I am using a laptop power supply to power it. 12V at 10A is correct. I did build this with weight and portability in mind. I'm going to the world this year in Prague and weight is always a challenge when traveling to race, especially overseas. The one pictured above was sent to California for testing. It has broken in motors for up to an hour without any issues so far. It has also broken in numerous pairs of tires from soft to hard retro tires. No issues have arose so far to my knowledge. I have parts to build some more but i am out of the country for work at the moment so i will be building another one to test for myself.
Excellent! As an intro, I am an Advanced class Amateur radio operator who has built about 30 power supplies and chargers some with switched battery backup for various uses. I have worked with a number of chips and voltage/current needs. I am best know in our group for building emergency power "grab-n-go" kits for 100W radios over the last 30 years. With recently getting into slot cars, I have been playing with builds for this hobby's needs and found that several of the commonly recommended circuits would overheat and / or shut down well below rated specs which has been disconcerting. The low desired voltage for breaking in motors and tire truing with 2-7 amp draw seems to be a challenge for some circuits , especially if the supply side has 12 volts.
Good Luck,
Nate G
http://www.aliexpress.com/wholesale?catId=0&initiative_id=AS_20150618143944&SearchText=CPS-1610
Freeshipping NEW precision Compact Digital Adjustable DC Power Supply OVP/OCP/OTP low power 16V10A 110V-230V 0.01V/0.01A EU
