Trystan Casey
Building an electric Jeep Wrangler is a challenging but rewarding endeavour that requires careful planning and execution. The process typically involves converting a traditional Wrangler to run on electric power, with the option to build from scratch or use a pre-built electric vehicle (EV) conversion kit. Those seeking to convert their Wrangler to electric power should consider the drivetrain, with the option to mount an electric motor to the existing transmission or wait for powered axles to become available. The use of Tesla parts, particularly motors and batteries, is also a popular choice for conversions. Converting a Wrangler to electric can cost anywhere from under $20,000 to $50,000 or more, depending on the desired range and performance.
| Characteristics | Values |
|---|---|
| Chassis | New or used |
| Bodywork | Stock Jeep panels, aftermarket panels, or custom-made panels |
| Paint and Finish | Various colours and finishes |
| Customization | Fender flares, bumpers, side steps, suspension lift, off-road tires, durable wheels, axle and differential upgrades |
| Lighting | LED headlights, taillights, and off-road lights |
| Exterior Accessories | Winch, roof rack, custom grille |
| Interior Accents | Custom seat covers, steering wheel wraps, door panel inserts |
| Drivetrain | Electric motor mounted to the existing transmission using an adapter plate or powered axles |
| Parts | Tesla motors and batteries, salvaged vehicle parts |
| Range | 50 miles/charge (CJ-series), 120 miles (TJ Wrangler) |
| Cost | $20k-$50k+ depending on range and build quality |
| Safety | High voltage and amperage can be dangerous |
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What You'll Learn
- Choosing a model: Older models are cheaper but may lack safety features
- Research: View other builds, start a document with links and pictures
- Drivetrain: Adapt an electric motor to the existing transmission
- Batteries: Pouch cells can replace the gas tank to increase range
- Exterior: Choose body panels, paint, and finish to reflect your style
Choosing a model: Older models are cheaper but may lack safety features
When choosing a model for your electric Jeep Wrangler conversion, it's important to consider the trade-offs between older and newer models. Older Jeep Wrangler models, such as the CJ-5, CJ-7, or CJ-8, are often cheaper and may be more suitable for conversion due to their simpler design. They typically have fewer computer or power components, and some people prefer manual brakes and steering for a more efficient conversion process.
However, older models may lack the advanced safety features found in newer Jeep Wranglers. The 2024 and 2025 Jeep Wrangler models, for instance, offer improved safety technologies such as forward collision warning, blind-spot monitoring, rear cross-path detection, adaptive cruise control, automatic emergency braking, and enhanced LED lighting for better visibility. These modern features contribute to better crash test ratings and overall safety on the road.
Additionally, the Trail Rated® badge on newer Wrangler models indicates that they have undergone rigorous testing for off-road capabilities, including traction, water fording, maneuverability, articulation, and ground clearance. This adds to the safety features that are crucial for off-road enthusiasts.
Converting an older Wrangler may be more cost-effective, but it's important to recognize the potential absence of modern safety enhancements. Newer models provide advanced driver-assistance technologies and structural reinforcements that enhance overall safety, which is a critical aspect of any vehicle.
Therefore, when choosing a model for your electric Jeep Wrangler conversion, carefully consider your budget, the complexity of the conversion process, and the importance of having the latest safety features. While older models may be more affordable, newer Wranglers offer improved safety technologies that provide added peace of mind while on the road or off-roading.
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Research: View other builds, start a document with links and pictures
When considering building an electric Jeep Wrangler, it is important to conduct thorough research by examining other builds and gathering relevant information from various sources. Here is a step-by-step guide to help you get started:
- Create a dedicated folder on your computer: Similar to the 'My Jeep' folder mentioned in the source, create a folder named 'Electric Jeep Wrangler Build' or something similar. This will be your central repository for all the links, pictures, and documents related to your project.
- Start a document with links and pictures: As suggested in the prompt, create a document within your folder to compile links and pictures of other electric vehicle (EV) builds that inspire you. Include a variety of vehicles such as VW Bugs, motorcycles, and smaller cars, as these tend to have similar characteristics to the Jeep Wrangler in terms of size and mechanical simplicity. Save any pictures that resonate with your vision for your electric Jeep Wrangler.
- Explore online forums and communities: Online forums, such as WranglerForum.com and DIYElectricCar.com, are treasure troves of information. Engage with other enthusiasts who have undertaken similar projects. For example, one forum user shared their experience converting a 1999 Jeep Wrangler to electric, while another discussed their desire to build an EV Jeep Wrangler while seeking advice on off-roading capabilities and water resistance. These discussions can provide valuable insights and ideas for your own build.
- Study conversion kits and components: Research the availability of conversion kits and components specifically designed for Jeep Wranglers. Advances in technology have made it increasingly feasible to convert Wranglers to electric power. Look into powered axles, which may simplify the conversion process for solid axle vehicles like Wranglers. Both Magna and Allison are reportedly developing powered axles, and there are rumors that Magna is collaborating with Jeep.
- Consider using Tesla parts: Tesla parts, particularly motors and batteries, are commonly used in conversions. You can source these parts online from salvaged vehicles. A forum user shared their experience converting a 1997 TJ Wrangler using Tesla parts and motors, and they even provided a link to their YouTube channel documenting the build process with 70 videos.
- Evaluate the drivetrain options: Converting the drivetrain of a Jeep Wrangler to electric can be complex. You can either adapt an electric motor to the existing transmission using an adapter plate, which is simpler but less efficient, or opt for a more efficient approach by waiting for powered axles to become available.
- Analyze cost considerations: Converting a Wrangler to electric can vary in cost depending on your desired range and performance. Expect to spend anywhere from under $20,000 for a basic 60-mile range YJ to $50,000 or more for a higher-end build with increased range and performance capabilities.
- Safety precautions: As with any EV build, safety should be a top priority. Working with high voltage and amperage can be dangerous, so ensure that you follow the instructions and documentation provided by your controller manufacturer. Incorrect wiring can be hazardous and expensive, so take your time and seek guidance from online communities and experts if needed.
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Drivetrain: Adapt an electric motor to the existing transmission
The first step is to remove the old Jeep engine and its associated components. This alone weighs about 450 pounds, so it will be a significant task. Once the engine is removed, you will need to pick a motor to use.
Next, you will need to source or design an adapter to connect the electric motor to the existing transmission. This is a less efficient but simpler approach than using motors at the wheels. You will also need to calculate the overall gear reduction ratio required for the tires, based on the maximum motor RPM and desired maximum vehicle speed.
After this, you can install the electric motor. This will involve mounting the motor to the transmission using an adapter plate. You may also need to tweak the position of the engine to make the existing driveshafts work, but it is recommended to order new ones as part of the build's budget.
Finally, you will need to determine the range autonomy you want, which will impact the placement of the battery modules. You can scatter the cells and modules throughout the Jeep, and there is a lot of room for them once the engine is removed. The primary logical locations are under the hood, or in the space where the fuel tank used to be.
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Batteries: Pouch cells can replace the gas tank to increase range
Batteries are a crucial component of any electric vehicle (EV) conversion project, and the choice of battery type and configuration can significantly impact the performance and range of the final product. When it comes to building an electric Jeep Wrangler, there are several options to consider, including pouch cells, which offer unique advantages and trade-offs.
Pouch cells, also known as lithium-ion pouch cells, are a type of battery commonly used in electric vehicles. They are designed to provide high power output and fast discharge rates, making them particularly well-suited for racing applications. By using a string of pouch cells, such as the A123 cells, you can achieve impressive power outputs of 2000 amps or even 4000 amps with 200ah cells. This high power capability can be advantageous for an electric Jeep Wrangler build, especially if you plan to use it for off-roading or high-performance driving.
One of the benefits of pouch cells is their compact size and lightweight design. By using pouch cells, you can create a smaller and lighter battery pack that delivers the same power output as larger and heavier alternatives. This weight reduction can be beneficial for a Jeep Wrangler conversion, as it can help improve overall vehicle performance and efficiency. Additionally, the compact size of pouch cells allows for more flexible packaging and installation options, which can be advantageous when working with the limited space constraints of a Jeep Wrangler.
However, it's important to consider the trade-offs when using pouch cells. While they provide high power output, pouch cells typically have less stored energy compared to other battery types. This means that the range of your electric Jeep Wrangler may be impacted. To compensate for this, you may need to use a larger number of pouch cells or combine them with other battery types to achieve the desired range. Additionally, the high discharge rates of pouch cells may not be fully utilized for street or daily driving, where sustained power delivery over longer distances is more important than instantaneous power output.
When building an electric Jeep Wrangler, it's essential to consider the range and performance requirements specific to your use case. If you prioritize speed and acceleration, pouch cells can be an excellent choice due to their high power output capabilities. However, if range and energy efficiency are more critical, you may need to explore additional options, such as combining pouch cells with other battery types or considering alternative battery technologies altogether. Ultimately, the decision should be guided by your intended usage, performance goals, and budget constraints.
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Exterior: Choose body panels, paint, and finish to reflect your style
When it comes to building an electric Jeep Wrangler, one of the most important aspects is choosing the right body panels, paint, and finish to reflect your personal style. Here are some tips to help you get started:
Body Panels:
Body panels are the parts of your vehicle that are visible from the outside and play a crucial role in both aesthetics and functionality, including safety and aerodynamics. When choosing body panels for your electric Jeep Wrangler, consider the following:
- Make and Model: The cost of body panels can vary depending on the make and model of your Wrangler. Ensure you select panels compatible with your vehicle.
- Original vs Aftermarket: Original Equipment Manufacturer (OEM) panels offer a precise fit and quality but are usually more expensive. Aftermarket panels are more budget-friendly, but quality and fit can vary, so choose reputable brands.
- New vs Used: Used body panels can be found in salvage yards or online marketplaces at significantly lower prices, but thorough inspections are necessary to ensure they are in good condition.
- Replacement vs Restoration: Consider whether you are replacing worn-out or rusted panels or restoring the entire vehicle. This will impact the scope of your project and the number of panels required.
Paint and Finish:
The paint and finish you choose for your electric Jeep Wrangler will not only reflect your style but also protect your vehicle from the elements. Here are some popular options to consider:
- Standard Solid Finish: This is the most common vehicle finish, offering an iconic, affordable, and practical option with a wide variety of colour choices.
- Matte Finish: If you prefer a less shiny appearance, a matte finish provides a flatter, low-key look that is particularly popular in luxury cars.
- Metallic Finish: For a shinier, glossier finish, a metallic option combines paint with powdered metal and aluminium, resulting in a glossy steel appearance.
- Pearlescent Finish: For a unique flair, pearlescent paint contains microscopic ceramic particles that refract light, giving your Wrangler a multi-coloured, colour-changing effect.
- Gloss Finish: Ranging from semi-gloss to high gloss, these finishes add shine and dimension to your vehicle. High gloss, in particular, is extremely durable, stain-resistant, and easy to clean.
Remember, when selecting a paint finish, consider factors such as durability, maintenance, and cost. Additionally, research and follow manufacturer guidelines for application to ensure a smooth and flawless finish.
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Frequently asked questions
Building an electric Jeep Wrangler requires careful consideration of the following:
- Chassis: The foundation of your build, impacting off-road capabilities, weight, and handling. You can choose between a new or used chassis, with older models being more affordable but potentially lacking modern safety features.
- Drivetrain: Adapting a Jeep often involves mounting an electric motor to the existing transmission using an adapter plate, or waiting for powered axles to become available.
- Parts: Tesla parts, particularly motors and batteries, are commonly used in conversions and can be sourced online from salvaged vehicles.
- Range: The range of your Wrangler will depend on the battery. A 90kWh Tesla battery in a TJ Wrangler can provide a "safe" range of around 120 miles.
- Cost: Conversions can range from under $20,000 for a basic setup to $50,000 or more for a higher-end build.
Here are some tips for building a Jeep Wrangler from scratch:
- Bodywork: Choose from a variety of body panels, including stock Jeep panels, aftermarket panels, or custom-made panels.
- Customisation: Add your personal touch with custom bodywork, such as fender flares, bumpers, and side steps.
- Upgrades: Consider upgrades such as a suspension lift kit, off-road tires, durable wheels, and upgraded axles and differentials for increased strength and durability.
- Lighting and Accessories: Upgrade the lighting with LED headlights, taillights, and off-road lights. Add exterior accessories like a winch, roof rack, or custom grille, and interior accents like custom seat covers and steering wheel wraps.
- Safety: Building an electric Jeep Wrangler can be dangerous due to high voltage and amperage. Always follow safety precautions and seek help from online communities or experts if needed.
When building an electric Jeep Wrangler, it is essential to gather information and resources. Here are some suggestions:
- Research and view existing electric vehicle (EV) builds, especially those with similar vehicles that are commonly converted, such as VW Bugs.
- Create a document to store helpful links, pictures, and parts lists from other EVs.
- Consider purchasing a book recommended by others on how to convert your car to electric.
- Look for electric conversion kits, which are becoming more available due to advancements in technology.
- Join online forums and communities dedicated to DIY electric car owners and enthusiasts, such as WranglerForum.com and DIYElectricCar.com.
