GS - 4th Gen (2013-2020) Discussion about the 2013 and up GS models

Battery charging repair mode bone-head mistake

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Old 10-15-22, 02:18 PM
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onepercent
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Default Battery charging repair mode bone-head mistake

Hi all,

I would appreciate your expert opinions on my stupid mishap.

My GS 350's battery was dead and so I used a NOCO Genius 5 to fully charge the battery back. Then I used to repair mode of the charger to do desulfation of the battery. I used the repair mode while the battery was still connected to the vehicle electrical system. I eventually found out from the small fine print of the manual that it was recommended to have the battery disconnected from the vehicle before using the repair mode as the repair mode's charging voltage is at 16.5V (as opposed to 14.5 V normal charging voltage) and vehicle electronics could be sensitive to the higher charging voltage. I don't know the Lexus electronics' sensitivity to the higher charging voltage.

I have made this bone-head mistake before I realized this I needed to take this precaution. I started the car and checked all the audios and GPS, etc. afterwards, and I have not found any electronic malfunction as yet. I would like to ask the forum whether there is a more comprehensive way to do a diagnostic to see whether there was any damage to the electronics due to my stupid oversight.

Many thanks in advance.
Old 10-15-22, 02:52 PM
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jkeller
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I don't think 2 volts over is going to do any damage. Most electrical devices/modules on this car are key on dependent.
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Savjam (10-16-22)
Old 10-15-22, 04:40 PM
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703
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It’s fine. Not a constant voltage and the car is off.
Old 10-16-22, 01:03 PM
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JeffKeryk
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Car is fine. You need to go stand in the corner young man...
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tompass (10-16-22)
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