are setting lost during battery change

[kf4dsj]

Are settings lost during battery change?

[Ed Pawlowski]

No, the flashlight will still go on the same way, just push the switch.

Other than that, a little more detail will get you a good answer. Clock? Car? Computer?

[micky]

I agree with Ed that more details would help, but I'm going to take a chance.

Certain engine computer settings are lost. If you want to keep them there are gizmos for sale or you can make your own that take a 9-volt battery and plug into the cigarette lighter that you should plug in before you disconect the battery and unplug only after the new one is connected. You probably should take as little time as possible, no more than 30 minutes to change the battery.

That said, mine has gotten disconnected many times and I can't tell the difference. It's takes 50 miles or more for the car to calculate the best settings, and until that time, it's wasting a little gas or not having quite as much power, but on more than one car, I can't tell the difference. If you can tell the difference, next time refer to the prev. paragraph.

[Marilyn Manson]

Some vehicles lose personalized settings such as radio stations, seat positions, etc. Both of my Hondas requires a code to even get the radio to turn back on. It's an anti-theft device. Steal it and you better have the code with you when you install in another vehicle or it won't work. (Granted, if you steal it then sell it, you might win but the buyer will be out of luck.)

One Honda remembers all the settings - even BT paired devices - once the code is entered, the other one wakes up but everything needs to be reentered.

Regarding the computer settings, a few critical monitors don't become enabled until a few drive cycles have been completed. While the driver may or may not notice a difference in performance, the vehicle will not pass an emissions inspection. Even though there is no CEL, the computer will show that the monitors are not active and the emissions testing machines will spit out a message that basically says "I can't tell if your emission readings are within spec because they are not being monitored. Come back when all the monitors are active."

[Ed Pawlowski]

Recently had a battery installed at Advance Auto. No charge to install and the plug in a gizmo to the OBD port to maintain power.

Good deal since my battery is in the trunk and weighs 66 pounds. Let them do it.

[micky]

I forgot about radio stations. Every car I've had forgets those.

I forgot about needing a code. No car I've had required that, and it certainly is a big reason to use a battery backup while changing the battery. (Of course the OP didn't say what kind of car he had, so knowledgable people could tell him whether he'd need a code or not. Maybe he's writing a treatise on all cars.)

Sounds very good, but I'd verify before they got started that they were going to use this OBD thing. It seems much like something not every branch or not every installer would always remember to do.

Heavy, man.

[Wade Garrett]

Hmmm, so what kind of vehicle has a battery that big?

[Scott Lurndal]

A 100Amp lead-acid vehicle battery can weigh 32kg.

[Ed Pawlowski]

Genesis G80. The battery is H-9