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  1. Thread Author  Thread Author    #1  
    fonewiz's Avatar

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    Default Charge via USB port?

    Is there any way to charge my A100 using the USB port.. I have lots of car adapters that I could use to charge this if it were possible. Seems to only charge with the included power adapter which is less than cool, really.
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    volwrath's Avatar

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    Default Re: Charge via USB port?

    Yes that would be great, especially with its less than stellar battery life.
  3. #3  
    quadcam#CB's Avatar

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    Default Re: Charge via USB port?

    If the A100 is the same setup as the A500, which it sounds like it is, it doesn't charge from the usb, which is a shame but it will backcharge your phone via usb which is a +
    This message was definitely sent from an android device....unless it came from a laptop.....
  4. #4  

    Default Re: Charge via USB port?

    The A500 and A100 use a 5 volt charger, not the 3 volt that comes out of a usb port... purchase a small power inverter and take it with you...... really seems like somewhat of a simple question for some one that has a high tech tablet.... hummmm......
    wildog426 likes this.
  5. Thread Author  Thread Author    #5  
    fonewiz's Avatar

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    Cool Re: Charge via USB port?

    Quote Originally Posted by Whoknowes View Post
    The A500 and A100 use a 5 volt charger, not the 3 volt that comes out of a usb port... purchase a small power inverter and take it with you...... really seems like somewhat of a simple question for some one that has a high tech tablet.... hummmm......
    I know what a power inverter is and I have one permanently installed under the seat in my vehicle. But.. It's much easier to just use the same cable I already have plugged into the power port in the dash.

    I already have a micro usb cable laying there that I use for my phone and my wife's phone in both vehicles.

    Your solution would require me to buy two more AC adapters (one for each vehicle) and buy another inverter for my other vehicle. Actually I have another inverter but why would I want to do this if, there is some way to charge it through the USB port?

    It's all about convenience, if it is possible to charge via USB in some way, then that would be my preference. If get by however I can with the A/C adapter, inverters or whatever. There are a few car adapters on Ebay but they look cheap and I don't trust them.

    So, I don't understand the sarcasm about my question, really. But thanks for the response anyhow, I think..
  6. #6  

    Default Re: Charge via USB port?

    Quote Originally Posted by fonewiz View Post
    Is there any way to charge my A100 using the USB port.. I have lots of car adapters that I could use to charge this if it were possible. Seems to only charge with the included power adapter which is less than cool, really.
    do not i repeat DO NOT attempt to charge your a100 through the USB port! it's a good way to turn your 7" tablet into a 7" brick! one of the ways acer kept the cost down was instead of having a USB charging port it's just made for computer to tablet connections and if you try to use it to charge you run a huge chance of shorting out and frying your entire system
  7. #7  

    Default Re: Charge via USB port?

    Your other solution that does work is to get the car adapter for the A500. I have it and it charges it up just fine.
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    ongre10's Avatar

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    Default Re: Charge via USB port?

    An important consideration in the design is the amount of current the usb connectors can handle. I figure the designers find that it is safer to design a separate charging and power connector because as the devices get larger they draw more current to operate and charge the battery. I think that is the reason they do that. Is there no 12 volt adapter for these devices? I don't own one yet, just leaning towards the acer 7 inch tablet.
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    McPlot's Avatar

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    Default Re: Charge via USB port?

    It is a 12v power adapter. USB is like 3v. Yeh I know., the iPad can charge via usb. I But they don't tell you is in test it took 3 hours to get 4% charge for it. Not very useful if you ask me.
    If at first you don't succeed, then sky driving is not for you.
  10. #10  

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    So, I guess I have to put my music and movies on sd card using the pc then insert the card into the tablet.

    Sent from my sorry *** EVO 3D
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    dmtchico's Avatar

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    Default Re: Charge via USB port?

    Quote Originally Posted by Whoknowes View Post
    The A500 and A100 use a 5 volt charger, not the 3 volt that comes out of a usb port... purchase a small power inverter and take it with you...... really seems like somewhat of a simple question for some one that has a high tech tablet.... hummmm......


    Simply read the small print right on the end near the power button.
    The A100 takes a 12 volt DC input.
    Commenters: Don't assume, understand and verify stuff before you comment.
    Readers: Google and verify before you take comments at face value,
    there are too many kids on these forums that just want to sound like they know something.

    By using a multimeter, i verified that a voltage greater than 13 volts will cause the A100 to deactivate it's internal charging circuits as protection. Thus, any car adapter you get must regulate and limit it's output voltage.
    Also, polarity is important with a DC circuit.
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    McPlot's Avatar

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    Cool Re: Charge via USB port?

    Quote Originally Posted by CTREV21 View Post
    So, I guess I have to put my music and movies on sd card using the pc then insert the card into the tablet.

    Sent from my sorry *** EVO 3D
    On the Acer A100, no. YOU can transfer directly from the PC onto the SD card in the tablet. If you need more power doing this time, just plug the Acer into the wall as normal.
    If at first you don't succeed, then sky driving is not for you.
  13. #13  

    Default Re: Charge via USB port?

    Also beware of products that claim to charge via the power connector using a USB adapter. I purchased one from Amazon, and even though the connector fits, it does not draw enough power to make either the 10" A500 or the 7" A100 recognize that it is charging. Luckily Amazon accepted the return.

    The tablets are great in all other ways though! Love the full-size USB port on the A500!

    Plug in a USB mouse and you get an arrow on the screen! Great for RDP or LogMeIn!

    "The TechGal"
  14. #14  

    Default Re: Charge via USB port?

    I was looking up this question because I want to be able to use a solar charger with my tablet. Almost all solar chargers accept USB connections only. I would like to know what type of power connector there is for the Acer A200 so I can possibly find an adapter to use with a solar charger.

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