10-100% charging

[Amun]

There is a thread in the MG4 section, which suggests that 10-100% charging is required every so often - apparently this is mentioned in the MG4 manual.

I can't find anything in the MG5 manual that suggests that this is necessary - only charging to 100% and allowing equalisation to take place every so often.

So - is it necessary?

 

[Jomarkh]

Hi, I have an SR Excite and charge from anything between 30-50% back up to 80-85% and monthly to 100% to balance the cells.
I haven't seen were it says the 4 need to be done from 10%.

 

[Amun]

I haven't seen were it says the 4 need to be done from 10%.

Page 295 of the MG4 manual - there's a thread in the MG4 section, as well

Actually, it does say the same on page 244 of the MG5 manual, as follows (my italics) :-

"When using the vehicle on a daily basis, it is recommended to fully charge it at least once a week, which is conducive to the health maintenance of the high-voltage battery pack; every 3 months to half a year, a low-power (less than 10% or 1 grid) full charged is performed"

I missed it as I was looking under Equalisation, not Maintenance

 

[5teep]

Fully charging yes but 10% to 100%? no. If you charge your car on AC (at home usually) once a month or so to 100% you'll be fine. To be honest unless you are doing a massive amount of DC rapid charging you'll not notice any difference.

 

[MickeySw]

every 3 months to half a year, a low-power (less than 10% or 1 grid) full charged is performed"

This has nothing to do with cell balancing, rather this procedure is required to measure and update the battery’s capacity (SOH).

 

[Amun]

Fully charging yes but 10% to 100%? no. If you charge your car on AC (at home usually) once a month or so to 100% you'll be fine. To be honest unless you are doing a massive amount of DC rapid charging you'll not notice any difference.

But why would they put it in the manual if it isn't required?

 

[Amun]

This has nothing to do with cell balancing, rather this procedure is required to measure and update the battery’s capacity (SOH).

So still required, but for a different reason?

 

[MickeySw]

So still required, but for a different reason?

Correct

 

[CanyonReveller]

This has nothing to do with cell balancing, rather this procedure is required to measure and update the battery’s capacity (SOH).

Indeed it is, and it is a standard maintenance procedure for basically anything with a rechargeable battery, such as an EV, mobile phone, or laptop.