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How to Choose EV Charger kW for Your Car
Verified 2026-09-05 · By VUKAR Editorial Team
Find the power your car and supply can actually use. A larger charger label is not always a faster charge.
- Write your car's maximum AC charging rate, not its DC fast-charge figure.
- Check the safe power available at your parking space.
- Compare the exact Spin Air 7.4, 11 and 22 kW variants against both limits.
- Choose enough power for your real charging window, then compare installation cost.
Find these three numbers
- Car limit: ask the vehicle maker for the exact variant's maximum AC charging power.
- Charger limit: copy the rated kW from the selected model, not a family advertisement.
- Site limit: ask the installer what power the approved supply can provide while other loads run.
- The usable rate cannot exceed the lowest relevant limit. Battery conditions can reduce it further.
What changes between these exact variants?
| Check | Spin Air 7.4 | Spin Air 11 | Spin Air 22 |
|---|---|---|---|
| Named power | 7.4 kW | 11 kW | 22 kW[S1] [S2] [S3] |
| Input listed | 1-phase | 3-phase | 3-phase[S1] [S2] [S3] |
| If car accepts only 7.4 kW AC | Up to car/site limit | Still up to car/site limit | Still up to car/site limit[S6] |
| Before choosing | Check overnight need | Check benefit and supply | Check benefit and supply[S5] [S6] |
Products you can evaluate
Official-store variant examples, not a ranking. Confirm the exact hardware revision and installed scope.
Exicom
Exicom Spin Air 7.4 kW — 1-phase Smart Charger
Exact model/variant: Spin Air 7.4 kW — 1-phase
Check this exact one-phase variant after the site and vehicle are approved.[S1]
- 7.4 kW model heading
- One-phase input listed
- App-enabled listing
Price: Official page shows Add to Cart and Buy now. Check pincode, exact variant and current installed total.
Seller: Exicom official India marketplace · checked 2026-09-05
Check current price and stockExicom
Exicom Spin Air 11 kW — 3-phase Smart Charger
Exact model/variant: Spin Air 11 kW — 3-phase
Consider this variant only when your supply and car can use the proposed power.[S2]
- 11 kW model heading
- Three-phase input listed
- Check your car's AC limit
Price: Official page shows Add to Cart and Buy now. Check pincode, exact variant and current installed total.
Seller: Exicom official India marketplace · checked 2026-09-05
Check current price and stockExicom
Exicom Spin Air 22 kW — 3-phase Smart Charger
Exact model/variant: Spin Air 22 kW — 3-phase
Review this variant when a documented charging need justifies its capacity.[S3]
- 22 kW model heading
- Three-phase input listed
- Not a 22 kW promise for every car
Price: Official page shows Add to Cart and Buy now. Check pincode, exact variant and current installed total.
Seller: Exicom official India marketplace · checked 2026-09-05
Check current price and stockDo not mix kW with kWh
- Spin Air is the charger family. Add the exact power and phase when ordering.
- kW is the charging rate. Think of how fast energy can be delivered.
- kWh is the amount of energy. It appears on battery labels and electricity bills.
- A car's large DC charging number is not its home AC limit. Ask for the correct figure.
One small example
Suppose you need 14.8 kWh and the actual constant power is 7.4 kW. Simple division gives 2 hours before allowing for losses or changing power.[S6] [S7]
If the car still accepts only 7.4 kW, changing the box label to 22 kW does not turn that into a 22 kW session.[S6] [S7]
Use the tool for your own window
- Enter the exact vehicle battery data and the starting and target charge levels.
- Use confirmed AC power, not the charger maximum when the car or site is lower.
- Use your applicable electricity tariff. Do not copy another home's cost per unit.
- Compare the result with the time between parking and leaving.
- Allow for interruptions. Charging time is an estimate.
When is extra power useful?
- When your car can accept it, your approved supply supports it, and it solves a real time shortage.
- Ask how much the supply and installation upgrade costs before choosing a higher-rated unit.
- If all options meet the needed window, compare controls, service and total cost rather than chasing the biggest kW.
Ask these before paying
- What AC rate does my exact car variant accept?
- Is the quoted power available at my parking space?
- Will this need a phase or supply-capacity change?
- What charging time applies to my stated start and target levels?
- Which exact kW variant and hardware revision will arrive?
- What is the total after installation, extra cable and supply work?
Use the exact official listing
- Open the model link and verify the kW and phase in the product heading.
- A higher kW rating is capacity you may use, not proof of lower energy cost.
Do not raise current settings yourself
Quick questions
Is 22 kW twice as fast as 11 kW?
Only if the whole charging path can use the extra power. The car and site limits still apply.[S6]
Will a larger battery always need a bigger charger?
No. The energy you need to add and the time available matter, not just the full battery label.[S6] [S7]
Does faster home charging always cost less?
No. Cost depends on energy drawn and your tariff. Installation cost is separate.[S7]
This comparison covers only the listed models, criteria, sources, and verification date. Omission or missing public data is not a negative judgement about any brand.
References used for this guide
- Spin Air 7.4 kW one-phase official store listing — Exicom; accessed 2026-09-05
- Spin Air 11 kW three-phase official store listing — Exicom; accessed 2026-09-05
- Spin Air 22 kW three-phase official store listing — Exicom; accessed 2026-09-05
- Spin Air family features and official Order now route — Exicom; accessed 2026-09-05
- Spin Air installation service scope — Exicom; accessed 2026-09-05
- Charging equipment: vehicle limits and AC charging principles — Australian Government; accessed 2026-09-05
- Home Charging Calculator — NITI Aayog e-AMRIT; accessed 2026-09-05
- Measures relating to Safety and Electric Supply Regulations 2023 — Central Electricity Authority; accessed 2026-09-05
