Aion V

[DOBIEMKZ]

I was curious about the Aion V's torquey drive but mediocre (on paper) top-speed if it is due to its blunt cross-section:-

Aion V's transmission/ reduction gear.

The GAC Aion V utilizes a relatively short single-speed reduction gear setup compared to many other mainstream EVs. Depending on the specific motor variant and platform generation, the official technical parameters state that the reduction gear ratio is:

11.557:1 (found on standard or high-efficiency motor setups)

13.273:1 (found on specific high-torque or alternative configurations)

Why is this ratio so unique?

As discussed earlier, most typical mainstream electric cars use a reduction ratio between 7:1 and 10:1. The Aion V's significantly shorter ratio (meaning the motor spins more than 11 to 13 times for every 1 full turn of the wheels) is a deliberate engineering choice that directly explains its real-world driving behavior:

The "Phantom" Torque Effect: Reviewers and drivers frequently note that the Aion V feels much punchier from a dead stop than its official spec sheet suggests. Because a ratio of over 11:1 dramatically multiplies the twisting force passing from the motor to the wheels, it gives the car exceptionally eager, responsive acceleration at city speeds.

Top Speed Trade-off: By opting for such a high reduction ratio to prioritize low-end family-carrying grunt, the top end is sacrificed. The motor spins closer to its physical maximum RPM at standard highway speeds, which is why the Aion V features a electronically limited top speed of 160 km/h—perfectly sufficient for Singapore and standard regional highways, but mathematically capped by its reduction gear.


Aion V's top-speed capping.

Yes, the top speed of 160 km/h on the GAC Aion V is electronically limited.

In fact, almost all electric passenger cars under the 250 hp mark have their top speeds strictly capped via the car's engine control software. In the Aion V, this 160 km/h limit exists as a deliberate digital barrier for two main reasons:

1. Thermal Management and Efficiency

Electric motors consume massive amounts of battery juice when spinning at sustained high speeds. Unlike a petrol car that shifts into a high gear to lower its RPM on the highway, the Aion V’s single-speed reduction gear means its motor has to spin exponentially faster the quicker you go.

If GAC allowed the car to push past 160 km/h, the current draw from the battery would skyrocket, creating two massive headaches:

Severe Range Drop: Your driving range would plummet drastically.

Overheating: The rapid electrical discharge would generate immense heat in both the battery pack and the inverter, forcing the car’s cooling system to work overtime and eventually triggering a protective "limp mode."

2. The Physical Mechanical Ceiling

As mentioned earlier, the Aion V uses an aggressively short reduction gear ratio (exceeding 11:1 or 13:1 depending on the specific model trim).

Mathematically, at 160 km/h, the Aion V's electric motor is already screaming along near its peak efficient operational ceiling (typically between 12,000 and 15,000 RPM depending on the generation of the e-axle). GAC places the electronic limiter right at 160 km/h to prevent the motor from over-spinning into an RPM zone where it loses all of its efficiency and structural safety tolerances.

For driving environments like Singapore, where the absolute legal limit is 90 km/h on expressways like the PIE or TPE, this 160 km/h digital cap gives you more than enough headroom while keeping the powertrain perfectly safe and highly efficient.

[Ake109]

On 6/25/2026 at 11:58 AM, DOBIEMKZ said:

I was curious about the Aion V's torquey drive but mediocre (on paper) top-speed if it is due to its blunt cross-section:-

Aion V's transmission/ reduction gear.

 

Thats why I always say, looking at the torque figures for EV is quite useless. More so than petrol/diesel cars.

We need to know the gearbox ratios _and_ the motors rpm limit (the latest go up to 30k, which is double the early gen EVs). The torque curve vs rpm of an EV motor, I have no idea.

[Mkl22]

On 6/2/2026 at 6:27 PM, DOBIEMKZ said:

Buy some seatbelt buckle clips/extenders and plug them in so that the system will think that seatbelt is put on.

Stay away from me. Don’t want to have you flying out and into my car. 

[Nisse]

On 6/8/2026 at 10:17 AM, Victor68 said:

I wonder other aion v owners experience the same. Most times, you walk away about 5-8 steps from the car, it auto locked. There are occasions you are more than 10 ft away before it kicks in  but there are few occasions the auto lock didn't kicks in. I manually use the remote to lock it.

When I return, it works normal. I am not sure if I have left it and continue to walk away, it would eventually lock itself. Being in a public place, I decided it is safer to lock it. 

I notice that the auto lock won't work when I have a lot other stuffs in my pocket together with the key. Maybe the signal is being blocked or the battery in car key is weak and needs replacement.

[Nisse]

On 6/22/2026 at 11:22 PM, TVaddict said:

Did my first road trip with the Aion V. Drove up to Melaka with wifey and kids for 5 nights and just got back yesterday.

Overall it's a nice trip and drive but just to share a few interesting points with fellow Aion V drivers for reference. 

1) I used the DC fast charger at my hotel to charge my car fully with no issue. However I tried the AC charger the next day and after 5 min the charging stopped by itself despite the car is not fully charged yet.

I tried to end the charging through the EV operator App (EVlution) but can't. 

I tried to use the Aion App to unlock the charging gun but apparently it couldn't work this time. The App was also hung.

I noticed my phone was having 4G network while the car was alternating between 2G and no network. 

In the end I had to open up the bonnet and pull the emergency cable to release the charging gun.

On the EVlution App, my car has been charging for 4 days already now and is still counting. Lol.. I have emailed EVlution but they have not reply yet.

(Saw an earlier post that we can unlock the charging gun by quick pressing the unlock button 2 to 3 times on our key. Didn't know about this until now. Anyone knows does it really works?) 

2) The emergency anti-collision assistance kicked in for the first time when some jay walkers got too close to my car while I was driving on a small road.

This really shocked and irritated me because the auto braking was really heavy which caused my car to jerk hard and almost came to a stop in the middle of the road. My kids and wife are seated behind. Luckily there were no tailgating cars behind.

What irks me is this and other 'safety' features cannot be switched off permanently. Sometimes these 'safety' features might cause more danger to the user instead.

 

Other than the above two points, I must say the car served us well. The suspension and sound proofing really shine in this road trip. I'm on the stock Maxis tyres too. 

Last but not least, I look forward to more sharing by fellow users. Cheers! 

Press twice on the open boot button will unlock the charging gun after you finished charging. Your SE should have told you, that's what mine did. The app won't work outside Singapore the sim card installed inside by Vincar doesn't support overseas roaming I think.

I did my first KL trip in V also in June. The drive is very comfy but I find the maxxis tire a little noisy when traveling above 110km/hr. Also, one full charge is enough to reach KL although it's not efficient when driving over 100km/hr continuously. However, on my return leg, I have to recharge at Skudai R&R as I was caught in a 3-hr standstill traffic due to a tragic accident. Only got 70km worth of charge left when I reach Skudai R&R. It was also a very hot day so aircon was running cold throughout as well as the freezer as I bought 2 tubs of ice-cream lol.

[Ake109]

On 7/2/2026 at 12:15 AM, Nisse said:

ndstill traffic due to a tragic accident. Only got 70km worth of charge left when I reach Skudai R&R. It was also a very hot day so aircon was running cold throughout as well as the freezer as I bought 2 tubs of ice-cream lol.

The cooler box is cold enough in practice to stop ice cream from softening after a couple hours?

[DOBIEMKZ]

On 7/3/2026 at 7:13 PM, Ake109 said:

The cooler box is cold enough in practice to stop ice cream from softening after a couple hours?

It can be set to freezer mode, down to min -15 degrees Celsius.

[Nisse]

On 7/3/2026 at 7:13 PM, Ake109 said:

The cooler box is cold enough in practice to stop ice cream from softening after a couple hours?

I transfer the ice cream to my fridge after reaching home so I didn't open up to see if it had already softened but the ice cream tubs felt hard frozen from the outside still. 

[Ake109]

On 7/4/2026 at 7:38 AM, DOBIEMKZ said:

It can be set to freezer mode, down to min -15 degrees Celsius.

Nice.

[steveting99]

Over in the mainland, there's a brewing issue on battery safety from one of GAC's suppliers - China Aviation Lithium Battery (CALB).

According to Jiemian news article here:  https://www.jiemian.com/article/14798449.html, a large number of GAC Aion S owners (the export version here in Singapore is the Aion ES) are reporting severe battery issues, including swelling, leakage, and cell ruptures. This has resulted in power failure of the vehicle while driving.  The issues are concentrated in Aion S vehicles that have travelled between 150,000 km and 300,000 km. 

Data from consumer complaint platforms, including 12365auto and Black Cat, shows 182 complaints in just half a month, with a fault detection rate of 4.7% across a scale of approximately 213k vehicles. This is a very high number of battery defects. The problem has been traced back to a specific component - the 177Ah lithium iron phosphate (LFP) battery cell supplied by CALB.

Some industry experts have suggested to Jiemian news that these are not isolated incidents but point to systemic manufacturing defects by CALB. Potential issues could be improper electrolyte system design, substandard assembly precision, and a lack of rigorous ageing test verification.

CALB is the 4th largest battery supplier in China. 

Data source: https://cnevpost.com/2026/07/18/calb-in-spotlight-gac-aion-s-battery-cell-defects/

Edited Tuesday at 02:12 AM by steveting99
additional text

[Nisse]

On 7/21/2026 at 10:09 AM, steveting99 said:

Over in the mainland, there's a brewing issue on battery safety from one of GAC's suppliers - China Aviation Lithium Battery (CALB).

According to Jiemian news article here:  https://www.jiemian.com/article/14798449.html, a large number of GAC Aion S owners (the export version here in Singapore is the Aion ES) are reporting severe battery issues, including swelling, leakage, and cell ruptures. This has resulted in power failure of the vehicle while driving.  The issues are concentrated in Aion S vehicles that have travelled between 150,000 km and 300,000 km. 

Data from consumer complaint platforms, including 12365auto and Black Cat, shows 182 complaints in just half a month, with a fault detection rate of 4.7% across a scale of approximately 213k vehicles. This is a very high number of battery defects. The problem has been traced back to a specific component - the 177Ah lithium iron phosphate (LFP) battery cell supplied by CALB.

Some industry experts have suggested to Jiemian news that these are not isolated incidents but point to systemic manufacturing defects by CALB. Potential issues could be improper electrolyte system design, substandard assembly precision, and a lack of rigorous ageing test verification.

CALB is the 4th largest battery supplier in China. 

Data source: https://cnevpost.com/2026/07/18/calb-in-spotlight-gac-aion-s-battery-cell-defects/

AION V Luxury here is supplied with 214Ah LFP battery from CALB, not the 177Ah one. Vincar also provides 10years/200,000km battery warranty so I think most of us owners should be quite alright except for folks that drive over 20,000km a year. Also, the article stated both GAC and CALB have taken ownership of the problem and proactively working to address the issue with the car owners.