Home Chargers - Cold weather issues, or more FUD?

[QLeo]

Some vehicle's BMS system will restrict charging when temps are low and SOC are high. Ours did that this week when it was -4C - as the SOC increased above 70% the charge rate dropped - though never stopped.

Ta. The story was that the charge stopped. and that public slow chargers worked, so it's unlikely to be that scenario.

 

[NLMGSAN]

Ta. The story was that the charge stopped. and that public slow chargers worked, so it's unlikely to be that scenario.

True. It just illustrates what others experienced. And yes, that is different.

 

[Rolfe]

I've never noticed any problem and it gets quite cold here. Not so far north as @QLeo but considerably higher up.

 

[Everest]

I've never noticed any problem and it gets quite cold here

"here" not being Bali, I assume

 

[QLeo]

"here" not being Bali, I assume

It was the "but considerably higher up" that bothered me. Obligatory "I know my place" sketch"

( For those outwith the UK, see here: Class sketch - Wikipedia )

 

[Anon70]

Have they tried pre conditioning the battery to see if that makes a difference?

 

[QLeo]

Have they tried pre conditioning the battery to see if that makes a difference?

I don't know. The story went that the home charger doesn't work when the public chargers do, so I doubt it's a case of trying this and trying that, IF the story is related to cold weather. The most plausible explanation is @gary333 in comment number 15.

 

[EVsince2016]

We don't have a home charger, so have no experience of this. But two folk locally have claimed that when the weather is cold (it rarely gets very cold here on North West Scotland, but lets say less than -2 or -3°C) their home chargers refuse to charge their cars. One has a Citroen van and another an MG4.

Do the collective minds here think this could be a real issue, or is it more FUD, and there's something else going on? We asked (subtly, I hope) and the two units were installed by different people.

Cheers

S

Our MG4 would never charge below freezing until it got the software update and since then its been fine.

 

[QLeo]

Our MG4 would never charge below freezing until it got the software update and since then its been fine.

Was that on any charger or specifically a home charger?

 

[EVsince2016]

Was that on any charger or specifically a home charger?

Home charger, a Zappi. The car actually refused the charge. It was an early model and a software issue.

 

[QLeo]

Home charger, a Zappi. The car actually refused the charge. It was an early model and a software issue.

Ta.