Battery charger out of a Microwave Oven Transformer

[Ed]

I made this battery charger using a Microwave Oven Transformer (MOT), originally was going to be a spot welder but decided to get a bigger transformer for that purpose and so rewired it again to make a big quick charge battery charger.

For a more detailed write up go to:
Built a battery charger out of a Microwave oven transformer | MIG Welding Forum

[tonyfoale]

MOTs have numerous uses. I used one to make a HF arc starter for a welder.