yes, I've already read all the spec docs. Thanks though.
Click to expand...
Click to collapse
The phone itself doesn't have to comply to anything, the chargers and cables do since they are the ones providing the charge. The standards are there to determine thresholds on how much and how little current they can work with. The circuitry on the phone and battery are the ones who tell the charger how much current they need to charge the battery without warming it too much or overcharging it. Different combinations of chargers and cables will give you a lot of different charging speeds but that's because there are so many chargers and cables with different ratings that devices err on the side of caution when they can't recognize the charger that it's being plugged into them. It's kind of a unfortunate thing that companies like Motorola, Huawei, OnePlus and Qualcomm use different charging specs but all of them work within the 15 to 20 watts of power for fast charging, so it's not a really big difference.
The reason for the difference in charging speeds between the dash charger/cable and other chargers is that 1 + charger offloads the current regulation to the charger itself rather than leaving current regulation to the phone, like other fast charging devices, that's why 1 + phones fast charge at cooler temperatures than other fast charging technologies.
Now, why your phone doesn't go above 900mA on a regular cable is beyond me, the first photo I attached is of my phone connected to the dash charger via this cable and the second one is of the same cable connected to this wall outlet.
Elnrik said:
Should, but I don't think it is. Q: why would the OP5 not fast charge over a normal type-c connection if it were standards compliant? Answer: it doesn't comply with standards.
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That's a fallacy. To comply with the standards does not mean, that everything is exactly the same. The USB-standard is a little bit more complex than just "pin 1 of one end has to be connected to pin 1 of the other end". The USB-standard defines what is allowed, so no devices will get damaged and to ensure a "minimum" data and power connectivity of let's say at least USB 2.0.
That's what these cables and chargers offer: They don't violate the USB standards. They allow a data connection with USB 2.0 also for non OP-devices. They also allow "normal power" (5V 500mA). They don't damage other devices. They just "work" as they should. But they offer "additional extras" (dash charging) when all three parts (charger, cable, phone) are compatible.
So they comply with the standards while offering additional features and that means, that other cables/chargers, which also comply with the standards but don't offer the extras, won't be able to dash charge.
Anyone tried to see whether using the oneplus cables on QC devices + QC wall plug supports Quick Charging?
I get 2a off my 3a rated PD c to c cables and 38w PD charger.
The only PD compatible android chipset I know of is made by mediatek at present.