hv battery fault

Last night I used a fast charger on the M25. Only charged for 15 minutes then got HV fault. Locked the car and returned 20 minutes later all good. I've seen some post where they say disconnect the battery. Is it worth carrying a small jump starter? TIA

Is this still happening to people? I haven't seen it mentioned recently. I've only DC charged my pre-facelift MG5 once, to test it out after I bought it, as I generally just charge at home,

Because it was quiet at 7am, I decided to try the 15 minutes free trick before I started my shopping and confirming the charge at my local Tesco's Pod point today. I plugged in, sat in the car and locked it, the car started charging. 15 minutes later the Pod point clicked off so I thought I...

Typically, on the day I really needed to go out and do things, I got into the car and it wouldn’t go! I kept getting ’HV battery shut off’ on the screen whether I was in Auto or Electric mode. Looking at the 12 volt battery meter, it is red and well below 12v. I’ve no idea why. I last used...

So today I was driving along a week after cars first service, typical, and the above error happened. Car died, steering died, brake assistance died. All 12v systems stayed running over & car rolled to a very quick stop. Luckily happened in a quiet village at 20mph not motorway. Pulled 12v...

Anyone else had this randomly pop up? Wife was driving along at roughly 30mph, already done about 10 miles, nothing appeared wrong etc, message popped up with red battery sign HV Battery Fault, it went after about 10 seconds, no performance impact etc. Background: Car came with Jan BM, is only...