Vi10 Pro charging issue

[UserAnon]

I found that most of the problem might be generated by connected standby.
The main issue is that the tablet has a drain of ~4500mWh to ~5000mWh during hard use. Skype, 2-3 pages (not flash) opened, Outlook generates around 2500-2900mWh drain.

Basically given that the battery is 3.7V the drain is: ~1351mAh drain hard use and 675mAh this mean 1.3Ah and 0.6Ah both well above the amps that a 5v 2A outputs but still the battery fails to charge.
Having a 5v 2A charger will lead to a ~10000mWh potential.
Something is not ok here.

I will try to get a 5V 6A charger and see if the charge rate will increase

[T. Money]

On other posts on here people suggest changing the stock cable, or using a shorter cable.

This is because a the cable sent with the tablet is cheap and is rated to deliver less current than the charger can deliver.

Give it a try. In my case using a different cable made did make a difference.

[UserAnon]

@Telmo: do tell, how do you think that a shorter cable will help ? do you know any physics at all ? you do realize that the resistance of the wire is almost 0 for shorter them 1m cables ? does it prevent overheating ? does it make the electrons move faster ? does it make the sun outside shine brighter?

Also instead of posting in every post in the main page consider actually helping

[T. Money]

UserAnon wrote:

@Telmo: do tell, how do you think that a shorter cable will help ? do you know any physics at all ? you do realize that the resistance of the wire is almost 0 for shorter them 1m cables ? does it prevent overheating ? does it make the electrons move faster ? does it make the sun outside shine brighter? Also instead of posting in every post in the main page consider actually helping

Stop being such an irate TROLL. (corrected for you Sajuuk, so you can sleep better at night, without momma’s hugs)

You don’t understand physics. Thicker guage cable is rated to carry higher amperage loads – and this is the base reason as to why people recommend changing the cheap cable that comes with the Chuwi Vi10.

USB cables have a data wire and a charging wire within the cable itself. Most USB cables, probably over 99+% are 28/28. Buying after market micro USB cables will pretty much always result in getting cheap quality 28/28 cables and your device will barely break 500mah when it charges, maybe even less.

This isn’t the only issue though. After you use a cable for a while it pushes slight stresses on the micro USB connector itself and compresses it. This causes poor connectivity between your device and the wire. This is why it seems like your device port feels like it’s getting loose and you think something is wrong. It’s most likely the cable being slowly damaged over time.

Solution? Get a 28/24 gauge cable. 24 gauge is ~ 60% larger and can handle 2amps. This is what is usually sent when you buy a tablet or large phone device. Your wire slowly gets damaged over time or may even stop working entirely. You order a cheap cable off Amazon or eBay and it never appears to charge at the correct speed anymore.

For the longest time I always thought my actual chargers were slowly dying and my charging speeds were getting worse but it turned out to almost always be poor quality cables.

READ AND LEARN

[UserAnon]

@Telmo: http://www.powerstream.com/Wire_Size.htm

This mean you can push 1.4amps on the 28 gauge wire that also means you can push ~7000mWh to the tablet at 5V. I bet nobody on this forum saw more then ~4500mWh when charging.

Also by “irrate” did you mean irate or irritable ?

[T. Money]

Oh Sajuuk, how cute

Have you taken apart the cable that came with the Chuwi in order to see what guage wire comes inside? Post a picture and then we can talk about your understanding of “physics and math”.

I love how you post AWG ratings, as if that was an answer for your “informed” post above. You are wrong – just accept it.

irate or irritable works for me – either way your responses are a joke. Pointing that spelling mistake doesn’t take away from the hilarious nature in which you post – as if you “know” better.

Also you realize that your calculations are based on a widget that estimates discharge and charge rates right? So your math is based on an inaccurate statistical reading. Unless you can actually extract that information from a load measuring circuit or a smart battery with an ACPI driver that actually gives windows that information, you are pulling that information out of where? your butt

[UserAnon]

@Telmo: that widget combined with measured charge times gives you the answer but I guess I can’t appeal to any of logic. Do tell the difference between the wires length, gauge, material you used backed up by the widget charge ratings and times why not even measured loads via an ampmeter. Your mouth better not give out checks that you actions, knowledge, time and logic can’t cash.

[T. Money]

UserAnon wrote:

@Telmo: that widget combined with measured charge times gives you the answer but I guess I can’t appeal to any of logic. Do tell the difference between the wires length, gauge, material you used backed up by the widget charge ratings and times why not even measured loads via an ampmeter. Your mouth better not give out checks that you actions, knowledge, time and logic can’t cash.

If my mouth gives out those checks Sajuuk, what are you gonna do about it? Cry? Insult me? or keep arguing when your original statement is proven wrong by, you know, a world of other people who have actually looked at the topic of cables and come to the same conclusion as other people on here.

Here is your original statement:

UserAnon wrote:

@Telmo: do tell, how do you think that a shorter cable will help ? do you know any physics at all ? you do realize that the resistance of the wire is almost 0 for shorter them 1m cables ? does it prevent overheating ? does it make the electrons move faster ? does it make the sun outside shine brighter? Also instead of posting in every post in the main page consider actually helping

Here is the answer to your question:

Cheap USB cables can be slower for charging devices vs quality cables due to the guage of wire used inside the cable. People on here had mentioned changing the cable gave them better charge times – So why do you argue? Because you think you know better.

Here is why:
READ ME SAJUUK PART1

READ ME SAJUUK PART2

Its OK to be wrong Sajuuk – you don’t have to get upset and insult other people. Open your mind and educate yourself a bit – don’t worry, it doesn’t hurt.

[UserAnon]

@Telmo: Once again I point you to me asking for actual data to backup you statements. Please provide a list of cable used, gauge material and measure charge rates amps and time. Unless you are able to provide stop posting crap

[T. Money]

UserAnon wrote:

@Telmo: Once again I point you to me asking for actual data to backup you statements. Please provide a list of cable used, gauge material and measure charge rates amps and time. Unless you are able to provide stop posting crap

Why don’t you actually post that then? To see where your data shows that you are right? Why don’t you actually post your charge time with a different cable just to prove everyone on the internet wrong?

Wait don’t tell me, you won’t now, just because I said it.

I don’t have to post any data because I just gave you a bunch of real information from people who know what they are talking about. Not just some crap taken from BatteryBar widget and some made up math from something you have no clue about.

You’re a troll, and you can’t deal with being wrong – and this is why you react this way.

Here is some actual data Sajuuk

But I’m sure you’ll say its junk and you’ll want me to post it myself – because you’re a genius and all that.

[T. Money]

Here is some data from the post, in case you know Sajuuk decides he knows better without actually reading or doing any research.
Someone measured the current while charging while using different cables (there by proving the point that cable quality/size matters, as noted by other users on THE INTERNET) and also using different chargers (generic vs manufacturer)

The results speak for themselves.

Charger……………….. Cable……………. Current (A)
=====================================
HTC 1A……………..Generic………………… 0.5
HTC 1A……………..Samsung S4…………..1.0

Apple 1A……………Generic………………….0.5
Apple 1A……………Samsung S4…………..1.0

Apple 2.4A…………Generic………………….0.6
Apple 2.4A…………Samsung S4…………..1.3

Samsung S4………Generic…………………. 0.8
Samsung S4………Samsung S4……………1.3

So as you can see from these results, the original charger makes a difference, and the supplied cable (or a good quality shielded one) makes a further difference. If you have any further findings please feel free to add them here.

[Billy Larry]

After charged up to 100% (finally I’d got a Samsung charger and its cable) and switched it back on to read the post of this thread after 24 hours, it shut down again.

One finding is: switched off the tablet, there still have voltage supply from the 2 USB Type-A ports to power up my RC flight controller, telemetry receiver (each of them requires 5V o.5A) and/or a mouse etc..

I am wondering the stock keyboard will drained the power when the tablet is off?

[T. Money]

It is a known behavior with most USB ports on PCs that by leaving cables plugged in, when the computer is in a low power state, you can still drain the battery significantly. This explains why you see your telemetry and what not (APM i assume or Multiwii?) still pulling power.

The keyboard probably does have some drain but its minimal – however if you unplug it, and empirically test it, I’d bet you’d find it doesn’t drain as much as with the keyboard plugged in

Also its pretty important to note what processes you have running in the background and also what your power settings are.

How long before the computer goes into Sleep, how long before the computer goes into Hibernate? Do you have Adaptive Brightness enabled? Whats your power settings within the Intel Driver Application?

As for the charger, what is the amp rating on that charger you switched to? Is it a samsung charger for tablets or for phones?

[Billy Larry]

What I am talking about switch off the system is not press the power button once and leave the screen goes to sleep. On Windows OS, goto Start/Power/Shut Down. On Android OS, press the power button till the pop up ask me if I am going to power it off then touch YES.

After shut down the tablet, sufficient power for Pixhawk PX4 and its telemetry Tx/Rx up and running from the USB ports. I connected the the FC and telemetry at the same time to the usb ports only to confirm both the usb port still have current after shutting down.

And, I am not using USB keyboard but the docking one from Chuwi. So, it makes me think if the keyboard drain up the power.

The charger is the stock one for Galaxy Tab 3 which supply 2A current.

[freeware]

I think, there is a dirrerence in the chargers quality too. I had a Chuwi vi10 32GB. A lot longer to charge. With my Lenovo p780 charger too, and from pc usb 3 port too.

Now i have a Chuwi vi10 pro 64GB. With both charger i can charge normally when i use Windows 10/droid. (avarage usage, web browsing+winamp+office) The old chuwi rather exhausted than charged.

In quality there are differencies. For example in 32gb version was noname emmc, 40/40 speed,now in pro version Samsung ~160/80 MB/s. And no buzzing with 3.5 jack.

[Author]

Posts