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Thread: Car Battery Charger

  1. #1
    Member
    Join Date
    Aug 2014
    Location
    Portsmouth,OH
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    Car Battery Charger

    I have a Nexstar SLT 102mm Celestron Refractor. It calls for a 12 volt Celestron power pact. I have a 12 volt car battery charger. It has a plug-in I can use. But it puts out 13.4 volts instead of the 12. Is it safe to run the motors on this?

  2. #2
    Big Jim Jim Chandler's Avatar
    Join Date
    Feb 2012
    Location
    Fort Davis, Texas
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    91
    Yes, it's safe. All specified voltages, both AC and DC, are actually voltage ranges. 13.4 is very close to the normal resting voltage for a fully charged 12v battery.

    Jim
    Jim

    Obsession 30" f/4.5

  3. #3
    Member
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    Aug 2014
    Location
    Portsmouth,OH
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    Sorry, Meant to say car jump starter. Thanks

  4. #4
    Member Preston Pendergraft's Avatar
    Join Date
    Feb 2012
    Location
    Trussville, AL
    Posts
    103
    Car jumper battery pack? Those things are great, pretty cheap and last a while. I got one for my now departed LX200GPS that I just sold for parts. I plan on keeping the battery in the car for safety. Scopes pull next to nothing in amps.
    Preston
    8in Orion Skyquest XT
    10X50 Orion Resolux
    My blog updated once a month

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