Can a stock alternator handle 4 driving lights?
12-18-2010, 06:17 PM
#1
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Can a stock alternator handle 4 driving lights?
I want to mount 4 driving lights (55 watt each) in addition to the stock high beams. Can the alternator handle it?
12-19-2010, 06:51 AM
#2
That's about 17A of added draw. I'd say at idle you'd give it a bit of a work out, but pretty much anywhere above 1500rpm you'd be 100% okay. If you connect them to the battery through a relay, you'd be able to use the battery to help keep the load off the alternator if you are worried. I ran two 55W Hellas on my 5kq with the stock headlamps, no issues and it has a smaller alternator than your B4-90.
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