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DIY system to charge regular car batteries

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  • DIY system to charge regular car batteries

    I'm new to posting on forums, so please give advice if I am in the wrong place or posting incorrectly.

    I live in South Africa and am limited by what tech I can buy. I would like to create a system that can charge a regular car battery, type 628 (50Ah at 20 hour Cn - 12v). Its a regular silver calcium car battery that doesn't like deep discharge.

    I can get hold of an inexpensive Solaire Solar Panel 30w, with the following specs:
    Minimum Power 27w
    Voltage at max.power 17.2
    Current at max.power 1.74
    Open circuit voltage 21.6
    Short circuit current 1.98
    Maximum system voltage 1000
    http://www.alternagy.co.za/shop/sola...lar-panel-30w/

    Would this be sufficient to charge the car bettery, and suppose my day equates to say 5 perfect sun hours, how many days would it take to charge the battery?

    Also, after reading online, it seems much safer to have a charge controller. To keep this setup inexpensive and feasible, would a Steca Solsum Charge Controller 6.6F do the trick? Specs are as follows:
    PWM control
    Power range of up to 10 A at automatically recognised 12 V or 24 V
    Fits to a system sizes of maximum 240W.
    Module current 6 A
    Load current 6A
    End of charge voltage 13.9 V
    http://www.alternagy.co.za/wp-conten...uction_EN1.pdf

    Would this charge controller do the job? I also want the system to be able to charge the car battery while it is still connected in the car, though will disconnect it when using the vehicle.

    Would appreciate any help! Thanks everyone =)
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