38kWh Ioniq

I have the car back now. Drove from Galway to ballinasloe without any issues.

Connolly's waived the fee when I went to collect it. I'm not exactly sure why, I pushed back a little when they said it was 12v but I didn't have a big problem with the fee (or even the price of the 12v) but I certainly wasn't complaining and do appreciate it.

They charged it to 100% (which by itself would be ~€30 public charging )and even washed it 😅. They also gave me a print out of their battery test print out when I asked to boost my case with halfords.

The 12v was working enough to open the car etc when I got there, but I had no faith in even the 10km journey to halfords so I took battery out there and brought it in to halfords.

Halfords wanted to test the battery, but their battery tester leads were "still not back" (wherever they were) so they agreed to replace it.

A word of warning though, as I've recommended the halfords battery on this thread before:

He asked what car it was and when I said it was an EV he said he'd replace this one but there would be no more replacements. I did push back a bit on this saying I put the model in when buying the battery and there was no warnings when buying it but he was fairly adamant. I didn't really see the point in continuing a fight about a hypothetical situation down the road when I was getting resolved today, So I left it off.

Got my wife to throw the battery into the car when we got back so she can replace it in future , it's honestly a 5 minute job even if you don't have a clue. Just need a 12mm socket for the base and a 10mm for the terminals. Loads of room to work too

For sure, other than getting quotes for a service nearly 2 years ago I have no dealings with Connellys, so they didn't owe me anything.

did you have a power pack to start the 12v with you? (fellow 38 owner with a yuasa battery!)

Brought the car to Limerick Hyundai today to be investigated. They are my usual dealer for service etc. When Connolly's said it needed to be rebooked in for next week I said I'd just go to my own dealers instead.

They had been talking to Connolly's, so might be the reason Connolly's waived the fee between telling me on the phone there was a fee and collecting the car the next day.

Mechanic rang me and talked through it.

• They couldn't find any issue with the HV, battery SoH 100%, 0.0v difference between cells. They gave me a print out saying as much.
• He cant figure a scenario where you'd see that level of limited power without seeing a low battery warning
• Only faults he could see from what Connolly's logged with Hyundai were 12v related. (they would have been cleared by the time he got it).

Reading through my posts on the thread, i realized I missed a part, that I needed to jump the car Saturday morning, 12v was completely dead. He said it shouldn't have made a difference because once it's in ready to drive mode everything should have been operated as normal. And the fact I was able to start the car a few times meant the 12v would have charged during the drive up.

Seperate to the HV issue. He did say that once you've any issues with the 12v he recommended swapping it out. Said the yuasa was a better spec than the one they put in.

I would have preferred a more definitive answer but I do feel like he had been thorough.

Maybe it's just a case of if you have to jump the car , don't trust the SoC til you've got it back on the charger.

But it has to get serviced in few weeks time so I'll run the battery relatively low locally and drive it hard to see if it comes up (not that I was driving hard when it went).

Thanks for the advice and suggestions over the last few days, was a stressful few...

Hello, can anyone recommend a 12v battery?

Its died 3 times in last 6 months. From casual observation, I can see the blue "topping up 12v" light flashing on the dash maybe 10 times a day………which I presume happens as 12v battery is not in a good place and constantly needs to be topped up. Current 12v is only 2 years old though

My wife is on her third 12V battery in her Ioniq 5, though reckon at least one was caused by ICCU problems.

She just went to our local (Co Wexford) tyre place where they changed the last one for €80 in a few minutes.

The Hyundai mechanic I was talking to recently thought the halfords battery was a good one. But just don't be buying it expecting them to honor the 5 year guarantee.

which exact battery was it? A Halfords brand or something else

https://www.halfords.ie/motoring/batteries/car-batteries/yuasa-hsb056-silver-12v-car-battery-5-year-guarantee-173975.html

Galway plaza only has two chargers normally and I believe it's even been reduced to 1 since the weekend. Ionity athlone would probably be a better bet.

At one point, Halfords wouldn’t work on EV’s so you might not have the option. I’m sure every branch is different but they’re generally not the most competent anyway.

Its honestly a 5 minute job, just need a 10mm socket for the holder and 8mm socket for the terminals. Doesn't need to be coded or anything.

Look up any video about changing a battery , but basically take the negative (black with a - ) lead first and then the positive (red with a +) swap the battery and then connect positive followed by the negative

I talked my wife through putting the new one in the last day and she'd be happy enough to do it next time. She'd be relatively handy but not too unlike myself, doesn't really know anything about cars. One bit of advice is when you connect the negative terminal onto the new battery it will spark a small bit when it first touches, its normal.

I changed out my mams battery over christmas on her Ford kuga and it was a serious pain in comparison to the ioniq, you have to remove and airbox and fold down other trim to slide the battery out. the Ioniq the battery is there unobstructed with loads of room to work with.

Probably the most important purchase for any Ioniq is a battery booster pack. Missus has a Nocco boost, always in car and used twice.

Must remind her to charge it..🙂

My 12v battery has died 3 times in 6 months. I have a booster………………but I guess its probably just time for a new battery at this stage (current battery only about 2 years old though)