Rewiring a battery charger
Posted: Fri Sep 25, 2020 4:11 pm
Found a shop style battery charger that got crushed, The transformer and rectifier are still salvageable.
It is a 6v-12v charger Old school brute force type. i couldn't read any of the info on the charger..it's been painted over and over sprayed with paint
but i'm guessing it had a good high amp boost for starting.
the voltages i get from the 4 settings are (AC) 7v, 9v, 14v 17v
it has a big a half bridge rectifier 12-0-12 center tapped.
Is it possible to use a full bridge rectifier and not using the center tap to achieve a 24v charger ? Or am i missing something ?
I'm guessing it can be done, I just don't know if the voltages will be right.
I'm going with a full bridge, I'm only limited to 25-45 amps. Wouldn't be using it for any start function,,, just charging SLA batteries.
I just thought too, i could use the same half bridge, just parallel them up..then I'd have the full use out of the rectifier for the current.
It is a 6v-12v charger Old school brute force type. i couldn't read any of the info on the charger..it's been painted over and over sprayed with paint
but i'm guessing it had a good high amp boost for starting.
the voltages i get from the 4 settings are (AC) 7v, 9v, 14v 17v
it has a big a half bridge rectifier 12-0-12 center tapped.
Is it possible to use a full bridge rectifier and not using the center tap to achieve a 24v charger ? Or am i missing something ?
I'm guessing it can be done, I just don't know if the voltages will be right.
I'm going with a full bridge, I'm only limited to 25-45 amps. Wouldn't be using it for any start function,,, just charging SLA batteries.
I just thought too, i could use the same half bridge, just parallel them up..then I'd have the full use out of the rectifier for the current.