Develop Bugs

[Q] Car charger recommendations

Hello. I'm trying to pick a car charger that would work with the galaxy nexus. from what I've read so far the samsung CAD300UBEB/STD model seems to do the trick but a few review says that the battery discharges faster than the charger can charge it back under heavy usage. can anybody confirm or deny this?
and also, I would like to know if that same charger would work for a galaxy S2. I'm looking for a charger than can be used with both models because I have both phones. the listing of models in amazon website doesn't list the nexus or the S2. so I want to make sure before buying it. thanks!

I'm also interested. I was just looking at this discussion on Reddit taht goes a little more in depth
http://www.reddit.com/r/Android/comments/nwerk/why_is_my_galaxy_nexus_losing_power_while_plugged/

KidCuda said:
I'm also interested. I was just looking at this discussion on Reddit taht goes a little more in depth
Click to expand...
Click to collapse
The motorola charger listed there seems work well for the nexus and also for the S2 according to amazon reviews.

I went with one of these and a USB cable, and it seems to work just fine. Also gives me a spare USB port for additional charging.

mb_3000 said:
The motorola charger listed there seems work well for the nexus and also for the S2 according to amazon reviews.
Click to expand...
Click to collapse
I have the Motorola one already (the one with the blue LED) when I had my Droid 3, now it can't keep up with the Nexus' power drain. Just using it moderately on 3G only in the car today had it drain 3% over 40 minutes.

TheKaz said:
I went with one of these and a USB cable, and it seems to work just fine. Also gives me a spare USB port for additional charging.
Click to expand...
Click to collapse
not according to this guy
I have a galaxy nexus cell phone which requires probably around 1.5 Amps when using GPS. The phone does not come with the car charger. It only comes with a 2A wall charger. My temporary solution has been to use a car power inverter that has house-type outlets on it (which I already had) so that I can use the wall charger in the car. This has been working fine, but for obvious reasons, is not my desired long-term solution.
Enter this piece of crap. Now, the phone and only requires a little over 1 A with GPS. With the real two amp wall charger, I am able to both run GPS and charge the battery pretty darn fast. But, with this charger, not only can I not use GPS without draining the battery, but even when not using anything special, the battery charging times are horrendous.
Stay far, far away.
Click to expand...
Click to collapse

mb_3000 said:
not according to this guy
Click to expand...
Click to collapse
Wow... granted, I am not using a GPS, but I never really checked the charge times. I don't rely on it for a fast full-charge.. usually just plug it in on the trip home and charge as much as it can until I plug it in at home.
Thanks for the heads up.. I am gonna have to keep an eye on it now.

TheKaz said:
Wow... granted, I am not using a GPS, but I never really checked the charge times. I don't rely on it for a fast full-charge.. usually just plug it in on the trip home and charge as much as it can until I plug it in at home.
Thanks for the heads up.. I am gonna have to keep an eye on it now.
Click to expand...
Click to collapse
I've researched this pretty thoroughly, and the key question is whether or not your GN shows "AC" when you check the Battery status, or if it shows "USB."
With most car chargers, it is seen as "USB" as if it's plugged into a computer, and will draw minimal current, generally not enough to keep up. I had 2 different chargers in my cars, none of which showed as "AC". I bought and then returned the Griffin PowerJolt Dual USB Micro Charger - it also showed as only "USB."
Finally, in one of the other Android forums I've been monitoring on this issue, somebody came across this one:
HTC T-Mobile myTouch 3G Car Charger
$3.12, free shipping. Mine came yesterday, plugged it in, and finally my GN showed charging as "AC".
Hope this helps!

When your smartphone shows your charger as ''USB'' this means that the USB data lines in the charger are not short-circuited. Then smartphone reduces its charging current to avoind any problems with USB laptop power sources
I made some experiments to check this point : see http://78michel.unblog.fr/?p=184.
I also opened a car charger and short-circuited the data lines on USB the plug . That way I have solved my previuos charging problem in my car during long trip.

DLCPhoto said:
I've researched this pretty thoroughly, and the key question is whether or not your GN shows "AC" when you check the Battery status, or if it shows "USB."
With most car chargers, it is seen as "USB" as if it's plugged into a computer, and will draw minimal current, generally not enough to keep up. I had 2 different chargers in my cars, none of which showed as "AC". I bought and then returned the Griffin PowerJolt Dual USB Micro Charger - it also showed as only "USB."
Finally, in one of the other Android forums I've been monitoring on this issue, somebody came across this one:
HTC T-Mobile myTouch 3G Car Charger
$3.12, free shipping. Mine came yesterday, plugged it in, and finally my GN showed charging as "AC".
Hope this helps!
Click to expand...
Click to collapse
It helped indeed, thanks for the link!

this is what i bought: http://www.amazon.com/gp/product/B000S5Q9CA/ref=oh_o03_s00_i00_details
i've used it now 4 times, twice on a trip from south florida to orlando.
It charges the phone just as fast, if not faster than my home charger. On the way back, my phone was at 35%, within 2 hours it was back up to 100%. No GPS and a couple phone calls.
on the way up, GPS on and it never dropped below 97%.
so i can tell you without any doubt what-so-ever that this charger works perfectly with the galaxy nexus and will charge it with Navigation and phone calls running.

TheKaz said:
I went with one of these and a USB cable, and it seems to work just fine. Also gives me a spare USB port for additional charging.
Click to expand...
Click to collapse
I bought a charger very similar to this one and it works great in my car. I make sure any charger I get is rated 5V DC at 1000mAh at least.

I have 2 USB 2.5A dongle chargers, one by Belkin and the other by Kingston. Both register as charging via "USB mode" and do not provide sufficient power while the phone is in use(loses charge usually). I also have that Motorola Rapid charger but the way the cable is designed it tugs on the USB port and comes loose often. I ended up just using the normal USB cable that comes with the phone and a 140W power inverter. Granted, it's not the most compact of devices, but it works well. I got it from Walmart for $20. Here's a link to it:
http://www.walmart.com/ip/Schumacher-XI14-Power-Inverter/15140199?findingMethod=rr
(and yes, using a power inverter will have the phone registering as "charging AC" and give a full proper charge.)

I'm using a Scoshe (sp?) dual USB port charger I picked up from Staples. It has a 1amp port and a 2.1amp port and I just use the micro usb cable the GNex came with

neok44 said:
this is what i bought: http://www.amazon.com/gp/product/B000S5Q9CA/ref=oh_o03_s00_i00_details
i've used it now 4 times, twice on a trip from south florida to orlando.
It charges the phone just as fast, if not faster than my home charger. On the way back, my phone was at 35%, within 2 hours it was back up to 100%. No GPS and a couple phone calls.
on the way up, GPS on and it never dropped below 97%.
so i can tell you without any doubt what-so-ever that this charger works perfectly with the galaxy nexus and will charge it with Navigation and phone calls running.
Click to expand...
Click to collapse
Thanks! that's what I wanted to hear. I'm getting this one. it works for both Nexus and GSII

trueislander said:
I'm using a Scoshe (sp?) dual USB port charger I picked up from Staples. It has a 1amp port and a 2.1amp port and I just use the micro usb cable the GNex came with
Click to expand...
Click to collapse
Does it charge as USB or AC with the scosche? I'm looking for a dual USB car charger that will work properly with the GN.

jhuynh said:
Does it charge as USB or AC with the scosche? I'm looking for a dual USB car charger that will work properly with the GN.
Click to expand...
Click to collapse
There was another thread, I think in the General that discussed all of this, what people came up with was the best combination if you want a dual port usb charger is to make sure you have a "charging only" USB cable. This cable will not make your phone think it is connected to a computer. You can tweek a data/charging cable to work but some people messed that up so it is probably worth just spending the $4 on a cable that works.
Here is my combination that works great. With this set up I can have on my navigation going with the screen on the whole time and stream Pandora over Bluetooth into my car and the battery still charges really quickly.
Dual USB Port with a 1 amp port and a 2.1 amp port (2.1 amp port is for tablets or power hungry devices - like the phone while navigating). http://www.amazon.com/gp/product/B0056VNVV8/ref=oh_o01_s00_i01_details
Charging Only USB cable:
http://www.amazon.com/gp/product/B003VYBCAY/ref=oh_o00_s00_i00_details
This combo has me as "Charging AC" whenever I am in the car and I still have a port open to charge another one of the 27 or so different electronic devices that seem to clutter my life!

Some details on the changes I made on my car chargers
Text is in french but photographs speak by themselves http://78michel.unblog.fr/?p=212

jhuynh said:
Does it charge as USB or AC with the scosche? I'm looking for a dual USB car charger that will work properly with the GN.
Click to expand...
Click to collapse
Just like bmolly said, it works as AC is you use a "charge only" cable

bmolloy said:
There was another thread, I think in the General that discussed all of this, what people came up with was the best combination if you want a dual port usb charger is to make sure you have a "charging only" USB cable. This cable will not make your phone think it is connected to a computer. You can tweek a data/charging cable to work but some people messed that up so it is probably worth just spending the $4 on a cable that works.
Here is my combination that works great. With this set up I can have on my navigation going with the screen on the whole time and stream Pandora over Bluetooth into my car and the battery still charges really quickly.
Dual USB Port with a 1 amp port and a 2.1 amp port (2.1 amp port is for tablets or power hungry devices - like the phone while navigating). http://www.amazon.com/gp/product/B0056VNVV8/ref=oh_o01_s00_i01_details
Charging Only USB cable:
http://www.amazon.com/gp/product/B003VYBCAY/ref=oh_o00_s00_i00_details
This combo has me as "Charging AC" whenever I am in the car and I still have a port open to charge another one of the 27 or so different electronic devices that seem to clutter my life!
Click to expand...
Click to collapse
Thanks for this. It's been driving me mad how car chargers and cables are so inconsistent. Pun intended.
Seriously, why can they come up with a standard and call it a day?
I have a had a few GPS/Pandora runs. Even while it says AC charging and my charger is rated for 1A, it drains the battery by 300-400ma.

P605 Charging Issues - Voltage?

I've had some trouble charging my new tablet.
When I first received the tablet, I plugged it in to the supplied cable and allowed it to charge to 100%.
I used it for a day to run the battery down.
I then left it plugged in to the computer with a standard cable for 11 hrs.
It appears that it didnt charge at all.
Now I drove all the way back to my office to test it again with the factory supplied cable and it does appear to be charging slowly but it is totally discharged.
I've experienced intermittent issues with charging. Seems like it prefers but doesnt require the samsung charger/cable. Are the voltages and everything the same?

Yeah, seems like it wont charge on a usb port. Only seems to rocognize the supplied samsumg charger...

Apache0c said:
Yeah, seems like it wont charge on a usb port. Only seems to rocognize the supplied samsumg charger...
Click to expand...
Click to collapse
Do you see that the battery icon has a red X over it when you have it plugged into the computers USB port. The tablet needs the power that the supplied Samsung charger puts out to charge that big battery.
On page 9 of the users manual it says "Note: You cannot charge the battery using the USB cable and
your PC"
.

so is it just a 2A usb charger?

When it's got the red cross over the battery symbol (when it's plugged into a computer USB or car charger etc) it does still charge, but very slowly. Probably only with the screen off.

Apache0c said:
Yeah, seems like it wont charge on a usb port. Only seems to rocognize the supplied samsumg charger...
Click to expand...
Click to collapse
It charges with any standard charger. I use non-samsung charger and it charges fine, in fact I have not removed the original charger from the box.
As with USB it does charge but really slowly, while it shows not charging.

I believe that a standard USB is 1A and the note 2014 is 2A. Can anyone confirm?

Apache0c said:
I believe that a standard USB is 1A and the note 2014 is 2A. Can anyone confirm?
Click to expand...
Click to collapse
Yes, this is correct, my standard Galaxy S4 is 1A, however a computer may put out even less than this.

Apache0c said:
I believe that a standard USB is 1A and the note 2014 is 2A. Can anyone confirm?
Click to expand...
Click to collapse
No. Standard USB 2 port supplies 0.5A. USB 3 port will supply like 1.5A or less. As for USB 2, you may install (if motherboard supports it) ASUS Ai Charger so that it supplies 1A.
I have gigabyte mb and it has its own driver to over supply usb 2 current. With that I have about %6/hour charging rate if screen is off. Using Samsung own charge, I got about %24/hour.
PS: Look like my desk usb 2 port supplies .5A only (%6x4=%24).

GinTMonster said:
Yes, this is correct, my standard Galaxy S4 is 1A, however a computer may put out even less than this.
Click to expand...
Click to collapse
I think you're right. I'm using a 2.1A CostCo Charger and it seems to be charging the 2014 P-605 perfectly.
howard30 said:
No. Standard USB 2 port supplies 0.5A. USB 3 port will supply like 1.5A or less. As for USB 2, you may install (if motherboard supports it) ASUS Ai Charger so that it supplies 1A.
I have gigabyte mb and it has its own driver to over supply usb 2 current. With that I have about %6/hour charging rate if screen is off. Using Samsung own charge, I got about %24/hour.
PS: Look like my desk usb 2 port supplies .5A only (%6x4=%24).
Click to expand...
Click to collapse
Not to be rude, but what you wrote here makes no sense to me .

i got the charging issue also, with original charger 2A, original USB cable
checking with galaxy current, value at 900mA

my tablet charges perfectly with original charger and cable but using every standard usb charger (2A and 700mA) it charges but the "connection" is unstable: it's like usb is connecting and disconnecting repeatedly.
I've checked every connection, using the same charger and cable with another phone the connection is stable.
Anyone with the same issue?
(rom xKat on P605)

[Q] New Note 8 not charging via PC USB

Hi Guys,
I'm just wondering if my unit is defective or it's really the case for Galaxy Note 8's. My tablet charges just fine when using the wall charger, but when I connect it to my PC, it won't charge at all. I've tried different cables that I use for my phone and other gadgets, but none of them will work.
Is there a way for me to make it charge via USB?

Grawrz said:
Hi Guys,
I'm just wondering if my unit is defective or it's really the case for Galaxy Note 8's. My tablet charges just fine when using the wall charger, but when I connect it to my PC, it won't charge at all. I've tried different cables that I use for my phone and other gadgets, but none of them will work.
Is there a way for me to make it charge via USB?
Click to expand...
Click to collapse
Mine also says not charging when its plugged to the PC, its because the USB ports supposedly don't give enought current to charge the tablet, but i once left it connected overnight while transfering my MP3 collection and in the morning the tablet was 100% charged, so i think even if it says is not charging, it charges but ultra slow, even slower than a cell phone.

USB ports on a PC does not put out enough voltage to charge the tab. Like said above, if it does, it will take forever. Look on the back of your wall charger. It should say 10v. USB ports typically put out only 5v. If you look on the back of a phone charger, it should be 5v.
Sent from my GT-N5110 using Tapatalk

cavsoldier19d said:
USB ports on a PC does not put out enough voltage to charge the tab. Like said above, if it does, it will take forever. Look on the back of your wall charger. It should say 10v. USB ports typically put out only 5v. If you look on the back of a phone charger, it should be 5v.
Sent from my GT-N5110 using Tapatalk
Click to expand...
Click to collapse
It's not the volts, it's the amps. Your charger provides 2A. A typical USB port provides 0.5A. But in any case, you'll not be able to charge this device from a computer USB port. It's not a fault in the device.

That explains it then. Thanks guys :laugh:

Hmmm... I alway charge my note 8.0 thru my pc usb.
It charges on my pc and lap top.
If you want to be sure just let is sit for an hour and see if the % went up.
Doesnt charge fast but charges in an evening from 60 to 100%

Perhaps it doesn't charge while the screen is on, because the power drain exceeds the charge rate? There would be no way to see it change to "charging" because the screen must be off for that to happen... Just some speculation
Sent from my SPH-L710 using Tapatalk

I have a HP Envy M6 laptop that I use to charge my Note 8. It only charges on the port closest to the battery. The only USB 2.0 port out of 3 other USB 3.0 ports which is odd because they say USB 3.0 ports give out more power.
I have tried charging it with another HP laptop that has the same USB setup but it doesnt charge in any one of the ports, 2.0 or 3.0.
I guess it just depends on the PC you're charging it with.

Can charge.
hi,
We can charge note 8, if the note is switched off and connected to a PCvia USB

Normally Note 8.0 can not charge with pc usb port or car usb port because AC current of them too low only 0.5A (minimum AC current of charging require should be 1A)
Samsung Tablet stock charger is 2.1A (Note 8.0 device allows 1.8A)

OEM cord that will charge in car

Anyone know of a good source to get an OEM cord that will properly charge in the car? Tried monoprice and a couple others and they appear to be charging but don't actually charge.
sent from my hammerhead

Anyone?
sent from my hammerhead

http://forum.xda-developers.com/showthread.php?p=51825009
Sent from my Nexus 5 using Tapatalk

If you are trying to charge from a USB port built in to your car, you are only going to get a 500mA current which isn't enough to charge your phone if you're using navigation or anything.
For a charger that will work well in the car, look at the Anker PowerIQ charger.
http://www.amazon.com/Anker®-Dual-P...&qid=1397483180&sr=8-6&keywords=anker+poweriq
Both ports will charge Android devices or iPhones at the full rate.

raptir said:
If you are trying to charge from a USB port built in to your car, you are only going to get a 500mA current which isn't enough to charge your phone if you're using navigation or anything.
For a charger that will work well in the car, look at the Anker PowerIQ charger.
http://www.amazon.com/Anker®-Dual-P...&qid=1397483180&sr=8-6&keywords=anker+poweriq
Both ports will charge Android devices or iPhones at the full rate.
Click to expand...
Click to collapse
if u turn off ur screen & only listen to the directions, it will charge, but if u want to see where ur going, the battery will remain flat. power in = power out.

raptir said:
If you are trying to charge from a USB port built in to your car, you are only going to get a 500mA current which isn't enough to charge your phone if you're using navigation or anything.
For a charger that will work well in the car, look at the Anker PowerIQ charger.
http://www.amazon.com/Anker®-Dual-P...&qid=1397483180&sr=8-6&keywords=anker+poweriq
Both ports will charge Android devices or iPhones at the full rate.
Click to expand...
Click to collapse
Whaaaaaat?? Cars can put out more than 500ma
Sent from my Nexus 5 using Tapatalk

Ben36 said:
Whaaaaaat?? Cars can put out more than 500ma
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
If the port is a charging-only port, sure. But most are charging + data ports.

I have a car charger but for some reason the cables I've gotten don't charge properly, even though it looks like it is.
sent from my hammerhead

Ben36 said:
Whaaaaaat?? Cars can put out more than 500ma
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
It varies dramatically from car to car, even from year to year. Generally, if it doesn't look like it's charging much, if at all, it's because it's not putting out enough amps, period.

ldubs said:
I have a car charger but for some reason the cables I've gotten don't charge properly, even though it looks like it is.
sent from my hammerhead
Click to expand...
Click to collapse
How have you determined that it is the cable and not the charger? It is much more likely that a charger would be defective than a cable.

raptir said:
How have you determined that it is the cable and not the charger? It is much more likely that a charger would be defective than a cable.
Click to expand...
Click to collapse
because I had an OEM cable working fine in the charger, but the tiny clips at the end got bent down and now it doesn't stay seated properly in the charging port, so I tried a couple of places (Amazon, Monoprice) to get a replacement OEM charging cable - I have a dual port charger and have tried both ports with the replacement cables. They appear to charge (battery icon spins, using Mahdi Rom) my phone but when I get home the battery level is lower than when I plugged it into the car. Hence my quest to find an OEM charging cable, with the proper tiny clips so it stays properly seated, that I can use in the car. Monoprice cable fits nicely in the charging port, but doesn't seem to charge the phone. Not sure if there are data-only cables made but these were advertised as charging/sync cables...

Well, Monoprice has a lifetime guarantee so if you received defective cables they will replace them. I use both the Monoprice Premium cable and the standard cable and have no issue with any charger.
http://www.monoprice.com/Product?c_id=103&cp_id=10303&cs_id=1030307&p_id=9762&seq=1&format=2
http://www.monoprice.com/Product?c_id=103&cp_id=10303&cs_id=1030307&p_id=4868&seq=1&format=2
The only issue I run into is that one of my chargers is an iPhone charger and thus shows as "Charging (USB)" when you go to the Battery menu. That means they will only charge at 500mA which is not enough power to keep the phone running as a GPS. This Anker PowerIQ charger plus either of the Monoprice cables charges my phone without any issue (displays "Charging (AC)") while using the phone as a GPS.
http://www.amazon.com/Anker®-Dual-P...&qid=1397483180&sr=8-6&keywords=anker+poweriq
Edit: Also, when you say "OEM cable" do you mean the one that came with your Nexus 5 or the cable that came with your charger (since both are provided by the manufacturer of the equipment)? If it's the one that came with your Nexus 5 it is probably just that you received a defective cable since the Nexus 5 cable is a standard sync + charge cable. If it came with your charger it may be that your charger uses the iPhone spec and needs a charge only cable to properly charge an Android phone.

raptir said:
Well, Monoprice has a lifetime guarantee so if you received defective cables they will replace them. I use both the Monoprice Premium cable and the standard cable and have no issue with any charger.
http://www.monoprice.com/Product?c_id=103&cp_id=10303&cs_id=1030307&p_id=9762&seq=1&format=2
http://www.monoprice.com/Product?c_id=103&cp_id=10303&cs_id=1030307&p_id=4868&seq=1&format=2
The only issue I run into is that one of my chargers is an iPhone charger and thus shows as "Charging (USB)" when you go to the Battery menu. That means they will only charge at 500mA which is not enough power to keep the phone running as a GPS. This Anker PowerIQ charger plus either of the Monoprice cables charges my phone without any issue (displays "Charging (AC)") while using the phone as a GPS.
http://www.amazon.com/Anker®-Dual-P...&qid=1397483180&sr=8-6&keywords=anker+poweriq
Edit: Also, when you say "OEM cable" do you mean the one that came with your Nexus 5 or the cable that came with your charger (since both are provided by the manufacturer of the equipment)? If it's the one that came with your Nexus 5 it is probably just that you received a defective cable since the Nexus 5 cable is a standard sync + charge cable. If it came with your charger it may be that your charger uses the iPhone spec and needs a charge only cable to properly charge an Android phone.
Click to expand...
Click to collapse
I meant the cable that came with my Nexus (or maybe it came with my wireless charger). Car charger didn't come with a cable, I got this one:
http://www.amazon.com/gp/product/B006SU0SX0/ref=wms_ohs_product?ie=UTF8&psc=1
Like I said, it was working fine with the original cable until the tiny pins got bent and it no longer stays seated in the charging port properly. I have the 3 foot version of that monoprice cable.

ldubs said:
I meant the cable that came with my Nexus (or maybe it came with my wireless charger). Car charger didn't come with a cable, I got this one:
http://www.amazon.com/gp/product/B006SU0SX0/ref=wms_ohs_product?ie=UTF8&psc=1
Like I said, it was working fine with the original cable until the tiny pins got bent and it no longer stays seated in the charging port properly. I have the 3 foot version of that monoprice cable.
Click to expand...
Click to collapse
Then the only thing I can think of is that you received a defective cable. I use this charger with the monoprice cable and have no issue:
http://www.amazon.com/Anker®-Dual-P...&qid=1397483180&sr=8-6&keywords=anker+poweriq

raptir said:
Then the only thing I can think of is that you received a defective cable. I use this charger with the monoprice cable and have no issue:
http://www.amazon.com/Anker®-Dual-P...&qid=1397483180&sr=8-6&keywords=anker+poweriq
Click to expand...
Click to collapse
I chatted with monoprice and after I sent them a link to the car charger I'm using, they found it has both a 2.4 amp and a 1 amp slot. Said to try the 2.4 amp slot and see if that helps. I'll report back...

ldubs said:
I chatted with monoprice and after I sent them a link to the car charger I'm using, they found it has both a 2.4 amp and a 1 amp slot. Said to try the 2.4 amp slot and see if that helps. I'll report back...
Click to expand...
Click to collapse
The 2.4A slot is designed using the Apple spec and won't charge the Nexus 5 properly. Once you plug it in check under the Battery menu. If you see "Charging (USB)" then it is capping at 500mA.

raptir said:
The 2.4A slot is designed using the Apple spec and won't charge the Nexus 5 properly. Once you plug it in check under the Battery menu. If you see "Charging (USB)" then it is capping at 500mA.
Click to expand...
Click to collapse
hmm that could be a problem. will check later and see what's what.

raptir said:
The 2.4A slot is designed using the Apple spec and won't charge the Nexus 5 properly. Once you plug it in check under the Battery menu. If you see "Charging (USB)" then it is capping at 500mA.
Click to expand...
Click to collapse
Actually it does charge the phone quite nicely with the monoprice cable. Maybe problem solved. It shows charging ac. I'll let it run for a few days and see how it is.
sent from my hammerhead

This is the best car charger period.
http://www.amazon.com/Motorola-Vehicle-Adapter-micro-USB-Charger/dp/B000S5Q9CA

Car charging issues (standard S20 5g)

So i've had this phone for a few days and took a road trip and camped this weekend. To say the least, I had a good feel of battery usage of this phone for my typical tasks.
During my road trip, my phone started with about 92% when i threw it on the charger and started driving. I noticed it was charging up to 96% and it started to discharge slowly after about an 45 minutes of driving The phone indicated it was being charged. When I purchased this phone I also purchased a 6a car charger (dual port, 3a each), and also some USB-C to USB-A cables rated at 18w. If I disconnected the power for a little bit, and reconnected, it would charge maybe 3-8% before stopping again and I would repeat the cycle to ensure I had enough battery to allow navigation to take me to my destination. Luckily, I made it to my campsite with 82% battery to spare.
Now the strange thing- when I left this morning to come back home, I had 100% on my phone as I charged it with a battery bank fine. I left the phone plugged in to my car charger as I left, and it stayed at 100%. I even let the phone discharge to 94%, and plugged it in and it was able to charge to 100% with the navigation on as well as pandora.
Am I doing something wrong? Am I supposed to be using a USB-C type charger? Maybe I need a better rated cable?
Would love some help. I'm coming from an S7 edge so a lot has changed. thanks!

liberalswine said:
When I purchased this phone I also purchased a 6a car charger (dual port, 3a each),
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I'm going to guess the charger just isn't that good, which one was it?

peachpuff said:
I'm going to guess the charger just isn't that good, which one was it?
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It's a qualcomm based charger. https://www.amazon.com/AILUN-Charger-Qualcomm-Adapter-Compatible/dp/B01N8PPY1H

Sometimes while driving these things can work loose in the lighter socket, a slight touch fumbling around near it (my dash cam does this), or some bumps in the road.
I suspect on your outbound trip the charger might have been getting intermittent power from being not quite pushed "home", but on the return trip you could have pushed it in harder and it stayed put.

yrp888 said:
Sometimes while driving these things can work loose in the lighter socket, a slight touch fumbling around near it (my dash cam does this), or some bumps in the road.
I suspect on your outbound trip the charger might have been getting intermittent power from being not quite pushed "home", but on the return trip you could have pushed it in harder and it stayed put.
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this wasn't the issue as I tried unplugging it and tried various 12v sockets in my car. However I think I did figure out my issue. The new charger i'm using does not use the "PD" protocol that the newest samsung phones use. Also, although the car charger i have is a qualcomm 3.0 protocol, and 36w- it's actually at 18w per usb A socket. The s20 wall charger is rated at 25w- so I'm now looking for a usb car charger that has a dedicated usb c socket with at least 25w of power and supports PD and pps

I'm using this one, no issues https://www.amazon.co.uk/gp/product/B07VP3HLGW/

jonboi said:
I'm using this one, no issues https://www.amazon.co.uk/gp/product/B07VP3HLGW/
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is "super fast charging" enabled with that charger? I just ordered: https://www.amazon.com/gp/product/B077ZRBPNB/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
I read somewhere that the newer samsung devices require PPM protocol in order for super fast charging rates to be active (as well as PD)

liberalswine said:
this wasn't the issue as I tried unplugging it and tried various 12v sockets in my car. However I think I did figure out my issue. The new charger i'm using does not use the "PD" protocol that the newest samsung phones use. Also, although the car charger i have is a qualcomm 3.0 protocol, and 36w- it's actually at 18w per usb A socket. The s20 wall charger is rated at 25w- so I'm now looking for a usb car charger that has a dedicated usb c socket with at least 25w of power and supports PD and pps
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I've reconsidered using fast chargers after the purchase of the S20, we've started using old 7.5W and 10W AC power adaptors. The 7.5W charger brings the phone up from about 30% to 80% in about 75min and I am fine with that. I have also used the 5W S3 charger but I think I'm happy with using the 7.5W charger.
If I need a fast boost I can always pull out the 25W charger.
I did buy a Belkin 18W PD car charger with the phone thinking "yeah, I need this" but now I will only use it for emergency charging. Tomorrow I'll pull out an old 10W car charger and plug the phone into the 10W socket while I drive around, see what happens.

Well I got into the car at 10:55 with the battery around 26%, plugged it into an old car charger I bought for our S4s (Pleomax, apparently OEM for Samsung) which has 2A & 1A outlets. It's not obvious on the charger which outlet is which but turns out I used the 1A outlet (AccuBattery showed the charging current hovering around 1000 mA).
Anyway, after 1hr of driving to my destination with a 5min break to fill up, the battery reached 66% so the 1A car charger raised the battery by 40% in about 60min, which I think is quite acceptable.
Car connected by BT for phone/SMS, received 1 call only. GPS/NFC etc are usually kept off.