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Zero Motorcycles Forum | 2013+ / Re: dead 12volt Dc-dc converter circuit?
« on: October 23, 2021, 02:02:04 AM »
I have the 2016 zero FSX. My 12 volt system works intermittently. I checked the input voltage to the dc dc converter and there was voltage. I wasn't sure how to check voltage on the signal wire. After a lot of research, I finally shelled out the big bucks to get order me a new dc-dc converter. Oddly the dc-dc converters from the factory are rated for a minimum of 80 volts when the batteries provide a constant 105 volts to the converter. There is no documentation for the max input voltage and if the voltage fluctuates, and reaches the max rated voltage, it will destroy the converter. I guess that is the function of the 125v fuse. To make sure the converter doesn't get fried.
Like clockfort mentioned, there weren't any 96V 500W converters available. Only 96V 300W ones. The only reason I can think of for Zero to use the 80V ones is that if your battery runs really low any the voltage drops below 90V, you wont have the 12V supply. Maybe they are trying to match the minimum battery voltage with the converter.
Hopefully Zero custom orders a 96V 500W converters soon to replace the current ones.
Like clockfort mentioned, there weren't any 96V 500W converters available. Only 96V 300W ones. The only reason I can think of for Zero to use the 80V ones is that if your battery runs really low any the voltage drops below 90V, you wont have the 12V supply. Maybe they are trying to match the minimum battery voltage with the converter.
Hopefully Zero custom orders a 96V 500W converters soon to replace the current ones.