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Set up of test: Car left unused for 48hrs Initial HV battery SOC: 38% Car not on charge Car not queried via App Key kept well away from car Lights verified off and nothing plugged into USB Car did 50 miles in the week preceding the test Results: Car worked fine 48 hrs later 12V battery showed...

Thanks for your feedback everyone. I'm planning to leave the car unused for 48 hours to see if the problem reoccurs. I'll have driven roughly 100 miles in the week beforehand, and I'll leave it not charging, with less than 50% in the HV battery. However, I want to be absolutely sure that I'm...

I've just got the MG4 back from MG after its first year service. Apparently the 12V battery is fine but "a little down on charge". The guy who serviced it suggested that every now and then, I fully charge the HV battery to 100%, and once it gets there it will charge the 12V too. They also said...

39% the second time. I have 60% in my head for when it first happened, but can't remember exactly. Neither the Green Flag nor AA guys (don't ask!) who jumped it didn't spot anything physically wrong I called MG, they said they'd take a look at its yearly service in a couple of weeks. But they...

I've had my MG4 just under a year. Twice in last month the 12V has been died when I've not used the car for 48 hours. a) Am I leaving something on and not realising? b) Is this a known fault and will MG replace the battery?