MG4 trophy 12V battery

[pecker]

Advice needed please.

Anyone clued up on 12V batteries? I’d like to replace the standard 12V battery with a better spec & larger capacity battery.

I keep reading about so many issues that seem to be down to the standard 12V battery and would like to avoid such issues

Thanks

 

[Ian Key]

Advice needed please.

Anyone clued up on 12v batteries? I’d like to replace the standard 12v battery with a better spec & larger capacity battery.

I keep reading about so many issues that seem to be down to the standard12v battery and would like to avoid such issues

Thanks

Their are two main problems that could occur with the OEM battery and both are fixable.

The first one, particularly with the fist batches of cars, was that the battery terminals weren't tightened during the PDI checks.

The second one is the 12v battery wasn't being charged by the main traction battery unless the car was either being charged or driven. This is fixed with a software update.

Just to put it into some kind of context. I have one of the early MG4s and haven't had either of these problems and regularly see the 12v battery voltage showing 14v+ on the app so I know it's getting charged even when it hasn't been used for a couple of days.

If you still want to change your battery for peace of mind of the two listed on Halfords website as suitable I'd go for the Yuasa.

https://www.halfords.com/motoring/batteries/car-batteries/?isVrnSearch=true

 

[pecker]

Their are two main problems that could occur with the OEM battery and both are fixable.

The first one, particularly with the fist batches of cars, was that the battery terminals weren't tightened during the PDI checks.

The second one is the 12v battery wasn't being charged by the main traction battery unless the car was either being charged or driven. This is fixed with a software update.

Just to put it into some kind of context. I have one of the early MG4s and haven't had either of these problems and regularly see the 12v battery voltage showing 14v+ on the app so I know it's getting charged even when it hasn't been used for a couple of days.

If you still want to change your battery for peace of mind of the two listed on Halfords website as suitable I'd go for the Yuasa.

https://www.halfords.com/motoring/batteries/car-batteries/?isVrnSearch=true

Thank you, that’s reassuring & helpful

 

[kelloggs]

Just for further reassurance I’ve had my trophy since nov 22, parked it for up to 24 days on occasions and have had no issues with the 12v battery at all. As Ian says, check the terminals, get those updates and enjoy the car .

 

[Grriff]

There has been previous discussion on this topic. 12v battery. Since the battery is not needed to turn an engine the use of leisure batteries was also considered as an option.

 

[Kithmo]

FWIW, changing the battery for a different one won't prevent it going flat in the event of either of the problems mentioned by @Ian Key above.
You're better off spending the money on a 12V booster pack just in case and keep it in the glove box as it's easier to access than the boot if the 12V is flat.

 

[pecker]

I just feel the quality of the MG4 factory battery is poor and I'd like to replace it for a quality well made and larger capacity battery

Does anyone know the capacity of the factory fitted MG4 battery ?

Their are two main problems that could occur with the OEM battery and both are fixable.

The first one, particularly with the fist batches of cars, was that the battery terminals weren't tightened during the PDI checks.

The second one is the 12v battery wasn't being charged by the main traction battery unless the car was either being charged or driven. This is fixed with a software update.

Just to put it into some kind of context. I have one of the early MG4s and haven't had either of these problems and regularly see the 12v battery voltage showing 14v+ on the app so I know it's getting charged even when it hasn't been used for a couple of days.

If you still want to change your battery for peace of mind of the two listed on Halfords website as suitable I'd go for the Yuasa.

https://www.halfords.com/motoring/batteries/car-batteries/?isVrnSearch=true

I was hoping to find a Bosch battery but no luck, are the Yuasa ones any good ?

The only batteries I've found that are a match

Does anyone know the capacity for the factory battery ?

EA472 Exide Premium Car Battery 063TE

EA472 Exide Premium Car Battery 063TE Exide are one of the leading battery manufacturers companies in the world and have been delivering quality in the automotive and infrastructure sectors for more than 130 years! Exide EA472 premium car batteries are Exide's leading wet lead acid battery...

www.tayna.co.uk

Yuasa HSB012 Silver 12V Car Battery 5 Year Guarantee | Halfords UK

Shop the latest Yuasa 5 Year Guarantee HSB012 Silver 12V Car Battery at Halfords UK

www.halfords.com

Halfords HCB012 Calcium 12V Car Battery 4 Year Guarantee | Halfords UK

Shop the latest Halfords 4 Year Guarantee HCB012 Calcium 12V Car Battery at Halfords UK

www.halfords.com

If anyone has any other options do let me know

Thank you

 

[Grriff]

If you are going to change the battery, consider a leisure one. More expensive but possibly better suited. Check out the other threads.

 

[pecker]

If you are going to change the battery, consider a leisure one. More expensive but possibly better suited. Check out the other threads.

I've tried searching but I couldn't find anything with recommendations

I've found the following Leisure batteries that appear to fit, however I'm not sure on the different types of batteries, AGM, Wet, EFB

Nothing is straight forward lol

LED60 Varta Professional Dual Purpose EFB Leisure Battery 60Ah (930060068)

LED60 VARTA Professional Dual Purpose EFB Leisure Battery <i>Innovation with Purpose, Premium Experience, Powerful History</i> VARTA was founded in 1887 Germany, and was established fully in 1904 by delivering the first electric vehicle battery, famously driven by Thomas Edison. Soon after...

www.tayna.co.uk

LA60 Varta Professional Dual Purpose AGM Leisure Battery 840 060 068

LA60 VARTA Professional Dual Purpose AGM Leisure Battery <i>Innovation with Purpose, Premium Experience, Powerful History</i> VARTA was founded in 1887 Germany, and was established fully in 1904 by delivering the first electric vehicle battery, famously driven by Thomas Edison. Soon after, VARTA...

www.tayna.co.uk

L5005 Bosch Leisure Battery 12V 60Ah L5 005

L5005 Bosch Leisure Battery 12V L5 005 Bosch Group are one of the leading battery manufacturer companies in the world and have been delivering quality German engineering in the automotive industry for more than 100 years! Bosch is a world renown company name that have and still are leading the...

www.tayna.co.uk

 

[Grriff]

I'd give Tayna a call and ask them.

 

[spence7788]

I just feel the quality of the MG4 factory battery is poor and I'd like to replace it for a quality well made and larger capacity battery

Does anyone know the capacity of the factory fitted MG4 battery ?



I was hoping to find a Bosch battery but no luck, are the Yuasa ones any good ?

The only batteries I've found that are a match

Does anyone know the capacity for the factory battery ?

I had a quick Look a while ago as although I’ve never had a problem in 65k for the sake of £40/ £50 or so & on other EV’s I’ve had the 12v is pretty much a consumable, I just haven’t got around to it yet.

It’s definitely a size 063 45ah SAIC branded battery (probably pretty budget and poor), can’t remember the CCA but obviously that’s not important, there is space to fit a larger battery but imo not worth the effort or extra weight, I’d just change it more often if your worried .

 

[Kithmo]

If it ain't broke, don't fix it.

 

[pecker]

If it ain't broke, don't fix it.

Yeah, you're right. My previous ID.3 had 12v battery issues so I wanted to replace the SAIC one with a leisure battery, however that's a minefield as well.

 

[Lovemyev]

@pecker have you considered buying a 12 volt booster pack to leave in the car, just in case you have a flat battery ?.

 

[Kithmo]

@pecker have you considered buying a 12 volt booster pack to leave in the car, just in case you have a flat battery ?.

That's what I said and it's cheaper than a new battery.

 

[pecker]

@pecker have you considered buying a 12 volt booster pack to leave in the car, just in case you have a flat battery ?.

I've just ordered one on Amazon not 5 minutes ago

 

[Morleym]

Their are two main problems that could occur with the OEM battery and both are fixable.

The first one, particularly with the fist batches of cars, was that the battery terminals weren't tightened during the PDI checks.

The second one is the 12v battery wasn't being charged by the main traction battery unless the car was either being charged or driven. This is fixed with a software update.

Just to put it into some kind of context. I have one of the early MG4s and haven't had either of these problems and regularly see the 12v battery voltage showing 14v+ on the app so I know it's getting charged even when it hasn't been used for a couple of days.

If you still want to change your battery for peace of mind of the two listed on Halfords website as suitable I'd go for the Yuasa.

https://www.halfords.com/motoring/batteries/car-batteries/?isVrnSearch=true

My 12 volt battery shows about 12.5 volts when the car is switched off. This rises to 14 volts plus when the vehicle has been driven for a short while. I don't believe the battery is being charged whilst the car is switched off and can therefore slowly discharge because various sensors are active even when the car is off. I regularly go away for four weeks at a time and before I do I connect a trickle charger to the 12 volt battery this ensures that the battery remains in a good usable condition. The other option as somebody has already mentioned is to purchase a booster and keep it in the glove compartment where it is easily accessible.

 

[Joningy]

Did our first longish term parking at Gatwick for 25 days in cold January into February, I had similar trepidation as many others, but all was fine on our return.
Got another airport trip coming up with no fears, stopping off to charge the traction battery ready for the return journey home.

 

[peekeje]

My 12 volt battery shows about 12.5 volts when the car is switched off. This rises to 14 volts plus when the vehicle has been driven for a short while. I don't believe the battery is being charged whilst the car is switched off and can therefore slowly discharge because various sensors are active even when the car is off. I regularly go away for four weeks at a time and before I do I connect a trickle charger to the 12 volt battery this ensures that the battery remains in a good usable condition. The other option as somebody has already mentioned is to purchase a booster and keep it in the glove compartment where it is easily accessible.

Hi.

How do you charge the 12V battery directly? Using what and which point.

 

[Ian Key]

My 12 volt battery shows about 12.5 volts when the car is switched off. This rises to 14 volts plus when the vehicle has been driven for a short while. I don't believe the battery is being charged whilst the car is switched off and can therefore slowly discharge because various sensors are active even when the car is off. I regularly go away for four weeks at a time and before I do I connect a trickle charger to the 12 volt battery this ensures that the battery remains in a good usable condition. The other option as somebody has already mentioned is to purchase a booster and keep it in the glove compartment where it is easily accessible.

The main traction battery recharges the 12v battery when needed even if the car is switched off. See my post #8 in

That good ol' keeping the 12V battery perky thread repeat.

Had the squeaky bum moment this morning with the 12V battery showing 12.2 after just 6 days of ownership. Due to trying to be proactive and not end up with windows inadvertently being left down when I'm not with the car, I'd got into the habit of using the power off button in safety to totally...

www.mgevs.com