Develop Bugs

[Q] Problems with HTC EVO car dock and charging?

Hi, everyone:
I just got the HTC EVO car dock a few weeks ago, and I'm mostly pleased with it. One strange thing, though - it appears that the phone's battery will not charge as quickly as it used to, if it charges at all.
This evening, I tried an experiment. I had my 1A charger connected to the EVO dock, then I docked my EVO. When I go into Settings/About Phone/Status, Battery status shows Charging (USB). However, when I remove my phone from the dock and plug it into the charger directly, Battery status shows Charging (AC)!
I haven't been able to find an answer to this problem. One thread here stated it is a problem with Froyo and the dock application, that it only allows charging via USB, but I can't corroborate that. I found another thread that said it's a safety feature, that it won't charge a hot battery, but in my testing above, the battery is fairly cool and I still get different results.
Has anyone else come across this problem? Perhaps it's just a defective dock? Otherwise it's a fantastic car dock, but I'd hate to find out it has a design flaw that borks charging. Thanks!

The car dock does charge as usb mainly bc the dock has a slightly different pin set putting the phone into navigation mode ..but also decreasing contact with the port ...
Sent from my PC36100 using XDA App

I have the same car charging problem, although I don't use a dock, or the docking application. I just cannot charge in the car. The EVO reports that it is charging (AC), yet no electrons flow toward the phone from the car, as reported by both Current Widget and SnapTurbo's widget.
I've been looking for a solution to this issue for a while. The car's power port works fine. I can plug the home charger into an inverter and plug the inverter into the power port and that works perfectly. I have tried three different brands of car charger and none work. My next solution will be to find a DC12 to USB adapter and use my regular USB cable and see.
Hopefully we can get some answers.

OK, a little more info:
I installed CurrentWidget, and I logged my half-hour commute. For one log, I had the phone plugged in the Dock. For the other, I had my phone plugged in directly from the charger. For both sessions, I had 3G and GPS on, Car Home was running and I had the navigation program open. Here's what I found:
Phone in Dock average draw: -77.419Ma
Phone out of Dock average draw: +136.0588Ma
So, my unscientific conclusion is that the dock is somehow losing over 200Ma. With Nav, 3G and GPS running, that's enough to change the phone from a charging state to a dis-charging state.
I guess I'm going to return this dock. It's a shame, really, because otherwise it's a well-build, easy-to-use dock. But if it's not going to charge my phone while driving, it doesn't make sense to use.

It's not the dock, its froyo...when the dock is placed into dock mode by grounding pin 4 ANY dock that truly places the phone into dock mode will do it...I built a dock cable when the phone launched, it worked fine..now after froyo it and the HTC dock cause the usb only charging rate as well as the 3.5 jack volume fix..(won't go any louder)
It is the suck. I'm the OP on the HTC dock now available thread, I've had the thing a long time and had it apart, its power and ground with a jumper to ground pin 4..that's it..no data wires..that's also why it wont let u mount the usb...also the suck...hope that helps your problem..
Sent from my PC36100 using XDA App

Car Dock Power Issues?

Is anyone else having issues with power while using navigation in the car dock? Twice this week I've dropped my phone into the dock while fully charged, and taken a 4 hour trip using just navigation and pandora. By the time I reached my destination I had under 15% battery both times. The dock is plugged into an adapter that puts out 2.1A, and the battery on the phone indicates that it is taking a charge the entire time.

me too
I have noticed, that if I have BT, Pandora, and nav running at the same time, the draw is more than the charge, i.e. the battery runs down.
BUT
I have the att car charger, with the curly micro usb and an extra port, and a light to show plugged in. I plug the dock cable into the extra slot, and charge my plantronics using the curly cord. i tend to only pull the charger half way out when getting out of the car. I have put my phone in the dock, without plugging in the charger, and the light illuminates, pulling power from the phone. I drive on thinking the phone is charging, while using bt, pandora and nav, pulling on battery the whole time, and then wonder why my batery is so low when I get to the office.

[Q] HD Dock = Battery Drain??

[SOLVED] I just picked up the HD multimedia dock for my Atrix and have been using it in the evenings with my phone and love it! I have noticed that strangely it drains my battery! Much faster if streaming Hulu or something though. Yes, the power supply is attached
Have you experienced this? When I sleep the phone, it will charge it to 100%. Wondering if I have a dud. Wanted to find out if this is "normal" before I try to reach Motorola for warranty.
UPDATE - I failed to mention that I was using one of those wonderful Chinese cells I got on Ebay in the phone. Once I placed my OEM battery into the phone, the discharge appears to have gone away. Updated this post just in case someone searches for this in the future.
TJD

did you plug the dock into the wall? It suppose to charge your phone also, not drain it. Double check if you got an A/C adapter with it

Indeed as my question stated, it is plugged into the adaptor and it will charge to 100% once I turn off the screen.
By the lack of folks chiming in, I assume I got a faulty wall wart, so will start the process of figuring out how to exchange the power supply under warranty.

the dock can be kinda funky sometimes when it is plugged in. watch your battery icon to make sure it is charging when it goes into the dock. There are some comments about this on the motorola site. Sometimes I have to unplug the adapter and plug it back in until a couple of times before the charger "kicks in". the mods on that forum suggest plugging directly into the outlet, not a power strip.

Car Charger that works for navigation and Bluetooth

I'm looking for recommendations for a car charging cable that will keep the phone charged with the screen on and Bluetooth and GPS running. I have tried both a no name branded and a Samsung OEM car charging cable, and in both cases the phone discharges, not as much with the Samsung but it is still not really usable for long distance navigation.
What do you all recommend for car charging that will stand up to screen/Bluetooth/GPS use?
Sent from my GT-N7000 using Tapatalk 2

Look on Amazon for Griffin charger,make sure the output is at least 1000mha, i have the dual usb port one and it works perfectly well, though charging may be a bit slow on navigation + bluetooth music the same time.
Sent from my GT-N7000 using xda premium

I'm using simple 1mA micro car charger and my phone keeps charging (slowly but surely) with bt and satnav on (sygic aura). The trick I'm using is a Voltage Control CPU profile (underclocked to 1.2mHz and slightly undervolted) while I'm running satnav for hours. It's more than enough for that purpose.
EDIT: There are 2mA micro USB chargers now available. I'm sure they should pack a punch enough to charge anything no matter what ur running on ur phone:
http://www.ebay.co.uk/itm/2000mah-2...neChargers&hash=item20cb96c4a9#ht_1838wt_1004

I used psp charger.. 1.2mah

Wireless car charger with a on/off switch

Hi there. I'm looking for a wireless car charger that has an on off switch for the charging function. A lot of them seem to have motorized grips that need power still but I don't want to always be charging my phone when I put it in the mount. Do any of you know of a charger that does this? I'm in the USA.

stab244 said:
Hi there. I'm looking for a wireless car charger that has an on off switch for the charging function. A lot of them seem to have motorized grips that need power still but I don't want to always be charging my phone when I put it in the mount. Do any of you know of a charger that does this? I'm in the USA.
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You could just unplug the charger from usb/charge source... And get manual grip. Why wouldn't you want to always charge it though?