Content by MickeySw in April, 2026

You can get them for less than half second hand..

You're correct, the following 'cryptic' entry is only in the MG5 FL manual: "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...

Agreed, reported SoH is usually calculated by the BMS based on a degradation formula which takes into account battery age, no of charge cycles, etc. The MG5 manual recommends (although not very clear) to re-calibrate the BMS regularly (four times per year iirc). By deep...

Balancing alone won’t do much for SoH, you need to re-calibrate the BMS, I.e. discharge below 10% then AC charge without interruptions to 100% and let it plugged in until the car stops the process.

85% seems low, however it would not be the first time that the wrong value was given. An easy way to check SoH is to charge to 100% and reset trip data afterwards, the range should show WLTP - degradation..

Using a standard single phase cable, you will get around 7kWh (-losses) from a 22kW AC charger. If you are thinking of buying a 3 phase cable make sure it's rated 22kW (32A/phase), while your MG will never make full use of it, it will still allow you to charge it @ 7kW on a single phase supply...

If you believe AI then the MG4 Urban is capable to charge around 10kW if you use a 3 phase cable..

Any chance you could also post max cell voltage to get an idea of current balancing?