Dear all, Nice to meet you all. I am in the UK and am wondering if you can help with the following: 1) What amperage do you use (6A, 8A, 10A or 12A) when charging at home on the granny cable/portable charger? 2) How many hours does it take you to go from 20-80% on the 64kW battery? Many thanks,
I don't have a 64kW battery. It would make my MINI Electric too heavy and take all the fun out of driving it. Oops, sorry, forgot I was trespassing in the Kona Electric forum.
I use it at 12A when needed. It generally takes around 48hrs for a full charge so 20-80 is about 30hr
My aftermarket portable EVSE displays total session power and that leads me to know that it’s providing a rate of 2.08 kW. It’s 9.1 A at approximately 230VAC. For that I get 2.5% added charge per hour. You can reasonably extrapolate that ratio very slightly either side but the Kona’s fixed losses are significant enough that there is a zero offset to that linear relationship. It’s also possible's that the battery heater may kick in at higher charge rates during winter. I’ve seen that this is very consistent for me all year round and between any two charge levels.
My home charger is 7.5 kW. I almost never let my battery get down to 20% or close to it, but it takes me about two or two and a half hours or a to go from 55% or so to 80%.
Thanks for all your answers everyone. The chargers in the UK are only at 10A and Hyundai don't recommend charging at home too much to prevent over heating of sockets ......so not sure if i can leave it for 30 hrs charging... How many km or miles do you get for 1% of charge? and what year of the kona do you have? Mine is 2020 and 1% is equating to 4 miles or 6.4km. Many thanks,
In the US using a 240vac charging station with 40A capability my 2020 Kona Electric charging rate is around 10%SoC per hour, current limited by the car's OBC. Miles per 1% is an elusive number, as too many variables go into it. Using EPA, it's 2.58 which any competent hypermiler can easily beat. When dealing with kWh consumption, don't forget to distinguish between wall-to-wheels (EPA) and battery-to-wheels (car's display).
Hi Joe, that's interesting. So the car's max amperage is 40A? I wonder if thats the same for most Hyundai 2020 Kona's.
No, the car limits the charging current to a bit under 32A at 240vac. I mentioned that 40A is available to emphasize that the EVSE is not the limiting factor. Note also my edit of my above post.