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Discussion Starter #1
I notice the problem when I have my headlights on (DDM kit) and Im in lift around 7500 my battery light comes on. Battery was replaced last year.

Any ideas?
 

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Alternator
+1 . Almost always points to the alternator. Did the lotus engine come with an alternator or did they use the one from your 1ZZ.
 

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Discussion Starter #4
+1 . Almost always points to the alternator. Did the lotus engine come with an alternator or did they use the one from your 1ZZ.
The 2zz came with one. I did ask for my 1zz alterntor back just in case one day I had a core.
 

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Discussion Starter #6
Could be a bad connection.
I check on that.

When my HIDs were first installed (1zz) my Pioneer Avic N4 it showed a 1 volt drop when I turned my lights on. It was around 13's down to 12's I believe.
 

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Alternator voltage output is regulated.
 
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