Lovemyev
Distinguished Member
- Joined
- Jan 23, 2021
- Messages
- 8,127
- Reaction score
- 8,912
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- 2,669
- Location
- N.Wales ZS EV ( Gen 2 ).
@sideways when you are ready, plug in the charger and just let it do it’s thing !.
Even when it’s so called fully charged, do not unplug the “Granny” !.
Let it keep going in order for it to enter into the balancing cycle.
This only commences AFTER the HV battery is fully charged to 100%.
While your charging, you will notice that the MG badge will slowly pulse at a slow steady speed.
When the car enters the balance cycle, the MG badge will switch over to a low constant soft glow.
Don’t worry, when the balance is complete, it will automatically stop ? receiving power from the “Granny” and the charge light on the unit will go out and the MG badge will stop displaying any charge light.
Now you can unplug the cable from the car and do your checks with all 12 volt items turned OFF and especially the HVAC system.
Don’t worry if the car is on charge / balancing for a long time.
The power being drawn for the balance process is only about 500 Watts.
After the BMS update balance times can be long !.
My first one was over 10 hours !.
This time will reduce over subsequent cycles and should bottom out at around 2 - 3 hours ( ish ).
Did you ever allow the car to do a balance cycle prior to having the update ?.
MG recommend that a balance cycle should be done about once a month.
You have now entered the dark place of understand how the BMS update affects you car ?.
It’s a massive learning curve alright.
If you have a home energy meter, you can plot the cars progress using that, if you feel that way inclined ?.
Ask me how I know this stuff ( sad bugger ) ?.
I need to get out more ?.
Even when it’s so called fully charged, do not unplug the “Granny” !.
Let it keep going in order for it to enter into the balancing cycle.
This only commences AFTER the HV battery is fully charged to 100%.
While your charging, you will notice that the MG badge will slowly pulse at a slow steady speed.
When the car enters the balance cycle, the MG badge will switch over to a low constant soft glow.
Don’t worry, when the balance is complete, it will automatically stop ? receiving power from the “Granny” and the charge light on the unit will go out and the MG badge will stop displaying any charge light.
Now you can unplug the cable from the car and do your checks with all 12 volt items turned OFF and especially the HVAC system.
Don’t worry if the car is on charge / balancing for a long time.
The power being drawn for the balance process is only about 500 Watts.
After the BMS update balance times can be long !.
My first one was over 10 hours !.
This time will reduce over subsequent cycles and should bottom out at around 2 - 3 hours ( ish ).
Did you ever allow the car to do a balance cycle prior to having the update ?.
MG recommend that a balance cycle should be done about once a month.
You have now entered the dark place of understand how the BMS update affects you car ?.
It’s a massive learning curve alright.
If you have a home energy meter, you can plot the cars progress using that, if you feel that way inclined ?.
Ask me how I know this stuff ( sad bugger ) ?.
I need to get out more ?.