I used 60 amp switches although I'm switching much less than that, here is a link:
Switch positions are "down is parallel, center no connection, up is serial". I normally do not change the voltage setting hot, instead I shut off the motor, set voltage, then turn the motor back on. The fwd-off-rev switch is hot, but voltage change switching is not.
Another advantage of the battery switching is that you can use 24v or 12v solar panels to charge the batteries without having to run them in series to come up with 48v.
On Sat, Jan 25, 2014 at 5:49 PM, <danlrandolph@gmail.com> wrote:
What DPDT switches do you use? I have only found ones that have a much smaller amperage limit than most of what is used on boats.
Also, have you had any issues with arcing? From looking at the endlessshpere chat on using DPDT switches on electric bikes (much smaller amperages), it sounds like the switches sometimes fuse from the arcing. Also, since I am interested in using lithium batteries, arcing would seem to be a major concern.
Intrigued though, thanks for the idea!
Dan
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