DIY Change Your Car Battery Without Losing Computer and Radio Memory

This is a DIY of options for changing your vehicle battery without losing Computer and Radio Memory. Demo is on a 2012 Lexus IS 250
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[@timweb1510]

Trying to do this on a pos Chrysler Pacifica that also has an auxiliary battery for the stop/start bs we never use. It drained the big battery and my tender isn’t correcting the problem😔. I hope the safest way for the memory saver would be another battery on the ground that’s charged connected with the jumper wires. I have small clips I could try and just put on the battery I’m removing to leave on the connectors I’m removing but I’m worried about them slipping off when removing.

[@justbehandy]

I agree, may be helpful to get another set of hands/help if you go that way. Good luck.

[@juicer52]

wouldn't you want to reconnect the negative first and then the positive?

[@justbehandy]

It is recommended to hook up the positive first to avoid arching if wrench hits ground or other terminal.

[@jaywanatssimbine4725]

Or just start the car and change it while the engine is running. No risk at all

[@justbehandy]

There is a risk doing that, please be careful, as dropped tools can get flung around by the belts or other moving parts and do more damage to the car or your person.

[@loubakker5000]

Or hook a nine volt battery to the cigar lighter/power plug.

[@justbehandy]

Thank you for the suggestion, but that will will not work on some cars that cut power to the cigarette lighter/auxiliary power port when vehicle is not running.

[@mikecronin9999]

* Losing

[@justbehandy]

Thank you for catching that. Had it correct in the description but fat fingered in the title.

[@rayford8675]

👍👍👍👍👍! You need to research 'Promo SM'!!

[@justbehandy]

Thanks, but I'm trying to put stuff out there to help people out, but not much of a social media and self promotion type of person. I will consider upping the outreach more as the channel gains popularity.