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Old 06-29-2010, 06:48 PM   #3512 (permalink)
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Originally Posted by LUCKY13 View Post
Is it possible to modify them to handle higher amperage? Up to 120a?
How many volts?

Horrible circuit diagram attached. Red = battery on, blue = battery off. Tell drivers to frequently switch off whichever battery is hottest. Keep in mind switch failure mode = welding shut (on). Larger switch contact area (bigger chunk of metal) = lower energy density = less likely to weld. Include an emergency disconnect switch. Copper is good.

I recommend making your own double-throw knife (Frankenstein) switches.
(Photo from Basic Concepts Of Electricity )
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