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    MarkJ58's Avatar
    MarkJ58 Posts: 1, Reputation: 1
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    #1

    Dec 21, 2007, 02:23 PM
    Can a 12V 240AMP battery power a 12VDC motor?
    I know: Watts = Volts X Amps, but I need to know if I can use a 12V battery, 240Amps to power a water pump that's 12VDC/65Watts.
    labman's Avatar
    labman Posts: 10,580, Reputation: 551
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    #2

    Dec 21, 2007, 02:29 PM
    The pump will draw 5-6 amps, so it should run a while on each charge. A deep cycle battery would last longer.
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
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    #3

    Dec 22, 2007, 06:08 AM
    Is your 240 - "Cold Cranking Amps (CCA)" or "Amp Hours"?

    Deep Cycle Batteries are preferred as labman states.
    The "Amp hour" rate of 240 loosely means 1 amp for 240 hours or 10 amps for 24 hours etc.

    CCA is a measure of the maximum current it can deliver taking into account the battery losses like the internal resistance of the battery. CCA's of deep cycle battieries are usually less than the CCA of a car battery. Car batteries will be damaged if deep cycled.
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