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Adsony Auto Pro, Plot JKL Block 2 Ilupeju Industrial Estate, Beside N C I E Compound, Mosafejo Oshodi, Lagos (2026)

16/08/2026

🔋 THE 12V BATTERY IN AN EV: SMALL BATTERY, BIG RESPONSIBILITY

An EV can have a large high-voltage battery capable of powering the traction motor.

So why does it still need a 12V battery?

Because the high-voltage battery isn’t responsible for everything.

The 12V system powers many of the vehicle’s everyday electrical and control functions, including:

🔑 Vehicle access and locking
💡 Lighting
🖥️ Control modules
🚨 Safety systems
📡 Communication networks
🧠 Vehicle electronics

When the vehicle is switched on, the 12V system also plays an important role in allowing the vehicle’s control systems to establish the conditions required for the high-voltage system to become active.

And here’s the interesting part:

A vehicle can have a perfectly healthy high-voltage battery…

and still refuse to start because of a weak 12V battery.

This is one reason EV diagnostics cannot focus only on the high-voltage battery.

Technicians need to understand the relationship between:

12V system → Control modules → High-voltage system → Traction system

For EV owners, a simple lesson is:

Don’t ignore the small battery just because the vehicle has a much larger one.

A healthy 12V system is part of a healthy EV.

As EV adoption grows, understanding these supporting systems will become just as important as understanding the main traction battery.

Have you ever wondered why an EV with a large battery can still have a “dead battery” problem?

15/08/2026

🚗 EV Payload: How Much Does Passenger and Cargo Weight Affect Range?

We often talk about battery capacity, charging and driving speed when discussing EV range.

But there is another factor that is easy to overlook:

What are you carrying?

Every passenger, suitcase, package or piece of equipment adds weight that the electric motor has to move.

For a private EV, the difference may be small.

For an EV taxi, logistics vehicle or fleet, it can become much more significant because the vehicle may operate with different loads throughout the day.

Think about it this way:

More payload → more mass → more energy required to accelerate.

But payload isn’t the only consideration.

Tyre pressure, road conditions, driving style, speed, gradients and aerodynamic drag can all influence the final energy consumption.

That means an EV’s advertised range should never be viewed as a fixed number.

The better question is:

“What range can this vehicle realistically deliver with the load and conditions it will face every day?”

For Nigeria’s growing EV market, this is particularly important.

A vehicle used for:

🏙️ Ride-hailing
📦 Logistics
👨‍👩‍👧‍👦 Family transportation
🏢 Corporate fleets

may have very different energy requirements.

The right EV isn’t simply the one with the biggest battery.

It is the one that matches the job, payload and operating environment.

14/08/2026

EV Ground Clearance: Why Nigerian Roads Matter

A battery-powered vehicle isn’t only about battery capacity and range.

For Nigeria, ground clearance, underbody protection and road conditions are important considerations when choosing an EV.

A low-mounted battery pack sits underneath the vehicle, so drivers need to pay attention to:

* Speed bumps
* Potholes
* Flooded roads
* Uneven surfaces
* Steep ramps
* Underbody impact

The interesting part is that EVs can actually have a lower centre of gravity because the battery sits low in the vehicle.

That can improve stability and handling.

But it also means the vehicle’s underbody and battery protection become critical.

The EV question isn’t just:

“How far can it go?”

For Nigerian conditions, we should also ask:

“Can it handle the roads where it will actually operate?”

This is especially important for EV fleets, because the best vehicle isn’t necessarily the one with the longest advertised range.

It’s the one that matches the road, climate, payload and operating environment.

Range matters.
But suitability matters too.

13/08/2026

⚖️ EV Weight: Does a Heavier Electric Vehicle Really Consume More Energy?

One of the biggest differences people notice when comparing an EV with a petrol vehicle is weight.

But does a heavier EV automatically mean poor efficiency?

Not necessarily.

An EV’s energy consumption is influenced by several factors:

🔋 Battery size and chemistry
A larger battery can add weight, but it also provides greater usable energy.

🚗 Vehicle design
Aerodynamics, drivetrain efficiency and body design can sometimes offset additional weight.

⚡ Electric motor efficiency
Modern electric motors can convert a large proportion of electrical energy into useful motion.

🛞 Tyres
As we discussed in yesterday’s post, rolling resistance and tyre selection have a direct effect on energy consumption.

🏙️ Driving conditions
Stop-and-go traffic, hills, speed and acceleration can all change how much energy the vehicle uses.

But here is the interesting part:

Weight matters most during acceleration.

Every time an EV accelerates, energy is required to move its mass.

However, once the vehicle is cruising at a steady speed, other factors—particularly aerodynamic drag and rolling resistance—can become much more significant.

This is why simply saying:

“EVs are heavy, therefore they consume a lot of energy”

doesn’t tell the whole story.

For fleet operators, the better question is:

How efficiently does the entire vehicle convert stored battery energy into kilometres of useful transportation?

That is where EV efficiency becomes an engineering question—not simply a battery-size question.

For Nigeria, this matters because choosing the right EV for fleet operations should involve looking at:

Vehicle weight + battery capacity + real-world range + payload + road conditions + energy consumption.

The best EV isn’t necessarily the one with the biggest battery.

It is the one that delivers the right amount of useful mobility for the job it is expected to perform.

What do you think matters more for an EV fleet: battery size or overall vehicle efficiency?

12/08/2026

🚗 EV Tyres: The Smallest Part of the EV That Can Affect Range, Safety and Performance

When people discuss EV efficiency, the conversation usually goes straight to the battery.

But there is another component constantly interacting with the road:

The tyre.

An EV can have a highly efficient battery and motor, but the wrong tyre pressure, excessive rolling resistance or poor tyre condition can still affect how efficiently that energy reaches the road.

Why are tyres particularly important on an EV?

⚡ Instant torque

Electric motors can deliver strong torque immediately. That puts greater emphasis on tyre grip and traction.

🔋 Rolling resistance

A tyre that requires more energy to roll can increase the energy consumed per kilometre.

📏 Tyre pressure

Under-inflation increases rolling resistance and can also affect handling, braking and tyre wear.

⚖️ Vehicle weight

EVs can be heavier because of their high-voltage battery packs, making correct tyre specification even more important.

🌧️ Road conditions

Rain, poor surfaces and high temperatures can significantly influence tyre grip and energy efficiency.

So what should an EV owner pay attention to?

Don’t simply ask:

“What tyre fits this car?”

Also ask:

“Is this tyre appropriate for the vehicle’s weight, load, speed rating, driving conditions and efficiency requirements?”

For fleet operators, this becomes even more important.

A small difference in energy consumption per kilometre can become a significant operational cost when multiplied across hundreds or thousands of kilometres.

EV efficiency isn’t created by the battery alone.

It is the result of the entire vehicle working efficiently—from the battery all the way to the road.

That is one of the areas where practical EV ownership differs from simply owning a petrol vehicle.

Have you ever checked whether the tyres on an EV were specifically suited to its weight and operating requirements?

12/08/2026

🔌 What Happens Between Your EV and the Charging Station?

When you plug an EV into a charger, electricity doesn’t simply start flowing immediately.

The vehicle and EVSE communicate first.

The charging process involves several checks and control signals before energy is delivered.

The basic sequence:

1. Plug connected 🔌
The vehicle detects that the connector is properly connected.

2. Communication & safety check 🤝
The EV and charging equipment establish the necessary communication and confirm that charging conditions are safe.

3. Vehicle authorization ⚡
The vehicle determines whether it is ready to accept energy.

4. Charging begins 🔋
Power is delivered according to the vehicle’s requirements and the charger’s capability.

5. Continuous monitoring 🛡️
The BMS and other control systems continuously monitor voltage, current, temperature and battery conditions.

6. Charging stops safely ✅
When the target SOC is reached—or if a fault or unsafe condition is detected—the charging system reduces or stops power.

The important lesson:

The charger isn’t working alone.

The charging ecosystem involves:

🔌 EVSE — supplies and controls charging power
🧠 VCU — coordinates vehicle systems
🔋 BMS — monitors and protects the battery
⚡ OBC — handles AC-to-DC conversion during AC charging
🌡️ Thermal Management — controls temperature

This is why EV charging infrastructure isn’t simply about installing a powerful charger.

Successful EV charging is a conversation between the infrastructure and the vehicle.

And as EV adoption grows in Nigeria, understanding that communication will become increasingly important for technicians, fleet operators and charging-infrastructure developers.

Have you ever wondered what happens electronically between plugging in the cable and seeing “Charging” on the dashboard?

11/08/2026

⚡ EV Charging Curve: Why Charging Slows Down as the Battery Fills

One question I hear often is:

“If the charger is rated at 150 kW, why doesn’t my EV charge at 150 kW all the way to 100%?”

The answer is the charging curve.

An EV doesn’t simply take the maximum available power throughout the entire charging session. The vehicle continuously adjusts charging power based on battery conditions.

🔋 Low SOC — Higher Power
When the battery is relatively low, the vehicle can usually accept higher charging power.

⚡ Mid SOC — Power Begins to Adjust
As the battery fills, the BMS monitors voltage, temperature and cell conditions and may begin reducing power.

🔋 High SOC — Significant Power Reduction
As the battery approaches full, charging power typically drops further. This helps protect the cells and maintain battery health.

🌡️ Temperature Also Matters

A battery that is too cold or too hot may accept less power, even when the state of charge is low.

This is one reason battery pre-conditioning can be important before DC fast charging.

The key takeaway:

The charger provides the capability.
The vehicle decides how much power the battery can safely accept.

So when planning EV charging infrastructure, we shouldn’t look only at the charger’s kW rating.

We also need to consider:

🔋 Battery capacity
🌡️ Battery temperature
⚡ Vehicle charging capability
🛡️ BMS strategy
🔌 Charger capability
📊 State of Charge

For EV fleets, understanding the charging curve can make a major difference in charging time, vehicle utilization and operational efficiency.

Have you noticed your EV charging much faster from 10–50% than from 80–100%? That’s the charging curve in action.

10/08/2026

⚡ AC Charging vs DC Fast Charging: What’s the Real Difference?

Many people hear “EV charging” and assume all chargers work the same way.

They don’t.

The biggest difference between AC charging and DC fast charging is where the electricity is converted before reaching the battery.

🔌 AC Charging

* Power comes from the grid as AC.
* The vehicle’s Onboard Charger (OBC) converts AC to DC.
* Charging is generally slower but ideal for overnight/home charging.
* Best suited for longer parking periods.

⚡ DC Fast Charging

* The charger converts AC to DC externally.
* DC power is delivered directly to the vehicle’s high-voltage battery.
* Much higher charging power is possible.
* Best suited for highway stops, commercial fleets and situations where charging time matters.

But there’s an important point:

A powerful DC charger does not automatically mean the vehicle will charge at that power.

The vehicle still controls how much energy the battery can safely accept based on:

🔋 Battery SOC
🌡️ Battery temperature
⚡ Vehicle charging capability
🛡️ BMS limits
🔌 Charger capability

This is why understanding the entire charging system is more important than simply looking at the charger’s kW rating.

For EV mobility to scale successfully in Nigeria, we need to understand not just the vehicles, but also the charging infrastructure, grid requirements, battery technology and user behaviour behind them.

AC or DC — which charging solution do you think will be more important for Nigeria’s EV market?

09/08/2026

⚡ DC Fast Charging: Why Your EV Doesn’t Charge at Maximum Power All the Time

One of the biggest misconceptions about EV charging is that a 100 kW, 150 kW, or 200 kW charger will always deliver that power to the vehicle.

It doesn’t.

Your EV determines how much power it can safely accept based on several factors — especially battery state of charge, battery temperature, and battery condition.

This is why EV charging follows a charging curve.

🔋 What happens during a DC fast-charging session?

1️⃣ Low State of Charge — Higher Charging Power

When the battery is relatively low, the vehicle can often accept high charging power.

This is where you typically see the fastest part of the charging session.

2️⃣ Mid State of Charge — Sustained Power

As the battery fills, the vehicle continuously monitors battery voltage, temperature and cell conditions.

The charging system may gradually reduce power to maintain safe and efficient charging.

3️⃣ High State of Charge — Power Drops

Once the battery gets closer to full, charging power can drop significantly.

This protects the battery and prevents excessive stress on the cells.

🌡️ And temperature matters too.

A battery that is too cold or too hot may not accept high charging power even when the SOC is low.

That’s why battery pre-conditioning is so important.

The vehicle can prepare the battery before arriving at a fast charger, helping it reach a more suitable temperature for charging.

⚡ So what determines DC charging speed?

🔋 State of Charge (SOC)
🌡️ Battery Temperature
⚡ Charger Capacity
🔌 Vehicle’s Maximum Charging Rate
🛡️ Battery Management System (BMS)
🔧 Battery Condition

This is why saying “I used a 100 kW charger” doesn’t necessarily mean your EV charged at 100 kW.

The charger provides the capability.

The vehicle decides how much power the battery can safely accept.

For EV owners, understanding the charging curve can help you make better decisions about when to charge, how long to stay at a fast charger, and why charging from 10% to 80% can be much more time-efficient than trying to reach 100% on a DC fast charger.

Have you ever plugged into a high-power charger and wondered why your EV wasn’t charging at the advertised speed?

That’s the charging curve at work.

08/08/2026

❄️ Battery Pre-Conditioning: Why EVs Prepare the Battery Before You Drive or Charge

An EV battery doesn’t perform the same way at every temperature.

When the battery is too cold, charging can become slower and power delivery can be limited. When it is too hot, the vehicle may reduce performance or charging power to protect the cells.

This is where battery pre-conditioning becomes important.

What is battery pre-conditioning?

Battery pre-conditioning is the process of deliberately bringing the high-voltage battery toward its preferred operating temperature before demanding high performance or fast charging.

For example, when an EV’s navigation system knows you’re approaching a DC fast charger, the vehicle may begin warming or cooling the battery in advance.

How does it work?

🔋 Battery Management System (BMS) monitors cell temperatures.

🌡️ Thermal Management System determines whether heating or cooling is required.

⚡ Electric heater or cooling circuit adjusts the battery temperature.

🚗 Vehicle Control Unit (VCU) coordinates the process with the rest of the vehicle.

🔌 Fast charging can then take place under more favorable battery conditions.

Why does it matter?

A properly conditioned battery can help:

⚡ Improve DC fast-charging performance.

🔋 Reduce charging limitations caused by temperature.

🚗 Maintain better power delivery.

🛡️ Protect the battery from excessive thermal stress.

📈 Improve consistency in cold or hot conditions.

Here’s something many EV owners don’t realize:

Battery temperature can be just as important as battery percentage when it comes to fast charging.

You can arrive at a charger with 20% SOC, but if the battery is too cold or too hot, the vehicle may not accept the charging power you expect.

This is why some EVs automatically pre-condition the battery when a fast charger is selected as a destination.

For EV owners, understanding SOC, battery temperature and charging power together gives a much better picture of what is actually happening during a charging session.

Would you rather have 20% battery at the right temperature or 40% battery at the wrong temperature when arriving at a fast charger?

Adsony Auto Pro

16/08/2026

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