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Hi Guys, have any of you, or have any of you heard of the problem of melting the battery. My freind has a diesel JK (UK Spec) fitted with a yellow top Optima, after only a week he had melted the battery.:shaking: The dealers replaced the battery, but could not tell him why it had melted. He has checked the voltage at the battery with the engine running and it is 15.2 volts which seems a little high to me. Any ideas?
 

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I've heard the Yellow Top doesn't play well with high voltage, but.... And yes, 15.2 is more than a little high. Voltage regulator? Does the JK even have a VR or is that run by computer as well?
 
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