Rapid Charging - What speeds are you getting?

[WAC 768]

I am trying to understand how the BMS controls the rapid charging speeds and wonder what speeds you are seeing from low SOC <20%?

I know this is very subject to temperature both external and battery but from my experience, it seems impossible to correlate and i am geeting anything from 19KWH (ambient temp 18c and after a short 10-mile trip) to 48KWH (ambient temp 22c and after a 60-mile trip). In all instances, the battery temp is normally around 25C, so based on this, I would expect the full capacity of the charger.

 

[Deleted member 2439]

My experience is only with InstaVolt chargers and is as follows:

Test 1 (temp was between 0 & 2) - rate about 22kW
Test 2 (same temp, same day, different charger location) - about 28kW
Test 3/4/5 (temp was about 10) with two further different chargers - 49/50kW

Interestingly, we were the only vehicle in use on the first two, but there were others in use whilst we were charging for two of the last charges.

As the first two were for a test as we had only just got the car I was concerned by the findings and contacted instavolt for comment. They advised that it was the vehicle which determined the charge rate and that temperature was a big factor. Also note that the second test was conducted after a 20 mile run on A roads - so the battery would have been a fraction warmer - hence the increased charge rate.

HTH - Rob

 

[Jake]

I have never got more than 36kWh rate even with ambient temperature around 18C after a 25 mile run and down to 26% SoC. These are Rapid chargepoint's that I know have charged other cars at 45kWh rate on several occasions. I am waiting for the warmer weather to see if there is any increase. If not I will check with my dealer.

 

[Elec Car Aust]

Here in sunny Queensland Australia we have been consistently getting between 38-48 kWh when CCS charging if the battery SOC is between approx 10 -70%. usually after driving at least 20-30 klms before charging. Hope this helps.

 

[Paulie68]

A lot of charger output isn't down to the car, but rather the charger and how much current it can access at a given time I think.

My own local Lidl charger will sometimes charge my car at nearly 50kw, other times, I only get about 35kw. The outside temperature, and state of charge on the car being, give or take similar.

 

[bloggsy]

I charged at a free CCS charger the other night (around 6 degrees C), starting at 19% SOC and stopping at 71% SOC in 30mins (I'm assuming that's about 23-24 Kw/h?).

I know someone had posted how to work out your charging speed but I can't find it - can anyone remind me please?

Cheers

Bloggsy

 

[WAC 768]

Thanks everyone and Australia seems along way to go for a 50KW charge although the sun would be nice.