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Car charging problem - not being charged

Hey, I don't know how to force to charge tablet in the car.
I use 2.1 amper car charger. After I plugged it to the tablet I got either red cross or just info that tab has been connected.
I know trick to mount USB partially, sometimes it works and there is no red cross, however I noticed in Battery Monitor Pro:
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You see tab's been plugged, it shows "USB connected" and "Discharging" however power depreciation is still high.
When there is no red cross (I mount USB stick partially). Then charge rate is very low - 0.5-0.6 ampers instead of 2.1.
Charger is working good, I tested it.
How to force it to be charged at full rate? I worry about GPS power consumption - Sygic+Locus Pro = more than 1 amper depreciation, so this is matter of time till tablet will go off. The worst scenario... during road trip.

You need something like this with 2.1 amp
http://www.androidguys.com/2011/09/14/charge-phone-tablet-car-bracketron-dual-usb-charger/
Or this Belkin one
http://www.belkin.com/us/p/P-F8M114
Or the oem Samsung for the galaxy tab, which should also Work with tab 2
http://www.mobicity.com.au/samsung-car-charger-for-galaxy-tab-10-1.html
Here is a helpful guide too
http://www.matthewb.id.au/smartphone/tablet-charging-guide.html
Sent from my C6603 using Tapatalk 2

Thx, but are you sure that Dual USB charger will give me full 2.1 amper (or min 1A)? I have 2.1 A charger but it gives only about 500-600 mA. I've heard due to USB cable pins made for Apple products (even if it is universal one).

Burgscheinkerkdeiktraast said:
Thx, but are you sure that Dual USB charger will give me full 2.1 amper (or min 1A)? I have 2.1 A charger but it gives only about 500-600 mA. I've heard due to USB cable pins made for Apple products (even if it is universal one).
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I just played around with making a wireless charger. It is 1 amp and it will charge the 7" tab2. My 850 mah wall charger will charge it as we'll. both show an x over the battery but they charge. The secret is the data wires. They need to be connected together. I modified a cable for a car one time to do this, but many car chargers today do it for you.
The tab 2 will charge off less as it can charge off a pc USB port at only 500mah, so it is not the amps.

Possible solution for chargeing issue
Burgscheinkerkdeiktraast said:
Hey, I don't know how to force to charge tablet in the car.
I use 2.1 amper car charger. After I plugged it to the tablet I got either red cross or just info that tab has been connected.
I know trick to mount USB partially, sometimes it works and there is no red cross, however I noticed in Battery Monitor Pro:
your like was here sorry had to remove ]
You see tab's been plugged, it shows "USB connected" and "Discharging" however power depreciation is still high.
When there is no red cross (I mount USB stick partially). Then charge rate is very low - 0.5-0.6 ampers instead of 2.1.
Charger is working good, I tested it.
How to force it to be charged at full rate? I worry about GPS power consumption - Sygic+Locus Pro = more than 1 amper depreciation, so this is matter of time till tablet will go off. The worst scenario... during road trip.[/QUOTE]
Pardon me but but you have a Samsung Galaxy tab 7 plus looking at your other posts. My P6200 only charges from 0.9A lower limit to 2.02A upper limit at 5vDC if your amps go lower or higher you get that red cross
I get best results at 2.0Amp charge and no more. otherwise battery only takes in 0.5 to 0.6A which I see you observed the same with battery pro I did it with a external power supply that reads drawn current
P.S I know I am late hope it helps somebody else
P.P.S first post
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Car charger that wont drain w/ GPS use?

New One S owner here. I'm finding that when using my One S in the car running Google Navigation (GPS), the battery is draining even when plugged into my car charger. I specifically purchased a name-brand, 950ma charger to try to avoid this problem (using this charger from Motorola), but it still seems to slowly drain if I use navigation, have the display on, etc.
Does this happen to anyone else?
Any recommendations for chargers that WILL work?

You'd really want a 2 Amp charger for that I think, 950mA is only just enough to charge the phone when it's not in use.

Latest update: I purchased this Powergen charger, which is supposed to be able to deliver up to 3.1 amps.
Tried it last night in my card running Google Navigation, and the batter STILL drained; slowly, about 3% over 45 minutes, but it was indeed draining. Wasn't running anything else except Google Nav; screen was on (obviously) and I did have bluetooth enabled and paired with my car's system, but I wasn't using the phone for calls.
Guess I'll repeat my request:
Does this happen to anyone else?
Any recommendations for chargers that WILL charge the phone while running GPS/navigation apps?

larrycl said:
Latest update: I purchased this Powergen charger, which is supposed to be able to deliver up to 3.1 amps.
Tried it last night in my card running Google Navigation, and the batter STILL drained; slowly, about 3% over 45 minutes, but it was indeed draining. Wasn't running anything else except Google Nav; screen was on (obviously) and I did have bluetooth enabled and paired with my car's system, but I wasn't using the phone for calls.
Guess I'll repeat my request:
Does this happen to anyone else?
Any recommendations for chargers that WILL charge the phone while running GPS/navigation apps?
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Yep, I have the same problem, although for me it's draining like 10% / half an hour. This is pretty annoying. My device also gets very hot (very hot = 50°C +)
I have a brand charger from Hama, so I really don't know where the problem is.

Same problem here too. Charging isn't possible (-10% per hour) and it also gets really, really hot. Don't know if I should charge my phone any longer because of the heat... Has anyone got a solution yet?

TerrorApple said:
Same problem here too. Charging isn't possible (-10% per hour) and it also gets really, really hot. Don't know if I should charge my phone any longer because of the heat... Has anyone got a solution yet?
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This might be a flaw of the phone. Happens to me too.

So you think it's okay charging the phone?

I have found the same thing. All my DC chargers will not charge, only maintain a slow drain, with GPS running.
However I have a monoprice external battery pack model 9531, that does charge even with GPS and bluetooth enabled. I have also noticed that using this in other circumstances it charges the phone faster than any of my AC chargers as well regardless of the state of the phone.
I could not like the monoprice page for it but I believe they still make it. Here is a picture. Hope this helps.
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Has anyone tried GPS with Bubba or some of the other kernels that have fast charging? Maybe those would do the trick?

Most Car chargers are internally wired for Apple products ( data ports have current on them tot tell the Apple product what the charger capacity is ). Android phone do not recognize this, so they fall back to USB charging (500ma).
Look at the phone battery settings when charging. Doesvit say USB or AC ?
Verstuurd van mijn One S met Tapatalk

Nexus 4 gets really hot when Qi charging.

I got my Qi pad yesterday in; this one specifically:
http://www.ebay.nl/itm/380712337929
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But the phone gets extremely hot after a short time. When charging by wire it's a little higher than the environment temperature: 22-25C = 71-77F (depends on trickle charge or duration charge of course), but when charging it over the Qi Pad the battery goes up to 42C=107F (and it went hotter the night before, but didn't check the temps back then).
I also notice it really jumps in terms of magnetic field. Now it's a minute I receive about 60 microTeslas of magnetic field, then it's a minute with 200 microTeslas.
Is this a normal for Qi charging? or is there something wrong and rather shouldn't use the pad?

how do you detect how strong your magnetic field is?

convolution said:
how do you detect how strong your magnetic field is?
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https://play.google.com/store/apps/details?id=com.eclipsim.gpsstatus2
Great toolbox honestly, tried a few, foumd this one to be so good I bought the pro version to support the dev. Temps might be a pro-only feature though, not sure.
And lol you already knew the app as you put it in your copied GPS fix guide.

The temperature range you provided is typical of induction charging. My N4 tends to be in the 100-110F range while charging wirelessly. Some heat is generated/energy is lost when transferring energy via induction.
The phone will communicate with the charger to draw the right amount of current depending on the battery state.

wx27 said:
The temperature range you provided is typical of induction charging. My N4 tends to be in the 100-110F range while charging wirelessly. Some heat is generated/energy is lost when transferring energy via induction.
The phone will communicate with the charger to draw the right amount of current depending on the battery state.
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Alright, then I know there is nothing wrong with the pad. It's a cheap chinese one after all.

even with the nexus charging orb, my nexus4 gets hot when using it. i think it's normal for the head to dissipate across the phone and the charger

That's a weird looking foot.
Sent from my Nexus 4 using Tapatalk

i use my gf's samsung qi charger and its the same. i dont know the exact temperature but i usually have to let it sit off charger for a a few seconds before picking it up as the back is extremely hot to touch.

alright, then I know it's normal, but I doubt it's healthy for the battery lifespan :/. Batteries usually degrade a lot when exposed to heat.

HTC U11 charging current drops very low when QC 3 kicks in

Hi
I have problem with charging on my U11 with the stock charger and my anker charger with QC3. If i use the normal ports without QC3, I can get 5v and almost 2A.
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But on the voltage bumps up to 7.5v, the current drops drastically to 0.1-0.3a and it wont charge to 100% overnight. I am thinking my phone is having problem as it behave the same on 2 chargers. Any thoughts?
(The picture shows higher current because my phone is on and camera app is running. If phone is off, current is 0.1 to 0.3A)

If the battery is near full you won't get full power. It ramps down to prevent over charging. QC3 is dynamic charging and uses a negotiation routine.
Beamed in by telepathy.

shivadow said:
If the battery is near full you won't get full power. It ramps down to prevent over charging. QC3 is dynamic charging and uses a negotiation routine.
Beamed in by telepathy.
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While what you said is indeed true, that's not exactly the case the OP is experiencing. I say this because he won't charge to full even overnight. Sure, 99% to 100% takes slightly longer, but I believe it's definitely under 5 minutes.
OP, let me share my experience. I have one original HTC charger, one non-original HTC branded charger (half the price of an original, I don't care if it's a fake as long as the quality holds up), and a Xiaomi powerbank that supports two-way QC3.0 (meaning it quick-charges devices but can also be quick-charged itself).
1) The original charger and non-original both work perfectly, quick-charging my HTC U11.
If I charge this Xiaomi powerbank with a normal charger (5V/2A), it also quick-charges my HTC U11 almost as well as the wall chargers.
2) But, if I quick-charge the Xiaomi powerbank itself with a QC3.0 charger (18W), such as the two wall chargers mentioned above, then I have the same issue as you- namely that the powerbank becomes unbearably slow in charging the U11.
3) The way to fix this is to have the powerbank use up all its power then be recharged by a normal charger as in 1). Another way is use the powerbank to charge a normal device, one that doesn't use quick-charge. In both these cases the duration must be for over 2 hours, after which I suspect the "safety mechanism" of the Xiaomi will deactivate and make things normal. Obviously I'm not too happy with this powerbank so will be returning it shortly.
So OP you might wanna try something like charge your phone fully first with non-QC, and the same for your powerbank. Then try charging the phone again using said powerbank.

Charging speed

To power up, you consume Red Bull. But your phone just needs its adaptive fast charger. Rate this thread to express how quickly the Xiaomi Mi 9 can charge. A higher rating indicates that it charges extremely fast.
Then, drop a comment if you have anything to add!

Really want to know what protocol of the optional 27W wired charger (MDY-10-EH)
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If uou want the info on the Mi 9 power supply. Seems QC4+ but only paid licencing for QC3

So are other 27W chargers (like this: https://www.amazon.de/AUKEY-Ladeger...?ie=UTF8&qid=1552148377&sr=8-1&keywords=PA-Y8) working aswell?

memocatcher said:
So are other 27W chargers (like this: https://www.amazon.de/AUKEY-Ladeger...?ie=UTF8&qid=1552148377&sr=8-1&keywords=PA-Y8) working aswell?
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If you don't already have one why bother buying it?
For that money you buy the 20W wireless charging pad + cable + original 27W Xiaomi charger set from Ali. - LINK

I charged yesterday, from 1% to 100 % within 61 minutes. Box charger (chineese). Phone was ON, screen was off, I checked the level of charge a couple of times, but I doubt that it would charge quicker without it. I am thinking of checking on a phone OFF, how much will be the difference.

Seems OnePlus Dash charging is a lil bit faster.

I've got a 27 watt Motorola charger which is £20 quid on Amazon. Much faster than the 1 included in the box. For the money the Xiaomi is virtually flawless.

memocatcher said:
So are other 27W chargers (like this: https://www.amazon.de/AUKEY-Ladeger...ie=UTF8&qid=1552148377&sr=8-1&keywords=PA-Y8) working aswell?
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It should

I've measured the charging with the supplied 18W charger, and (at least mine) charges with 20W total, which I find super. So, with the same 18W charger, MI9 charges about 10% faster than my MI 8.
It takes less than an hour for full charge (from 3%).
So, I think I do not need the (very expensive) 27W one.

Fast charge

after miui 12 and edl flash there is no fast charging available so tried to check the cable and adaptor.
Interesting! with a Samsung fast charger adaptor my phone didn't charge. . . and stopped working.
so I am confused is it a firmware bug or a faulty adaptor or e.g phone has malfunction or etc?

My phone takes around 90 minutes with the 18W charger, which is pretty good coming from a P9 Lite without fast charging capabilities at all!