Driving MG4 to Zero%

[pjmmk]

When mine reached 9% SoC , the range changed to three dashes. I was only a mile or so from home so I didn't worry - but it's not really a very useful indicator!

 

[Rolfe]

When did you last do a long charge?

 

[siteguru]

When mine was down to 1% I'm fairly sure it still showed a range ... maybe 2 miles.

 

[Corindikev]

Never been below 5% but the car has never reduced power or made any comment other that the standard message at 20% & 10%. The 2.3% buffer from the so called 61.7% usable to dead empty probably gives a bit of crawl distance. I haven't been game to try it though.

 

[pjmmk]

When did you last do a long charge?

Me? That very day....
I cleared the timer and limit and plugged it in. Just left it there till it stopped taking power. I don't really like letting the charge drop so low so I don't know if that full balancing charge affected the range indication.

 

[Rolfe]

I do mine every few months and I've never had any worries or strange behaviour at low SoC.

 

[Mouss]

Thread 'How Low Can You Go .... (SoC)'

Dec 19, 2024

It's GOM calibration and balance time, so I ran the car down low and left it for a couple of hours before starting to charge. This was a photo I took immediately before starting the charge:

Anyone else gone lower?

PS - I checked the SOH with Car Scanner and it said 92.66%. I'll check again once charging and balancing is all done.

• siteguru
• battery calibration charging electric mg4
• Replies: 24
• Forum: MG4 EV Forum

• 

 

[siteguru]

Ah - so it was 2% I got down to, not 1%.

 

[Wizard of Oz]

Ah - so it was 2% I got down to, not 1%.

So, you had twice the range... Nothing to worry about, then.

 

[gravity]

People report, that there is still 10-15kms left until full stop on LFPs. If i look at the carscanner, the display soc and bms soc differ about 3%. So right in line. I'd wager there's about 1.5-2kWh of bottom buffer below 0%. So unless you go crazy with accelaration below 0% display, you're probably safe for at least a few kms.

Thanks @hojnikb, Please share a picture showing Car scanner BMS SoC vs Displayed SoC (at any state). You will be doing the doubters out there a great service. ;-). Thanks in advance