2qq

I thought everyone knew that. My son is an electrician. He started laughing when he heard this guy say positive first.

MrRosiesfavorites was tee

Electricians dont wear rings for similar reasons

I have personal knowledge of a generally similar accident. The ring and wrench weren't welded together and to the vehicle, but the ring did a really good imitation of the filament in an incandescent light bulb and nearly completely "cut" the finger flesh around the bone...in effect, an electrical self-amputation. I had never heard of similar accidents and figured this was about as likely as being hit by a meteorite, but your report makes me think maybe these happen with some regularity, that they're just "infrequent" rather than being almost impossibly rare.

Both replies are perfect! Thanks Mates.. Eddie J... Lake Grove N.Y.

Heres another idea. Use a car/truck battery charger. Connect the Positive (+)/Red jumper from the battery charger to your Alternators Positive (+)/Red connector. Than take the battery chargers Negative (-)/Black connector to any good Ground (-) on your vehicle ie a fender bolt or the hood latch.. some place under the hood with a good Ground (-) connection. Good luck hope this helps.

Glad it was helpful!

The instructions I give is what is written on the back of code saver unit, buy it and read it yourself I have no connection to the sales of this unit. Because it is always positive first, negative second when connecting two batteries together. ALWAYS, in every country in the world, look at your jump start instructions. Positive of dead battery to positive of healthy battery, negative of healthy battery to negative of dead battery. You got confused because when removing or placing a dead or live battery directly into a car with no other battery connected you go negative first then red. Simply put there is a difference between connecting two batteries and replacing a battery.

cheers

Hahaha! Didnt notice till I read this comment!

Didn't bother me lol

At least they weren't screechers...

Electricians dont wear rings for similar reasons

Yes - that's what I would do -

Excellent advice!

That doesn't always work as some cigar lighters do not have power unless the key is turned on. Some have power all the time and those would work with the memory saver hooked into the lighter. The lighters that only have power when key is turned on won't have the connection to the power system in order to keep power to the system.

No.

he he glad you like the term "ring spanner" but that's what we use here cheers

@@heymargaretlook NZ to be sure!

@@mikechapman7015 A rung spenner?

Shouldn't put videos out that are wrong in every aspect stick to pen pushing .

Not using the device shown. These devices have (or should all have) have an inline diode so no current can flow into the 9V battery.

@@antonystringfellow5152 Good point, Dont try and make up your own with just battery and wires.

Yup

I´m lost here; some say +,some say-; I think it´s best to remove both at the same time ,that´s what I´ll do from now on

Rule of thumb is always remove the negative terminal first.

To the comments of Jose Peixoto & Larry Bui. You are right if you simply replace old for new battery and don't care if settings for radio and clock etc, are wiped out. However, if you want to retain the your settings the the video is correct.

I never heard any one recommend removing the positive first (unless it's a very old or odd car with positive ground.) The vast majority of cars have a negative ground. By removing negative first, you reduce the chances of shorting something to ground. If the wrench being used to remove the negative terminal should touch any grounded part of the car - no damage done. If you go for the + first and touch the tool to metal whilst the + is still connected, it's a direct short circuit of the battery. This could be very dangerous, allowing potentially hundred of amps to flow. Battery could explode, fire could occur, etc. And how could one possibly remove both simultaneously? Loosen both clamps simultaneously? What if the tool touches the car's frame 2 microseconds before you remove & loosen the negative?

Because he's using external power, if he removes the negative first he'll lose his settings.

Yes if your charger is 'dumb'. Most 'smart' ones check if battery is present. If not (like when you disconnect old battery), they shut down.

Please don't. If the battery is not present, you could get low current voltage peaks from the charger that otherwise would get absorbed by the battery and may destroy your electric systems, especially on "dumb" chargers.

Voltage spikes are not related with 'dumb' or 'smart' but with cheap or decent quality charger. 'Smart' will cut the power, if batery not present. To be safe, best ask proffesional to do the job.

+Isse Ali It's called a memory minder and should be available at car accessories outlets.

+heymargaretlook got it thanks!

heymargaretlook

heymargaretlook

of course! That is the voltage of the car battery, :)

LOL cheers

Never presume everybody is as knowledgeable as you.

You need those fast talking yanks...lol

the ladies must love him because he takes his time

colin s Any car accessories business should stock this

Djordje Stevovic The device must have a diode to prevent back-flow of current. It would be easy to home-brew if you have the skills.

If I disconnect the 12 volt first then there's no point of putting the 9 v because everything is gone you fucking idiot

@Moh Hin Lee Heres a link to the Projecta memory minder in the video. www.autoelec.com.au/projecta-battery-memory-security-code-radio-saver

Yes, removing the negative cable first ensures that you do not accidentally weld your wrench to any grounded metal when tightening or loosening the positive battery cable. There is no danger of arcing when removing the negative cable first because the frame and the negative terminal is at the same potential.

I got one at Autobarn 5 years ago

Ray Stroud mate as a mechanic the cig lighter is connected to electrical system and

Sorry didn’t,t finish. This then powers the electrical system and keeps alive the memory to the car including the computer.

@@gregmatthies8128 - Thanks. I've now bought a jump starter which has an auxilliary outlet to provide a cigarette lighter-type connection. However, now the weather is warmer the old battery is coping OK so I can wait another year :-)

Right on!

looool it's specific,not pacific :)

It’s a common mistake that Aussies make for some reason.

Use "atlantic settings" if you live on the east coast of US.

That can fry your computers and electronics in a new car. DON'T DO IT!!!

@@piggerGg Thanks Hillbilly!

I was thinking about doing like you described but the clamp on the new battery will be in the way when connecting to the car. I prefer to use a backup battery.

@@torTxoFognaTuluZ It does work... we hooked up our 12v trickle charger to the input inside my wife's jeep while I swapped out her battery. It worked perfectly, and we didn't reset all of the internal memories for her radio, presets.. etc etc.