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memory saver needed to replace a battery on a hyandai ?

diesel4me

diesel4me

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Next door neighbor wants me to replace the battery in their 2010 Hyandai Eleantra,but I'm worried disconnecting the old one and leaving it out long enough to go buy a new one (so it can be traded in for the core charge immediately),if the computer will lose its settings,and need to be re-flashed at a dealer ..

Not sure I should have agreed to help now..looking online ,I cant find a straight answer on whether to hook up a memory saver or if its not a must--I could rig up a 12V ATV battery to the cables to provide power,but I'm nervous about effing up a PCM or body control module..last thing I need is that to happen,have to tow it to a dealer--..

This is why I like OLD junks...
 
I don't think that will be a problem. you might lose the clock and radio presets, but the rest of the computers shouldn't lose the current programing. Other then the monitors, and fuel trim learn, and codes, but all that will return as car is used.
 
Hook a jumper pack to it . That's how I use to do it in the shop . Never had a problem .

And lots of parts stores will swap the battery for you . . . Except hidden battery.
 
That is what scares me,the settings being lost and the guy only drives it like 50 miles a month maybe..take a year to accumulate enough mileage to re-learn all the settings..

The fact he doesn't go much of anywhere is why the battery died probably--but its likely the original too,10 years old...
He needs a float battery maintainer..(I should get a few too)..

Group 121R battery it takes,cheapest one I've found online in stock is $120 at Walmart with the core exchanged...
I bought two group 78's there for about $105--glad my truck doesn't take a specific battery ..everywhere else in town wants $150-$170 for one..:eek:

I do have a jump pack,maybe I'll use that as Sweet K30 suggested..just hope the clamps dont come off the cables during the battery swap..
 
50 miles a month is plenty, for relearn. might look into a batter tender for him
 
I had a VW passat that was trouble, they loose settings without power and it f's things up. I just hooked up some jumper wires to another battery while I swapped. Worked fine. Then I sold it, what a stupid car.
 
yeah the Germans do some strange things. Like having to reprogram the the ecu with type and cca of new battery installed. Not doable with most generic scan tools.
 
Well,the battery is in and the car started up OK,no CEL or other problems,and despite my protests the person I did it for insisted she had checked with the dealer & on YouTube and they claimed that car wont lose ant important info if you just take off the battery cables-(its a 2008 BTW,not a 2010)..-so I told her then if anything does happen--its got nothing to do with me!..and she just took the cables off without using my jump pack on them...

Basically I just supplied the tools and watched,only helped a little--made sure they did nothing wrong...and though I refused to take anything for helping,she stuffed a 20 in my pocket..:grin:

I get kind of upset when someone calls and asks for help,then tells me they watched how to do it on YouTube and then try telling me I don't know what I'm doing (as far as the memory saver might being needed in this case)...if its so easy (and it was),why not just do it yourself ?...
o_0
Also they are planning to ditch the car next year so they wanted a lower priced battery--I tell them about the one at Walmart,but they wanted to go to Pep Boys..their "Champoin" battery is the same price as Walmarts, $120,but it has a 2-1/2 year warranty..

They specify a 121R group battery,but to me it appeared a much cheaper group 24 is nearly identical and would have fit the tray perfectly,for $50 less...if it were my car thats what I'd have went with..but its not my money or car..:rolleyes2:


All I know is some newer cars need a battery installed 100% of the time and disconnecting it can cause a lot of grief on some of them..

I've seen enough of the :poo: my friend runs into at his shop to know its best to not touch something unless you read up on it or just have an "expert" deal with it..

They could have got "free installation" at some stores,but not on a Sunday..personally I wouldn't let their employees touch my vehicle ..
I hated installing wiper blades on rainy days when I worked at parts stores...and God forbid one of the cheesy plastic adapters failed and let the blade come off and the wiper arm scratch the hell out of the windshield..:ooo:...I'm surprised stores offer free installation on anything any more due to liability..
 
What, you mean I'm not an "expert" if I've watched the You Tube video? How many videos do I have to watch? What else could there possibly be to know about anything? What about if it's from the guy that really knows about squarebodies, does that make me an "expert"?
 
diesel4me said:
Next door neighbor wants me to replace the battery in their 2010 Hyandai Eleantra,but I'm worried disconnecting the old one and leaving it out long enough to go buy a new one (so it can be traded in for the core charge immediately),if the computer will lose its settings,and need to be re-flashed at a dealer ..

Not sure I should have agreed to help now..looking online ,I cant find a straight answer on whether to hook up a memory saver or if its not a must--I could rig up a 12V ATV battery to the cables to provide power,but I'm nervous about effing up a PCM or body control module..last thing I need is that to happen,have to tow it to a dealer--..

This is why I like OLD junks...
Click to expand...

IMHO the best advise you could give them is to trade it in as is on something American made, new or used.
 
Actually the owner is 65+ years old and lives with a sister and her partner,they said they plan to scale down and only keep their 2 vehicles,which he can use most anytime to go to the few places he wants to go to..

I'd be tempted to make an offer on the car--but I don't want to own anything with a timing belt that is an "interference engine"and according to the internet ALL Hyandai's are..nope..no thanks...
Car probably has under 30K on it ,but its nothing I'd want...the interior reeks of tobacco smoke,I about gagged to death just sitting in it for a minute..he's chain smoker..
 
sweetk30 said:
Hook a jumper pack to it . That's how I use to do it in the shop . Never had a problem .

And lots of parts stores will swap the battery for you . . . Except hidden battery.
Click to expand...
Agreed. The battery in our Honda CRV needed replacing and I was going to do it. Drove down to O'Reily's, bought the replacement, and the clerk asked if I wanted him to replace it so I wouldn't have to come back with the core. Five minutes...done.
 
He could have done that,if I jumped started it and he drove it to one of the parts stores,but on a Sunday they most likely wouldn't have anyone there able to do the swap..(and I'd be $20 poorer! :whistle2: )..
It's over & done,haven't heard any complaints yet,so I assume all is well.
 
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