HTC Car charger 1amp vs generic 2.1amp car charger

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When ever I drive, I have my phone hooked up to my Escort Red Line radar detector and my car's stereo via bluetooth (both). In order for me to use the radar detector effective, I need to have GPS and Blueooth enabled. This is a HUGE SUPER OMG battery drainer for my amaze. 20 minutes drive kills about 35% of the phone's power. My radar detector offers a slot to charge my phone BUT it still drains, not enough juice flowing in. Someone said it is because it's probably a .5amp.

So I am running a extension from the 12v lighter that's in the trunk to the front of my car. Amazon has a generic 2.1amp for 3 bucks.

http://www.amazon.com/Premium-Heavy-...ar+charger+amp

But on ebay, I found the original HTC car charger for 15 bucks which is a 1amp.

http://www.ebay.com/itm/HTC-Amaze-4G...item27c867022a

What do you guys recommend? My logic says go for the 2.1amp, the phone will draw as much as it needs from it.

The 1amp.

Anything higher you'll damage the phone or the battery.

A wall plug power supply or a usb supply is 5.0v/1amp.

The 2.1 amp is probably 1 amp per port. Although it does not seem to specify.

Originally Posted by F9zSlavik

What do you guys recommend? My logic says go for the 2.1amp, the phone will draw as much as it needs from it.

Right!

---------- Post added at 09:23 AM ---------- Previous post was at 08:41 AM ----------

Originally Posted by soundping

The 1amp.

Anything higher you'll damage the phone or the battery.

A wall plug power supply or a usb supply is 5.0v/1amp.

That means a higher capacity battery (more current NOT MORE VOLTAGE) will damage the phone?!!!!
Totally wrong!

A higher current will not damage the phone. A higher voltage will do it!
Please do not mix the current with voltage!


Voltage is same 5 Volts (±5%) for these “USB like” applications (1A or 2.1A power supply our case )They use USB socket/connector but usually only pin 1 and 4 (+ and-)
Regular computer USB port can supply max 0.5-0.9 A depending on version.
For battery charging devices the current can go to 5A.

Higher voltage will trip a warning window telling you to disconnect and use official HTC equipment.

The phone monitors input voltage to protect the equipment.

Originally Posted by nyc_tdi

That means a higher capacity battery (more current NOT MORE VOLTAGE) will damage the phone?!!!!
Totally wrong!

A higher current will not damage the phone. A higher voltage will do it!
Please do not mix the current with voltage!


Voltage is same 5 Volts (±5%) for these “USB like” applications (1A or 2.1A power supply our case )They use USB socket/connector but usually only pin 1 and 4 (+ and-)
Regular computer USB port can supply max 0.5-0.9 A depending on version.
For battery charging devices the current can go to 5A.

and to add to that... unless you take the charger apart and short pins 2 and 3, it will only ever draw 500mA, as it assumes that it is hooked up to a regular powered USB port... I have bought multiple car charger usb adapters, and I have taken all of them apart and soldered the 2nd and 3rd pins together... otherwise charge time = forever, and sometimes it won't even charge if you have wifi or data/gps/bluetooth all going at once...

I recently got an Amaze and am generally happy with it. The biggest problem I have right now is finding the right car charger for it because the car charger I previously used (a 1A monoprice car charger) doesn't give it enough charge. I have been reading through the forums and some has been saying that if the charger is not working properly, it will recognize it as charging via USB rather than AC. In my case, the phone seems to be reading it as charging through AC, but there still doesn't seem to be enough current going through it. The phone will only charge if NOTHING is going on (i.e. screen's off, no GPS, etc.). I've been using CoPilot GPS and it draws the battery like crazy. Anyone has any idea as to which car charger would work properly with the Amaze such that I'll be able to charge (or at least maintain the charge) while using it as a GPS? Do I need to go up to a 2.1A charger?

I would look for a 4-5 star rated 2.1a car charger on Amazon.
Just read through the comments and feedback and you'll find one that's right for you.
I prefer the USB charger base itself and then using the OEM cable that came with the Amaze.
It seems to charge faster with that cable, at least to me anyway.
Remember though if it's rated 2.1a but has two USB slots that 2.1a will be cut in half if used to charge two different devices.

Hope this helps.

I couldve sworn we talked about this months ago. Let me see if I can find the thread.

Originally Posted by nguyendqh

I would look for a 4-5 star rated 2.1a car charger on Amazon.
Just read through the comments and feedback and you'll find one that's right for you.
I prefer the USB charger base itself and then using the OEM cable that came with the Amaze.
It seems to charge faster with that cable, at least to me anyway.
Remember though if it's rated 2.1a but has two USB slots that 2.1a will be cut in half if used to charge two different devices.

Hope this helps.

you won't get the full 2.1a unless you usee a charge only cable or modify the charger as I stated above...