[vebmetal]

Hi, all. Just bought a XL6 (Zeta Manual Petrol), and it comes with the Smartplay entertainment system. Have a quick question which I am hoping that someone here has been able to figure it out. To connect to the HU for Android Auto, it seems I have to connect the phone to the built-in USB port of the car. (It seems Android Auto Wireless is something newer that is still to become mainstream here). Given that, one hoped that the car's USB port would also charge the phone at some decent rate. However, as it turns out the charging on the HU is SUPER slow. To give you a a comparison, it charges my Galaxy S10+ at around 50 -100mA, while my Qualcomm car charger charges at an average of 2000-2200mA. Needless to say, 50-100mA is totally unworkable.

Is there a solution to this? Some kind of device/ adapter that lets me connect to the HU for data only and a separate connection to the Qualcomm charger for charging? Or some software based solution?

[speedmiester]

Check the USB cable you are using for connecting the car with your phone. If the cable cannot support higher charging current, then the charging will be slow.
Faced this issue in my Wife's Ignis, changed the cable to a fast charging one. Solved the issue.
Note: My wife's phone is One Plus 7 Pro and my phone is Samsung Note 9, both are power hungry.

[vebmetal]

Hmm, what I tried was an old Nokia cable with a USB-C adapter (which is giving me 50-100mA). The other cable I tried is a super fast SUB-C cable that easily gives up to 3000mA in the right circumstances. The HU did not even recognize this (hence why I am using the old cable). Let me try with another wire.

Do you use Ampere or some other amp to measure the charging current? How many mA is it giving now on the OPO 7 pro and the note 9 now?

Thanks!

[jigar]

Originally Posted by vebmetal

Is there a solution to this? Some kind of device/ adapter that lets me connect to the HU for data only and a separate connection to the Qualcomm charger for charging? Or some software based solution?

Try using an original cable or a certified cable, it should solve your problem to some extent.

[vebmetal]

Thanks for the suggestions, guys. Changing the cable did help a bit. Now it's charging in the 900mA region, which is somewhat workable at least for the moment.

I saw an interesting workaround by someone who plugged a powered USB hub in the port and then plugged his phone in the charging port of the USB hub, and this pushed him above 1000mA, though nowhere near Quickcharge levels.

My next test is going to be to plug a wireless charger and see if that will work while the USB cable is also plugged in. I know this hsould not work, ,but specifically with Samsung phones, someone online reported that the phone switches over to wireless for charging. If this works, one potential solution could be to get a wireless charging phone holder for my car. Let's see.

[RYP]

You would never get QC levels unless Maruti gets the port QC certified from Qualcomm, which means they would need to pay licensing fee to Qualcomm for each port on each car they sell, it would hurt their bottom line without any significant marketing advantage. Hence these OEM's retort to generic 10W (5V2A) charging, which in real world comes around 1000 mA speeds

[vebmetal]

Yes, I understand that. Frankly, the more I use Android Auto the more my disappointment is towards Google rather than car manufacturers. Android Auto wireless should have been the default way to do things from the get go, and it should be open to way more customization than it is. The fact that you couldn't turn off notifications till an update last month is mind-numbing! (And even now you can only have a all-or-nothing option for notifications, and can't customize, such as 'allow updates from SMS but not from Whatsapp' etc.).

[RYP]

Apart from Android for Phones, all of Google's other OS attempts are appalling to say the least - Android Auto, Android TV, Wear OS, Chrome OS are all half baked and not ready yet. But well there ain't any other company doing anything in this particular regard affordably. Apple is well Apple and Amazon is busy putting Alexa in and around everything. In a long enough timeline Android Auto is still in its infancy & best way forward is Google's got to open up the platform and let the phone OEM's customize the interface and then we'll see real innovation.

[KiloAlpha]

I think this slow charging issue is specific to Maruti's SmartPlay system. I use a Maruti car with SmartPlay infotainment system and have faced this issue. I travel to the US quite frequently and I have used Android Auto in cars from General Motors, Ford, Hyundai, and Kia. All mid-sized mainstream cars that I pick up as a rental.

In all these vehicles, I have not faced this slow charging issue. My phone charged quite quickly - the difference between charging using the original travel adopter and when plugged into the car was about 20-30 minutes. And this is in cars across all these brands.

[shankha007]

Originally Posted by vebmetal

To give you a a comparison, it charges my Galaxy S10+ at around 50 -100mA, while my Qualcomm car charger charges at an average of 2000-2200mA. Needless to say, 50-100mA is totally unworkable.

Hi vebmetal, i suppose you are using applications like Ampere to monitor the readings. The app is far from providing accurate readings. I use it only to compare the difference in output of different chargers on the same device.

However, you can use an USB power meter to get fairly accurate results. Link provided below. There are plenty of them available online, and are quite inexpensive.

XCLUMA USB Charger Doctor Mobile Power Detector Battery Test Voltage Current Meter https://www.amazon.in/dp/B074JC3G4B/..._s3OvEbECA9WG3

Originally Posted by speedmiester

Note: My wife's phone is One Plus 7 Pro and my phone is Samsung Note 9, both are power hungry.

Hi speedmiester, fast charging can be achieved either by increasing the voltage, or by the current. Qualcomm uses the voltage increasing method, and market it as Quick Charge (followed by the generation, like 3.0, 4.0). However, Oneplus/Oppo uses the current increasing method, and market it as Dash/Warp/VOOC charging. A Qualcomm certified fast charger will not be able to charge a non-QC certified device fast (like Oneplus/some budget phones), instead will charge them at regular speeds only. Similarly, a Dash/Warp/VOOC charger will only be able to charge Oneplus/Oppo devices fast, and all other devices would be charged at regular speeds. If at all the head unit of a vehicle supports fast charging, it would support either of the two, and in most cases, it is QC certified because of the wider user base. Your point of using a healthy and good quality cable is absolutely spot on as low grade cables do not allow the device to attain even the regular charging speed i mentioned about.

Regards