92 LS400 Battery Problems
#1
Driver School Candidate
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92 LS400 Battery Problems
we put in a brand new battery about 2 months old but it drained already. this is about the 3rd time it has happened. the charging system is good. no engine check light. any suggestion???
#3
Lexus Champion
yes, you have a drain, assuming your alternator is charging correctly, and the vast majority of drains are from some type of aftermarket add-on, like Shiryo correctly pointed out, an aftermarket stereo, HID's, etc.
bone stock LS400's do not tend to have any drains
the first step is to put a voltmeter across the battery with the engine at idle, to verify alternator performance, you should have at least 13.1V at idle and at least 13.6V at 2500rpm
bone stock LS400's do not tend to have any drains
the first step is to put a voltmeter across the battery with the engine at idle, to verify alternator performance, you should have at least 13.1V at idle and at least 13.6V at 2500rpm
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