controller card

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  1. G

    I have 120 ac to 12 ac transformer and need help finding the right controller for sla battery charging

    The transformer works and I have a diode setup that gives me 12 volts dc. I need a controller card that lets me use the transformer to charge batteries. The transformer has 3 taps. I have applied power to the black lead with blue to neutral and I get 12 volts dc after the diodes. I assume this...
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