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Old 09-17-2008, 11:33 PM
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I'm running a 96volt system on a vw bug. But something seems to be wrong. I start driving and the volts drop rapidly to just under 60v, and they seem to stay there, Is this normal?

Richard
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Old 09-18-2008, 06:36 AM
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Quote:
Originally Posted by rrmendoza View Post
I'm running a 96volt system on a vw bug. But something seems to be wrong. I start driving and the volts drop rapidly to just under 60v, and they seem to stay there, Is this normal?

Richard
That wouldn't be normal.
I would ask, where are you measuring the voltage, at the batteries or at the controller?
If at the batteries, you could have a bad connection on one of your batteries.
At the controller would be after a lot of connections, you could have a voltage drop across a bad connection.

Are any of your connections getting hot?

Does the voltage rise back to 96v when you let off the throttle?

You might want to setup a temporary way to measure voltage of your individual batteries. This will help isolate a bad battery. You could measure one at a time, just make your meter connection, drive a little record voltage then put meter on second battery, etc.
Good luck, Mike
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Old 09-18-2008, 06:58 AM
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The volts are being measured at the controller, and yes it slowly does come back up when I let off the throttle.

I'll try and measue each battery individually.

Thx for the advice.
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Old 09-20-2008, 04:42 PM
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thats some pretty major voltage sag.... I'd check the voltage per battery if you can.... see what one is getting low.... I think you might have a bad battery or two.
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