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Discussion Starter · #1 ·
I have a 72 volts Zap. I want to add an extra battery for a 84volt car. What do I need to do for the charge and motor controller?
 

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This was done years ago: 84V Upgrade to my ZAP Truck - Endless Sphere
It was also done somewhat later with this result:


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The burned vehicle, AIR, had a switched-in extra boost battery. I think it had a switching system not rated for the voltage(a real no-no), problems with a dead short from a bad switching sequence, or a combo of all of the above- probably exacerbated by poor fusing.

You'll probably be ahead of the game by just buying a beater Leaf. These ZAP vehicles were, AIR, pulled by NHTSA because of poor braking performance. I ended up with the burned one. I kick myself for passing on a set of Lancair wings that I would have attached to the burned carcass . Not to ever fly, but to mess with pilots and drones flying over my bone yard!
 

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Discussion Starter · #4 ·
Ouch. Did you convert the charger to 84 volts or kept the 72 hopping for the best?
 
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