12v

Hi, I have a 71-plate ZS-EV and had an issue during the cold snap, where the 12V battery ran flat and the car wouldn’t start. I have managed to re-charge the battery to 100%, but now there is a fault light and message appearing, saying that there is a fault with the car charging the battery. I...

I am looking to run a 12V car fridge full time in my MG4 77. Is it better to use the onboard 12V battery or add a second 12V lithium battery to do the job? The fridge draws about 3-4 amps when running. My concerns are running the onboard 12V battery down too low, that the car won't start, or...

I had an incident on Sunday when the dash came up with warnings about the 12V battery voltage being low (around 11.3V initially), and telling me to pull over. I wasn’t far from home, so headed back, but the battery voltage eventually went into free fall, then the whole car died. Recovered the...

Hi everyone, I need to replace the 12V battery in my 2019 MG ZS EV but no one seems to know which type I need, can anyone help out, please? Am I right in thinking this one will work? (AGM027)...

Hi All, My 12V battery is dead and I can't start anything on the car. I got in with the key. Is there a way to open the charging cap so I can connect the car to my charger? The car's main battery has %70 charge and I used the car 2 days a go.

So, a week before Xmas my mg5 mk1 died showing HV errors etc and the 12V battery was showing at 11.7V. No amount of jumpstarting etc would bring the car back to life. The AA dragged it off to the dealer and after they've replaced the 12V battery everything appears to be working again. When...

So yesterday my MG5 got carted off to the dealership on the back of an AA van for what appears to be a fault with the charging of the 12v battery. My 21 plate ZS has the 12v battery gauge on dash and that's currently showing just over half full - what are people's experiences with this gauge...

Hello all. So, I have read a couple of threads on this forum but can't seem to find the resolution I need. I left my lights on my mk1 MG ZS EV overnight and the 12v battery is completely dead. I have a full sized booster (the 8in1 type from Halfords) which I have tried to use. I got into my...

I see most people use this 12 V on non EV. But this is what the the dealer recommended. The size is correct, but can anyone tell if this is suitable for the MG4? https://www.tayna.co.uk/car-batteries/exide/ea472/reviews/

Just inflated tyres as the sensor suggested they were too low. Inflated fine using normal car inflator plugged into the 12v cigarette light socket. But bizarrely now i cant pull the plug from the socket. I've given it a good yank but don't wanna try pulling much harder as it feels locked in...

Before I measure it properly etc. myself just wondering if anyone knows for sure the correct battery type or size for a Trophy? Cheers

Hello, I’ve had my mg4 SR for 3 months nearly. I was quite poorly the last two days so never went outside to my car. Today I tried to open my car with the fob to no response. I tried the manual key entry but that didn’t work either. I assume the 12v battery died - my question is how do I now...

Hi all, I want to share an ongoing issue with my MG4 standard range. The car is currently sitting in my driveway, dead as hell. I called the AA and they confirmed on visit the 12v battery is borked and is not taking any charge. The car will be towed to the garage either today or tomorrow. So...

Hi guys, Seen a few posts about 12V batteries... I've had issues since delivery. 12V died so was rescued AA, however jumping it didn't work. As a result they recovered to a garage, they replaced the 12V and sent me on my way. Called AA again last week as was dead on drive... they jumped and...

Have you swapped the original 12v battery for another manufacturer? What did you choose?

I want another 12v battery in my garage, but quality manufacturers like Varta and Bosch obviously doesn't have it. Is the only option another battery from MG itself, or are there alternatives?

Has anyone had to use this booster or any other in anger and did it work as expected? We all think we know the theory of how to use them on a EV but does that match the actuality. Scenario, you get back to the car and its dead, you had the foresight to buy said item, so dismantle the key ring...

I want another battery in standby, but do I have to order it original? Unlike old cars, there are no avaliable third party batteries when I check other stores. And if no third party avaliable, how much will a new, original cost?

After a 7day holiday, return to Gatwick Long Stay South car park to pick up our MG4. Eventually find car which isn't responding to the fob to show me where she is. Doors - don't open! Call to the AA - 2hrs atleast! I can't open the drivers door with the emergency key so go and guard our luggage...

If I disconnevt the -ve on the battery, do you lose settings like radio and preferences when the supply is reconnected?