Charging your electric car at home is the most convenient and affordable way to keep your EV running. Plug in when you get home, wake up to a full battery. A typical home charge costs around ₹150–400 and works out to roughly ₹1–1.5 per kilometre — about 80% cheaper than running a petrol car.
Over 90% of EV charging happens at home. And once you have the right setup, it really is as simple as charging your phone every night. This guide covers everything you need to know: what charger to pick, how much it costs, how to get it installed safely, and a few things most people overlook.
First, Understand Your Charging Options
You don’t need to think in terms of “Level 1, Level 2, Level 3” — that terminology can be confusing. Here’s a simpler way to look at it based on the actual power output:
| Charger Type | Power Output | What You Need at Home | Typical Charging Time |
|---|---|---|---|
| Basic (Portable) | Up to 3.6 kW | Standard 16A socket with dedicated circuit | 12–15 hours for a full charge |
| Mid-range | 7.2–7.5 kW | Single-phase supply + dedicated 32A circuit | 6–8 hours for a full charge |
| Fast AC | 11–22 kW | Three-phase supply required | 2–4 hours for a full charge |
Â
Each of these has a place. A 3.6 kW charger is perfectly fine if you drive 30–40 km a day and can charge overnight. A 7.5 kW charger is faster and works well for longer commutes. And if you have three-phase power at home and want the quickest turnaround, an 11–22 kW charger gets the job done in a couple of hours.
The point is: the fastest charger isn’t always the best choice. Pick what makes sense for your driving pattern, your home’s electrical setup, and your budget. You can always upgrade later.
Check What Your Car Can Actually Accept
This is something a lot of people miss. Your car has an onboard charger (a built-in AC-to-DC converter) that limits how fast it can take in power. Buying a 22 kW wall charger won’t help if your car’s onboard charger only accepts 3.3 kW — it’ll still charge at 3.3 kW.
Let’s take the Tata Nexon EV as an example since it’s the most popular electric car in India:
- The standard Nexon EV has a 3.3 kW onboard charger. Pair it with a 3.3–3.6 kW home charger, and a 10–100% charge takes roughly 8–9 hours overnight.
- The Long Range variant has a 7.2 kW onboard charger. With a matching 7.2 kW wall charger, you’re looking at about 6–7 hours.
So the smart move is to match your charger to your car’s onboard capacity. If your car accepts 7.2 kW, get a 7.2 kW charger. Don’t overspend on a 22 kW unit unless you’re planning for a future car that supports it.
That said, here’s something worth knowing: with chargers like the ZEVpoint range, you can control the power load through the app. So even if you buy a higher-rated charger today, you can dial it down to match your current car and turn it up when you upgrade. It’s a practical way to future-proof without overpaying right now.
Portable or Wall-Mounted? Choosing Based on Your Situation
This is one of the first decisions you’ll need to make, and it really comes down to how and where you park.
Go with a wall-mounted charger if:
- You have a dedicated parking spot at home (house, assigned apartment parking, garage)
- You want faster charging speeds (7.2 kW and above)
- You prefer a clean, permanent installation that’s always ready to use
- You don’t mind the one-time installation cost
Go with a portable charger if:
- You don’t have a fixed parking spot or wall space for mounting
- You split time between two homes, or between home and office
- You rent your place and can’t make permanent installations
- You travel often and want to charge at different locations
- You want a backup charger to keep in the boot of your car
Many EV owners actually end up with both — a wall-mounted unit at home for daily use and a portable one for travel or as a backup. There’s no wrong answer here. It depends entirely on your situation.
Getting Your Charger Installed
We’d always recommend getting a professional installation done. EV chargers draw continuous power for hours, and the electrical setup needs to be done properly for safety and reliability. Here’s what’s typically involved:
- A dedicated circuit from your distribution board to the charger location, separate from your home’s regular wiring
- Proper earthing — this is non-negotiable. Without good earthing (below 5 ohms resistance), a fault could make your car’s body live. More on this below.
- Safety devices — MCB for overcurrent protection, RCD/RCCB for earth leakage detection, and ideally an SPD (surge protector) for voltage spikes
- Mounting and testing the charger, followed by a full load test before you start using it
Most reputable charger brands offer installation assistance — we’d suggest taking that option. Even if you have a trusted electrician, it helps to have someone who specifically understands EV charger requirements handle it. We at ZEVpoint offer professional installation support across most cities, and we also share detailed installation guidelines if you’d prefer to work with your own electrician.
What Does It All Cost?
One-time setup cost
| Component | Typical Cost Range |
|---|---|
| EV charger unit (3.6–7.5 kW) | ₹8,000 – ₹30,000 |
| Installation (wiring, MCB, earthing, labour) | ₹3,000 – ₹10,000 |
| Electrical upgrade (if needed — not always required) | ₹5,000 – ₹12,000 |
For most homes, the total comes to somewhere between â‚ą15,000 and â‚ą40,000 depending on the charger you pick and how much electrical work is needed. If your home already has a 32A socket near the parking area, the installation cost is minimal.
Monthly running cost
Taking the Tata Nexon EV as a reference point: a full charge costs roughly ₹200–350 at home electricity rates (₹6–8 per unit in most states). If you drive about 40 km a day, expect your monthly electricity bill to go up by around ₹800–1,500.
For context, running the petrol Nexon for the same 40 km daily costs about ₹7,000–8,000 a month. So you’re saving ₹5,000–6,000 every month on fuel alone. The charger pays for itself within a few months.
A Note on Electrical Safety
We can’t stress this enough: don’t cut corners on the electrical side. An EV charger draws continuous heavy load for hours, and the safety devices exist for very real reasons.
At a minimum, your installation should include:
- Proper earthing — this is the most critical one. Without it, a single insulation fault can make your car’s metal body live at 230V. Get it tested (should be below 5 ohms).
- An MCB (Miniature Circuit Breaker) sized correctly for your charger’s current rating
- An RCD or RCCB (Residual Current Device) that cuts power instantly if it detects current leaking to earth — this is what prevents electrocution
- Ideally, an SPD (Surge Protection Device) to protect against voltage spikes from lightning or grid fluctuations, which are common in many parts of India
These devices together cost around ₹2,000–5,000. There’s no good reason to skip them. We cover this in much more detail in our separate guides on earthing and electrical safety devices — worth reading before you get your installation done.
What if You Live in an Apartment?
If you’re in a housing society, you might be wondering whether your RWA will even allow a charger installation. The good news: the Bombay High Court ruled in January 2025 that societies cannot arbitrarily deny EV charger installations as long as safety standards are met. Several states including Delhi, Tamil Nadu, and Maharashtra have also updated building bylaws to support EV-ready parking.
The process is usually straightforward. Submit a written request to your RWA, get an electrical load assessment done for your parking area, and have a certified electrician handle the installation. The charger connects to your individual electricity meter, so you only pay for what you use. We have a detailed guide on setting up EV charging in housing societies and RWAs that walks through the full process.
Pick What Works for You, Not What’s “Best” on Paper
One thing we’d suggest: don’t get caught up in chasing the highest power rating or the most feature-packed charger. What matters is that the charger fits your daily routine.
If you drive 30–40 km a day and can plug in overnight, a simple 3.6 kW charger does the job perfectly well and costs a fraction of a 22 kW unit. If you have a longer commute or irregular schedule and need the car ready faster, a 7.5 kW charger gives you that flexibility. And if you’re running a household with multiple EVs or you have three-phase power and want the fastest option, 11–22 kW is there for you.
The “best” charger is the one that fits your life — your driving pattern, your parking setup, your electrical situation, and your budget. Start with what makes sense today, and know that upgrading later is always an option.
Common Questions
Can I just plug into a regular 15A socket?
Yes, most EVs come with a portable charger that works with a 15A socket. It’ll charge at about 2–2.5 kW, which means 14–18 hours for a full charge. It works as a backup, but regular sockets aren’t designed for continuous heavy loads. For daily use, a dedicated charger is safer and much faster.
Do I need a separate electricity meter?
No. Your charger connects to your existing home meter. Some states offer discounted EV tariffs if you install a separate meter, but it’s not a requirement.
What if there’s a power cut while charging?
Nothing to worry about. Charging pauses automatically and resumes when power is back. No damage to the car or battery.
