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Thread: External battery for A100

  1. #21
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    The two cells are in parallel.

    I hope some of you who have succeeded in building an external battery pack will post parts lists and photos! The most important thing is to have the right plug and socket.
    Jeff Schallenberg
    Mont Saint Hilaire, Québec

  2. #22
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    Sure, why not if anyone is interested.

    The lower part of the picture is the original Acer transformer with the cord cut in half about 6" from the transformer.
    A set of coaxial plugs female/male is soldered in the cord.
    The size of the connectors are M and that is the size of the output on the external blue lion battery on the top left.
    The input of the lion battery is also size M used with its transformer.

    Here is the Shack page with the coaxial size M female/male plugs
    Search Result
    Ramil, hguerr01 and Dmtchico like this.

  3. #23
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    I've mentioned the parts I used in the threads above, but here are the links.

    Radio Shack:
    Adaptaplug socket
    Type G Adaptaplug

    Battery holder - 2 AA cell
    Battery holder - 8 AA cell
    9 volt battery connector

    10 Sanyo Eneloops AA batteries - purchased at Amazon.

    No soldering required. I looked for 10 AA battery holders but couldn't find a quick source. The type G plug is a bit longer than the native plug, but it fits. Connect the red wire from one battery holder to the black wire of the other one to keep the batteries in series. The end result is a bit bulky. For now, I put the whole thing in a small bag. As mentioned, I think the best way to use is fully charge the internal battery and then plug in the external battery until it runs out, then unplug and run on internal. As others mentioned using the external to charge the internal uses more juice than using the external to run a fully charged unit.


    Edit: st23r avoided the whole issue of plug size by using the original plug from the AC adapter. I didn't feel like cutting the plug and I had read somewhere that a type G would work. It does.
    Last edited by tomz; 10-19-2011 at 01:30 PM.
    Ramil likes this.

  4. #24
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    Yeah, I was too lazy to hunt around for the smaller plugs, so i butchered the original cord, but it kept it simple

  5. #25
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    Wal-mart now has in stock 12v car charger kits and 120v home charger kits. You will find them in their electronics dept.. Brand name is Powerline and kit comes with 7 adapter plugs; "G" included. Kit is switchable from + or - and choose from 12v,9v,7.5v, 6v, 4.5v and 3v. You can cut end and use to connect to a battery pack. Price was $14.88 for home and $15.88 for car.

  6. #26
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    Energizer/XPal XP8000

    Quote Originally Posted by jschall View Post
    ...
    If you buy the XP8000, please let us know how it works for you!
    ...
    Well, I finally decided to get the XP8000. I paid 3x the money than the other solutions on this thread, but I didn't trust myself to build something. Plus, this thing is pretty high capacity and versatile. It can charge/power up to 3 devices of different voltage needs at a time. It works for my phone, laptop, bluetooth headset, and camera out of the box. You do have to order the right tip for the a100 (Item No. NB12). You get two "free" tips a year for life and they charge $3.50 for shipping.

    I did some testing similar to others here. Streaming video over WiFi with Skype running.
    Fully Charged, my a100 ran for 3.25 hours.
    Then, fully charged with the fully charged XP8000 attached, it ran for 10.25 hours.

    I was surprised that it even came that close to the right amount of added runtime for an 8000mAh battery (If my math is right, It should have added 8.5 hours). All in all, I'm pretty happy. It's nice and compact - except for the big charging brick, which I leave at home.

  7. #27
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    That is a nice battery pack.
    Versatile too with the different outputs, well worth the money.

  8. #28
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    Thank you, @Ramil!

    A bit pricey, but I think it should work for more than just my A100. So I just ordered an XP8000 from expansys.ca for $110.

    A question, though - does the NB12 tip come with the charger, or do you have to order it separately?
    Jeff Schallenberg
    Mont Saint Hilaire, Québec

  9. #29
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    You're welcome! Unfortunately, you'll have to order the tip separately, but you only have to pay for shipping.

  10. #30
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    Waiting for NB12 tip

    The XP8000 arrived by FedEX today, but now I have to wait for the proper tip to arrive by snail-mail...
    Jeff Schallenberg
    Mont Saint Hilaire, Québec


 
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