How to Choose and Install a Level 2 EV Charger for Home?

Picture this: After switching to an electric vehicle (EV) in California, you began your journey toward a greener, sustainable future. But the slow charging speeds of home Level 1 chargers are creating home-based electric vehicle charging and top-offs that feel 2X inconvenient for you. 

Using a Level 1 charger to power your electric vehicle gives you 2-5 miles of additional range every hour of charging. Most EV owners find the slow charging speed a frustrating aspect since they want to save time.

The following guide offers comprehensive support for choosing and installing your residential Level 2 EV charger so you can expedite EV charging while improving ease and ensuring vehicle readiness.

How to Choose a Level 2 EV Charger for Home

When selecting a Level 2 EV charger, it’s crucial to evaluate multiple factors that will ensure compatibility, efficiency, and ease of installation.

1. Can Your Home Handle the Extra Power for a Level 2 Charger?

Before purchasing any charger, you need to ensure your home’s electrical system can support the additional load.

• Electrical Panel Capacity: Most homes have a 100-amp panel, but to support a Level 2 charger, you may need to upgrade to a 200-amp panel, especially if you have other high-power appliances running.
  
• Dedicated Circuit: A Level 2 charger requires a dedicated 240-volt circuit with a 40-50 amp breaker.
  

2. Choose the Right Power Output for Your EV

Level 2 chargers come in a range of power outputs (16-50 amps). The more amps, the faster the charging speed. Here’s what you need to know:

• 16-30 amps: These chargers provide a slower charge, adding around 12-25 miles per hour of charging.
  
• 32-40 amps: These are the most common and provide around 25-30 miles per hour of charging.
  
• 50 amps: High-performance chargers that can charge your vehicle at up to 37-40 miles per hour.
  

Example:

The Tesla Wall Connector (48 amps) delivers faster charging specifically for Tesla vehicles. If you have a Chevy Bolt or Nissan Leaf, a JuiceBox 40 (40 amps) or ChargePoint Home Flex (up to 50 amps) would be ideal.

3. Compatibility with Your EV

Not all chargers are compatible with every electric vehicle. Some chargers, like the Tesla Wall Connector, are specifically designed for Tesla models, while others, like ChargePoint or JuiceBox, work with a wide variety of EVs.

• For Tesla: The Tesla Wall Connector (48 amps) is a top choice for fast charging.
  
• For other EVs: The ChargePoint Home Flex (16-50 amps) is highly versatile, working with most EVs including the Chevy Bolt and Nissan Leaf.
  

4. Consider Smart Features

Smart chargers provide a range of features that help optimize energy use, reduce costs, and give you more control over your charging routine:

• Wi-Fi Connectivity: Enables remote monitoring and charging scheduling through an app.
  
• Energy Tracking: Allows you to track your energy consumption and charging costs.
  
• Scheduling: Set your charger to operate during off-peak hours for lower electricity rates.
  

Examples: ChargePoint Home Flex, JuiceBox 40, and Emporia Level 2 EV Charger offer smart capabilities that make home charging more efficient and user-friendly.

Emporia Classic Level 2 EV Charger Review

Should I Go with Tethered or Untethered?

When selecting a Level 2 EV charger, you will need to choose between a tethered or untethered model.

Tethered Chargers

• Pros: Come with an attached cable, making it easier to plug in your car without worrying about finding or storing the cable.
  
• Ideal for: Those who park in the same location daily and prefer convenience.
  
• Example: Tesla Wall Connector is tethered, designed to plug directly into your Tesla.
  

Untethered Chargers

• Pros: Offer flexibility by allowing you to use any type of EV plug that suits your vehicle. The cable is separate and can be stored away.
  
• Ideal for: Households with multiple EVs or varied charging needs.
  
• Example: ChargePoint Home Flex offers an untethered model.
  

Which is Better, a 3kW or 7kW Home Charger?

The primary difference between 3kW and 7kW chargers lies in their charging speed and power output.

3kW Charger

• Charging Speed: Adds about 10-15 miles per hour of range.
  
• Ideal for: Smaller EV batteries or light daily use.
  

7kW Charger

• Charging Speed: Adds 20-30 miles per hour of range.
  
• Ideal for: Most households and standard EVs like Chevy Bolt or Nissan Leaf.
  

Recommendation: For a typical home setup, the 7kW charger is the better option, as it offers significantly faster charging and is compatible with most EVs.

How Many Watts & Amps Does an EV Charger Need?

Understanding the power requirements of your Level 2 charger ensures you select the right one for your home’s electrical system.

Power Output (Watts):

• Level 2 chargers typically range from 3.3 kW to 19.2 kW.
  
• 7.2 kW is the most common output for home installations.
  

Amps:

• Most Level 2 chargers range from 16 amps to 50 amps.
  
• For most homes, 32 amps (providing 7.6 kW) is an ideal choice.
  

What is the Best EV Charger for Home? Top Picks by Name

Here are the top-rated Level 2 chargers for home installations:

• ChargePoint Home Flex: 16-50 amps, Wi-Fi enabled, adjustable settings, ideal for various EVs.
  
• JuiceBox 40: 40 amps, Wi-Fi features, energy tracking, and scheduling.
  
• Tesla Wall Connector: 48 amps, perfect for Tesla models with faster charging.
  

These chargers stand out for their speed, smart features, and compatibility.

ChargePoint HomeFlex Level 2 EV Charger J1772 [Review]

Comparison Table: Popular Level 2 EV Chargers

Charger Model	Power Output (Amps)	Voltage (V)	Wi-Fi Enabled	Price Range
ChargePoint Home Flex	16-50 amps	240V	Yes	$699 – $799
JuiceBox 40	40 amps	240V	Yes	$599 – $699
Tesla Wall Connector	48 amps	240V	Yes	$550 – $650
ClipperCreek HCS-40	32 amps	240V	No	$499 – $599
Grizzl-E Classic	40 amps	240V	No	$399 – $499

How to Install a Level 2 EV Charger for Home

Installing a Level 2 EV charger at home requires careful planning, a professional electrician, and a suitable location. Follow these steps for a safe and effective installation.

Step 1: Assess Electrical System

Ensure your home’s electrical panel can support a 240-volt circuit with 40-50 amps.

• Example: If you’re installing a ChargePoint Home Flex (32 amps), your panel should be able to handle a 40-amp breaker.
  

Step 2: Choose Installation Location

• Garage: Ideal for indoor charging.
  
• Outdoor Installation: Make sure to select a weatherproof charger, like the Grizzl-E Classic, rated NEMA 4 for durability.
  

Step 3: Hire a Certified Electrician

Only a certified electrician should handle the wiring and breaker installation to ensure safety and compliance with electrical codes.

Step 4: Mount and Wire the Charger

• Mounting: Position the charger at a convenient height (usually 48 inches from the ground).
  
• Wiring: The electrician will connect the charger to the 240-volt circuit and ensure proper grounding.
  

Step 5: Test the System

Once installed, test the system by plugging in your vehicle to ensure everything works correctly. Use the charger’s mobile app (if available) for monitoring and scheduling.

Can I Wire an EV Charger Myself?

While it’s technically possible, wiring an EV charger yourself is not recommended. It requires knowledge of electrical systems and code compliance. A licensed electrician will ensure everything is up to code and safe.

Electrical panels in most homes are 100-amps, but you may need to upgrade to a 200-amp panel to handle the extra load. Additionally, grounding and bonding are essential to avoid electrical shocks.

Only a licensed electrician ensures the installation complies with the National Electrical Code (NEC) and local regulations, reducing the risk of fire and damage.

THE RIGHT WAY to Install a Level 2 Car Charger

✅ Hire a Professional: Always hire a licensed electrician to install your Level 2 charger.

✅ Assess the Electrical System: Make sure your electrical panel can support the load.

✅ Choose the Right Charger: Select a charger compatible with your vehicle’s specifications.

✅ Choose an Ideal Location: Ensure accessibility and weatherproofing if outdoors.

✅ Test and Finalize: Ensure the charger works and meets your needs.

5 Mistakes to Avoid in Home EV Charger Installation

❌ Not Upgrading Your Electrical Panel: Make sure your panel can handle the extra load.

❌ Choosing an Incompatible Charger: Ensure your charger is compatible with your EV’s onboard system.

❌ DIY Installation: Always hire a certified electrician.

❌ Ignoring Permits: Ensure proper permits are obtained to avoid legal issues.

❌ Choosing the Wrong Location: Install the charger at a convenient and safe location.

How Can a “Smart Charger” Benefit Me?

A smart charger offers several advantages:

• Remote Monitoring: Track energy usage and performance remotely.
  
• Scheduling: Charge your EV during off-peak hours to save on energy costs.
  
• Energy Tracking: Monitor and manage your energy consumption for cost and efficiency.
  

FAQs

1. How long does it take to charge an EV with a Level 2 charger?

It typically takes between 4-8 hours to fully charge an EV using a Level 2 charger, depending on the vehicle’s battery size and the charger’s power output.

2. Can I install a Level 2 charger in an apartment complex?

Yes, but you may need permission from your landlord or HOA, and the installation will need to comply with local regulations and electrical codes.

3. How much does it cost to install a Level 2 charger at home?

Installation costs can range from $500 to $2,000, depending on the complexity of the setup and whether your electrical panel needs an upgrade.

4. Can I use a standard extension cord for my Level 2 charger?

No, it is not recommended to use an extension cord due to safety risks. Always ensure the charger is directly connected to a dedicated 240V circuit.

5. Are there any government rebates or incentives for installing an EV charger?

Yes, many states, including California, offer rebates or tax incentives for EV charger installations. Check local programs for available incentives.

Conclusion

Your EV charging experience becomes both more efficient and convenient after you select and have a Level 2 EV charger installed. Analyzing essential factors such as power production capabilities and vehicle compatibility together with smart feature systems helps maximize your at-home charging process. 

The installation must always be professionally done to prevent common installation errors so you can get the advantage of quick dependable charging.