Isent the charger fill up 12v battery when charging hybried battery?or do we need to maintain the 12v battery with an other charger for 12v?
Could not find the aux battery saver,i have ioniq 2018 PHEV.Maybe it charge auto matic?But i also read in instruction book that we should drive the car at list one time evry week,so im not sure.Charging the hybrid battery does not not directly charge the 12volt battery. However via the menu Settings>Other features> Aux battery saver on will cause the main battery to top the 12volt battery automatically.
Okay,thanks we have 5 years warranty for evrything in Norway(consumer,s right)Yea my battery saver is activatet.Will be expensive when the warranty go out 1100 us dollar for a single battery,wow.The 12V battery is being charged when the traction battery is being charged. The 12V battery normally shows between 12 and 12.5V but if the grannie or my podpoint charger is charging(NOT JUST PLUGGED IN) it shows about 13.6V. It is for this reason I charge the traction battery at the Low setting on the grannie charger, so that the 12V gets a longer charge. This also saves me from using a smart charger.
This applies to my UK 2017 phev and probably all PHEV's. The big problem is not using the car so much in these days of covid or leaving doors(and interior lights) or the radio on. Edit: WITH THE CAR NOT SWITCHED ON... car off is bad with lights and radio on.
The Battery Saver+ option is accessed via the steering wheel buttons while you are in park. Driver options. In 2017 it was defaulted to OFF, later models ON, more recent cars, you can't turn it off.
The 12V Aux battery has a 24 month warrenty.
I have charged my 12v Battery with a smart charger (CTEK) connected to the battery without disconnecting the leads and would like confirmation that the charging voltage whilst running the ioniq PHEV are correct.I've hooked up a multimeter to my 12V battery a few times to see what happens when plugged in, and sometimes it charges at 14.something for the first half hour or so while other times it doesn't. I guess the car decides for itself whether it thinks the 12V battery needs it or not.
In theory the 12V battery is charged from the DC-DC converter whenever the car is on and ready to drive (i.e. started with your foot on the brake pedal), but monitoring with OBD I've twice witnessed it humming along in the low 12.somethings even though I was cruising on the highway. Eventually it jumped back up to 14.something, and other times it just floats along at 13.8V. I think the programmers tried to be too smart for their own good instead of just putting 13.8V on the battery whenever the car is running like a good old fashioned alternator would do, and sometimes their algorithm blows it and lets the battery get too low which is when you start having problems.
Some folks swear by topping it up with a smart charger once a month, I've only ever connected mine to a smart charger when the 12V battery has failed overnight. After that it comes back and works fine again for months, so there probably is some value in hooking it up to a smart charger every now and again.
That matches what I've seen in my car before ever attaching a battery charger to it, as I described in the second paragraph of the post you quoted. It's normal, but stupid. Hyundai should have just programmed their DC-DC converter to output 13.8V at all times like an old fashioned alternator instead of trying to make it smart.I have charged my 12v Battery with a smart charger (CTEK) connected to the battery without disconnecting the leads and would like confirmation that the charging voltage whilst running the ioniq PHEV are correct.
Before the voltage while running the car was a constant 14.4v and now it can fluctuate between 12,5v and 13.6v occasionally rising to 14.3v before dropping back to 12.5v. Do think this is correct or have I damaged the electronics of the car by not disconnecting the leads. I measure the voltage whilst the car is being driven on the motorway..your help would be appreciated.