I have a question about bus bars. I am new to the forum and I have enjoyed reading many of the threads.
BACKGROUND: I previously modified a kid-sized Razor Ground Force Drifter go kart using the following:
48V/1,000 watt Motor and Charge controller
14S9P battery bank (52V nominal) using brand new INR18650-25R 2500 mAh 18650 battery cells (each cell is rated at 20 amp maximum continuous discharge)
Batteries were spot welded using .15mm x .70mm pure nickel strips (rated at 7 amps max)
Here are a few pictures of the project:
It all worked well and my son loved the extra power and speed. Over the next year, I would like to build a faster go kart which can be driven by adults. This project would utilize a “Sprint Kart” frame with a center mounted seat and would only be used on asphalt surfaces such as parking lots. I would only use it for recreation (i.e. not competitive racing).
I am considering the following:
72v Motor.... something like this .... http://www.electricmotorsport.com/pmac- ... hp-pk.html
72v Charge Controller:
72v battery pack using same cells referenced above
Up until now, I have only used pure nickel strips for my series and parallel connections. I could "stack" the nickel strips to obtain a higher "amp" capacity but I believe using bus bars for the 72V battery pack would be advisable. I still have much research to conduct but I would appreciate any feedback from the forum. Thanks.