Battery charger Iron

[jgaupel]

Hi all,
Does anyone think that old school 12v 10amp plus "car" battery charger transformers are good for anything?

Jeremy

 

[PRR]

old school 12v 10amp plus "car" battery charger transformers are good for anything?

YES!! Charging car batteries!!
The new-school switching chargers won't try to charge a flat-dead battery, and most are too complicated for their price so die young.

 

[NareshBrd]

I think they would run 12V car amps rated at 6A or so without an issue.
Depends if it is a plain old transformer / rectifier, or something complex.
Simple ones, as above, can be used as bench supplies as well.

 

[jgaupel]

YES!! Charging car batteries!!
The new-school switching chargers won't try to charge a flat-dead battery, and most are too complicated for their price so die young.

I hear you but these are "for parts only" units. I do rather like my IGBT based chargers but you are correct that you sometimes have to at least surface charge a battery to use them.
Jeremy

 

[tiefbassuebertr]

Hi all,
Does anyone think that old school 12v 10amp plus "car" battery charger transformers are good for anything?

Jeremy

for low wattage single ended power amps (14VDC supply voltage) - but you need two good electrolytics and a choke.

P.S.: concerning a new school battery charger I want to find out the actually manufacturer - go to
https://www.diyaudio.com/community/...ind-out-the-manufacturer.397309/#post-7303188

 

[wg_ski]

The biggest problem with those transformers is the noise. You’re likely building low power class A amps and such, so the music isn’t going to be that loud. But the transformer will be - most of them can be heard across the room with the TV on. Fine for proof of concepts and getting started in electonics, though.