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Hi. I don't know if this is the place for this, but I thought someone might could give me a little insight.

I am working on a small electric vehicle, and we are running into the problem of a few too many volts for the controller. Due to some oversight in our planning, we are running five 12v batteries into a Kelly controller that has a rating of up to 60v. Because of the slightly higher charge in each battery, the total voltage exceeds the 60v by about 5v causing the controller not to work. The Kelly controller can take up to 130v so we aren't worried about blowing it, we are just trying to get it to work right at 60v.

My question would be then, is there any way to lower the total voltage by about 5v? I know we could use a resistor, but we don't want all that loss associated with a resistor.

Thanks for any help.
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