I am creating a temporary setup for a lead acid charger, using a rewound Microwave transformer, a bridge rectifier, and a giant filter capacitor (30,000µF).
Wound turns until I got 14 volts filtered on the output of the capacitor.
I tried to charge the battery, but it seemed to get "stuck" at 11.8-12 volts, and not charge up to the 13.5 volt charge.
I know this might not be the best charger setup, but I fried my charger, and need a temporary set up. I AM watching the voltage constantly, and making sure it does not reach above 13.5.
The battery is a 17 amp hour 12 volt lead acid
And the reason I am using the Giant capacitor is I am using it for equipment in parallel with the battery and charger that is very sensitive to hum.