Thats pretty cheap for a 20 amp power supply - Radio shack also sells them - i dont remember how much - around 80-100$ - 25 amp - i have one. - i have charged 2 sets of 6 cells for racing and a 5S(3+2) lipo at the same time with no probs ( last night LOL )
If you only need 12v at high current, why not use a computer power supply? The 12v rail on some of the newer ones can deliver 20-30A. This one delivers 36A@ 12v and is about $100. This one only delivers 25A, but is only $45.
Or, use a small car battery, and then a much cheaper 3-5A PS (a RadioSHack transformer and a full wave rectifier) that can charge that battery between and during uses.
Thats pretty cheap for a 20 amp power supply - Radio shack also sells them - i dont remember how much - around 80-100$ - 25 amp - i have one. - i have charged 2 sets of 6 cells for racing and a 5S(3+2) lipo at the same time with no probs ( last night LOL )
Are you saying that you had 3 battery chargers hooked up to this one power supply at the same time?
Thanks.