Mg Battery Replacement - We Come to You
Mobile battery supply & installation at your home, work or roadside across Sydney
Batteries for MG ZS (2017–present), MG4 (2022–present) & other models – performance-grade AGM/EFB for smart alternators, professionally installed wherever you are.
1800 79 79 77
Get the Best Deal on MG
Batteries with Auto Hero
MG
Battery Experts
Up to 3 Years
Battery Warranty
24 Month
Workmanship Cover
Mobile Service
We Come To You
Modern MGs integrate connected infotainment systems, start-stop efficiency, and hybrid or electric powertrains that demand perfectly balanced energy delivery. Auto Hero installs Stop/Start, EFB, AGM, and Calcium batteries designed for all MG models — including MG3, MG4 EV, MG5, ZS, HS, and MG ZST — providing smooth performance, reliable starting power, and long-lasting dependability across both petrol and electric platforms.
Auto Hero — trusted by MG owners for expert mobile battery replacement, correct specification batteries and long battery life.
Contact us now for amazing fast service and a competitive quote!
We supply batteries for all
MG makes and models
MG3
ZS
HS
ZS EV
MG4
5 SIGNS YOUR MG
battery is dying
What are MG-specific signs of a weak battery?
MG vehicles often show battery issues through slow starting, warning lights on the dash, or electrical features not responding correctly. In MG EVs, these symptoms usually relate to the 12V battery, not the main drive battery.
Can a weak battery affect remote entry or electronics in a MG?
Yes. A weak battery can reduce key range and cause infotainment delays, screen glitches, or intermittent electronic faults, especially during startup or after the car has been parked.
Why does my MG crank slowly with a weak battery?
In petrol MGs, slow cranking occurs when the battery can’t supply enough current to the starter motor. In MG EVs, a weak 12V battery can prevent the vehicle from waking or powering on at all.
Are there any MG-specific issues when replacing the battery?
Using the correct battery type and specification is important, particularly for models with stop-start or EV systems. Incorrect batteries can trigger warning messages or ongoing electrical issues.
What if I only hear clicking when I start my MG?
This usually indicates low battery voltage rather than a fault. The warnings may clear once driving, but they’re a sign the battery is weakening and should be tested or replaced soon.
MG Battery
Replacement Experts
Car Batteries Supplied, Installed & Registered to Your MG’s Computer
Auto Hero supplies and installs premium AGM, EFB, and calcium-cell batteries for a wide range of MG vehicles — including top models like the MG3, MG ZS, MG HS, and the electric MG4 EV — with batteries available for all MG models.
MG systems demand high-capacity batteries for stable power, even with the engine off.
Modern MG vehicles — especially their rapidly expanding EV and plug-in hybrid lineup — require battery solutions tailored for both petrol and high-voltage platforms. For combustion models, we provide AGM and EFB batteries optimised for start/stop systems and advanced driver aids. For the MG4 EV and MG ZS EV, we also supply lithium and AGM 12V auxiliary batteries, which keep safety, lighting, and infotainment powered when the main traction battery is idle.
Our mobile service includes full ECU coding and BMS resets where required, ensuring your MG’s smart charging system communicates with the new battery from the first start. This helps prevent overcharging, maintains battery health, and ensures optimal performance for both daily driving and long storage periods.
Pro Tip:
Many MG models use tight under-bonnet battery compartments to save space and weight. Correct sizing is essential to ensure a perfect fit without stressing cables or connectors — and our technicians always confirm manufacturer specifications before installation.
All MG battery installations come with up to a 3-year battery warranty and 24 months workmanship cover. We fit your battery at your home, office, or roadside — giving you the same level of service you’d expect from a dealer, without the wait or inflated price.
Book your MG
battery service today
Call 1800 79 79 77.
We come to you.
Why Choose Us?
Rapid
Response
On the job within an hour. Any vehicle, location, time.
Unbeatable
Prices
Competitive vehicle battery prices or 11% OFF
Up to 3 Years
Warranty
Nation wide warranty for genuine, well-known brands.
24/7 Service
Sydney Wide
All day, every day, all across Sydney.
Over 3,150+ Online reviews
Had a flat tyre and Matt came to the rescue. Quick call out, super friendly and he had it changed in no time. Top bloke and great service, would definitely recommend Auto Hero!
Matt went above and beyond to help navigate a difficult problem. Highly recommend to anyone needing auto service.
I really appreciate Matt’s help! He responded quickly and arrived right on time, even on short notice and in Sydney’s heavy rain. My car wasn’t starting and he helped me with a jump start straight away. Reliable, friendly, and professional. I’d definitely recommend him for any job
The service was prompt and reasonably priced. I highly recommend it!
Matt was such a nice and friendly with us and kept professionalism. We had issue with our car window which Matt explained and fixed it within few minutes. The whole process from start to finish was well explained and executive. I strongly suggest to have your car issues solved out with Matt from Auto Hero. Thank you for the service.
Matt was very helpful and efficient, replace the battery of my car in no time even explain the condition of my car for me in detail so i know what to expect and how can i take care of it better. Highly Recommended, all the best
Matt did a wonderful job repairing my tyre. From the very beginning, he had such a nice approach over the phone, answered quickly, and was very responsive. He arrived exactly at the time he said he would and fixed the tyre perfectly. Great service, reliable and professional. I highly recommend him!
Matt drove all the way out to us in Gledswood Hills and was so quick and efficient. He was beyond kind and great at what he does. Could not recommend more.
Matt was so efficient, so cost effective (a good $200 cheaper than every other quote to fix my car's side mirror), so communicative, and also just such a great guy. Even offered to give us some money back because it took less time than he thought it would. Cannot recommend him enough!
Was stranded on the road, called auto hero and in half an hour they came to check if everything was okay, helped me with my tires and also educated me on wheel alignment. Definitely will recommend them highly!??
Loved it:) The process was simple, easy and fun. Will definitely be using this service again.
Big big big thanks to Matt, I had large metal object in my tyre being a new wanted to ensure I had a professional change and inspect my tyre little did I know how easy and fast Matt was ensuring I was safe and he was on the way excellent job very great price not only did change my tyre but ensured my others were good and safe to drive , 10/10 definitely recommend giving Matt a call
MG
BATTERY FAQ’s
What battery suits my MG (MG3, MG5, ZS, ZST, HS, MG4 EV, MG ZS EV, etc.)?
We confirm the exact 12-volt battery required for your MG based on the model, year, and engine or EV system. Many MG petrol models use EFB or AGM batteries for Start/Stop systems. MG hybrid and EV models (like MG4 EV and ZS EV) use a dedicated 12-volt auxiliary battery alongside the high-voltage traction pack.
Can Auto Hero install my MG battery at home, work, or roadside?
Yes. Our mobile service covers all Sydney suburbs. We install 12-volt batteries for all MG hatchbacks, sedans, SUVs, hybrids, and EVs.
Does my MG require battery registration, coding, or a BMS reset?
Some MG models with Start/Stop or smart charging systems may require a BMS reset after battery replacement. MG EV models may require basic 12-volt system initialisation. Not all models require coding — we confirm based on your exact model and year.
Can you test the charging system to see if it is OK?
Yes. We can test alternator performance, voltage stability, and wiring to determine whether a fault caused the battery to drain — for an additional cost. For MG EV and hybrid models, we also test the DC-DC converter that charges the 12-volt system.
Do you test the battery before replacing it?
Yes. We offer a complete 12-volt battery health check and charging-system test to confirm whether the issue is the battery, alternator, DC-DC converter, or wiring — for an additional cost.
How long does installation take?
Most MG battery replacements take 15–60 minutes depending on battery location, access requirements, and whether a BMS reset is needed.
What warranty do Auto Hero batteries come with?
All batteries include a minimum 24-month warranty. Many premium AGM or EFB batteries offer up to 3 years with an extended-warranty upgrade.
Can Auto Hero handle complex battery locations in MG models?
Yes. Some MG models — especially EVs and hybrids — have batteries located behind panels, under covers, or near high-voltage components. Our technicians are trained to safely access and replace these units.
What payment methods do you accept?
We accept EFTPOS, debit and credit cards, secure online payments, and tap-and-go. Buy Now Pay Later options such as Afterpay and Zip Pay are also available for eligible customers.
Do you remove and recycle the old battery?
Yes. We remove and recycle every battery we replace at no extra cost.
CONTACT US
If you need our service immediately, please call us on 1800 79 79 77 or leave a message and we will get back to you ASAP.
BURN RUBBER,
NOT CASH.
Call Auto Hero today.
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