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Battery connection for Type II modem

  1. #1
    Junior Member
    Join Date
    Nov 2008
    Posts
    4

    Default Battery connection for Type II modem

    Hi,
    I just ordered for a new landline + broadband connection. In bangalore there the Ugadi Mela (13th and 14th March) wherein you get free installation, 50% off on modem purchase and a prepaid SIM card free.
    So if anyone in bangalore is planning to get a new connection, theres no better time.

    I have ordered for Type-II modem. I know there is no battery slot in that modem, is there some external rechargable battery available which can b used to power modem? (i m planning to use laptop and in my area there is frequent power cuts mostly for 1-1.5hrs.) Also is ther a way i can power this modem using USB?

    any idea(s) is highly appreciated
    Thanks,
    An

  2. #2
    Silver Member
    Join Date
    Feb 2009
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    397

    Default

    Quote Originally Posted by an_sush View Post
    Hi,
    I just ordered for a new landline + broadband connection. In bangalore there the Ugadi Mela (13th and 14th March) wherein you get free installation, 50% off on modem purchase and a prepaid SIM card free.
    So if anyone in bangalore is planning to get a new connection, theres no better time.

    I have ordered for Type-II modem. I know there is no battery slot in that modem, is there some external rechargable battery available which can b used to power modem? (i m planning to use laptop and in my area there is frequent power cuts mostly for 1-1.5hrs.) Also is ther a way i can power this modem using USB?

    any idea(s) is highly appreciated
    Thanks,
    An
    you have to know which make and model Modem they are likely to give you.
    suppose, it is UTstarcom WA3002-G1, it is possible to connect 12V Dc and it consumes 1.3Amps load. even this is same for any ype2 modem with 12V DC input.IN CASE OF DC INPUT, YOU NEED TO TAKE CARE OF POLARITY.
    Even if the input is 12V AC, perhaps you can use 12V DC -though there would be a driop of 1.4 Vdue to bridge rectifier, but it would work.


    Your USB powering is not thus possible.

  3. #3
    LEARNER
    Join Date
    Aug 2007
    Posts
    15,263

    Default Laptop on Internal battery use

    The modem you get should have only USB port.
    and depend on the computer's Power supply.
    very old ZYxel USB model was available. ( BSNL supplied modem/s will not be suitable )

    Connect it to laptop USB.
    Download the drivers without
    connecting the cable from modem to laptop.
    Restart laptop and let windows detect the new Hardware.
    Load the USB drivers. for the modem.

    When laptop switches to Battery ( during Power
    Failure, you connection is not lost.
    How long the backup PS will last, varies for
    different laptops.

    Or If you are using an UPS supply, for the BSNL modem,
    (to avoid failure due to large transit time say above 24 ms)
    power can be connected Directly to the 12V battery
    (*conditions apply!)

    Above post by @mvs_sharma
    has analyzed all possibilities.

  4. #4
    Platinum Member panchabhut's Avatar
    Join Date
    Jan 2009
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    3,065

    Default

    The simple solution is to invest in a good and long back up UPS.
    Connect both Laptop & Modem to the UPS.

  5. #5
    Silver Member
    Join Date
    Dec 2008
    Posts
    375

    Default

    Quote Originally Posted by an_sush View Post
    Hi,
    I just ordered for a new landline + broadband connection. In bangalore there the Ugadi Mela (13th and 14th March) wherein you get free installation, 50% off on modem purchase and a prepaid SIM card free.
    So if anyone in bangalore is planning to get a new connection, theres no better time.

    I have ordered for Type-II modem. I know there is no battery slot in that modem, is there some external rechargable battery available which can b used to power modem? (i m planning to use laptop and in my area there is frequent power cuts mostly for 1-1.5hrs.) Also is ther a way i can power this modem using USB?

    any idea(s) is highly appreciated
    Thanks,
    An
    Be happy, as a user in Mumbai suburb we have 4 hrs power cut and it may go to 8-9 hours during summer. As spcified by panchabhut invest in a good UPS with enough battery back up (if desired for continuous use).

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