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    furioustyles's Avatar
    furioustyles Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Oct 29, 2013, 05:47 PM
    Charging a 75AH battery effectively.
    How many amps transformer do I need to charge a 75AH battery without overheating the transformer and rectifier.
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
    Uber Member
    		  
    #2

    Oct 29, 2013, 06:17 PM
    Depends on how fast you want to charge the battery. 6-10 amps is plenty. Why not just buy a small battery charger? $30 at Harbor Freight.
    HowHardCanItBe's Avatar
    HowHardCanItBe Posts: 46, Reputation: 2
    Junior Member
    		  
    #3

    Mar 28, 2014, 08:06 PM
    Even a 2A hobby type charger would be plenty. It's not just the charging, it's also the over-charging and cell balancing that you should be concerned about--especially with Lipo batteries.
    smoothy's Avatar
    smoothy Posts: 25,490, Reputation: 2853
    Uber Member
    		  
    #4

    Mar 28, 2014, 08:54 PM
    Buy a battery tender... it won't overcharge like a regular charger will, or even a float charger eventually will.
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