Battery preconditioning?

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Phorridge
Posts: 141
Joined: Fri Dec 23, 2022 5:32 pm

Post by Phorridge »

Been reading about the n ed for preconditioning the battery in advance of a rapid charge in cold weather.
How is this handled on the Mégane as there doesn't seem to be any user input available?

yvonner2002
Posts: 5
Joined: Thu Dec 22, 2022 12:52 pm

Post by yvonner2002 »

I haven’t put this to the test yet but my understanding is that you should input a journey into the map and from there select the charger that you are heading to. The car then automatically conditions the battery to the optimal temperature for the arrival time.

Is this correct and can anyone confirm that it works in practice?
Phorridge
Posts: 141
Joined: Fri Dec 23, 2022 5:32 pm

Post by Phorridge »

That would make sense. But I'd it true.
I've just driven a hour and hooked up to a fast charger but only getting 22kw.
tarbat
Posts: 43
Joined: Wed Apr 06, 2022 2:36 pm

Post by tarbat »

Phorridge wrote:
Thu Jan 26, 2023 9:59 am
That would make sense. But I'd it true.
I've just driven a hour and hooked up to a fast charger but only getting 22kw.
.
A fast charger can only deliver 22kw. You need to find a RAPID charger for anything over 22kw.

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Phorridge
Posts: 141
Joined: Fri Dec 23, 2022 5:32 pm

Post by Phorridge »

I was on a 50kw charger. Then later again on a 50kw charger and got 9kw
tarbat
Posts: 43
Joined: Wed Apr 06, 2022 2:36 pm

Post by tarbat »

Phorridge wrote:
Thu Jan 26, 2023 2:29 pm
I was on a 50kw charger. Then later again on a 50kw charger and got 9kw
.
.
Without knowing the details it's impossible to explain. Many possible reasons:
- Using the Type 2 Mennekes lead instead of the CCS Combo lead - yes, I've seen this too many times!
- Using a charging lead only rated to a lower current.
- Charging point load restricted due to other cars charging from the same supply.
- Being at a point in the charging curve where lower current is drawn.
- Battery not at optimal temperature (pre-conditioning should alleviate this).
- Etc.

1.jpg

tarbat
Posts: 43
Joined: Wed Apr 06, 2022 2:36 pm

Post by tarbat »

tarbat wrote:
Thu Jan 26, 2023 2:43 pm
Phorridge wrote:
Thu Jan 26, 2023 2:29 pm
I was on a 50kw charger. Then later again on a 50kw charger and got 9kw
.
.
Without knowing the details it's impossible to explain. Many possible reasons:
- Using the Type 2 Mennekes lead instead of the CCS Combo lead - yes, I've seen this too many times!
- Using a charging lead only rated to a lower current.
- Charging point load restricted due to other cars charging from the same supply.
- Being at a point in the charging curve where lower current is drawn.
- Battery not at optimal temperature (pre-conditioning should alleviate this as long as you entered the Rapid Charger as your next destination).
- Etc.
Phorridge
Posts: 141
Joined: Fri Dec 23, 2022 5:32 pm

Post by Phorridge »

It was the larger charger plug requiring the cars lower rubber plu to be removed.
It was the only charger and no other car connected.
The lead was tethered to the rapid charger.
Phorridge
Posts: 141
Joined: Fri Dec 23, 2022 5:32 pm

Post by Phorridge »

PXL_20230211_094630148.jpg

So I'm sitting on a 175KW charger started at 59% battery after an hour's driving.
According to the charge chart I should be looking at 50KW or d ok but I'm getting 25KW.
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