how to check the battery health for Tesla Model 3 Original (2017-2023)

Tesla Model 3 Highland (2024-present)

Error Codes

30 minutes to 1 hour

Time

medium

Difficulty

medium

Severity

3 min read

472 words

Problem Statement

Learn how to check the battery health of your Tesla Model 3 (2017-2023) with step-by-step diagnostic procedures and tips for optimal performance.

Affected Component

Electrical

Estimated Time

30 minutes to 1 hour

⚠️ Safety Warnings

Important safety information - read before proceeding

•Always follow Tesla's safety guidelines when handling any electrical components.
•Ensure the vehicle is turned off before inspecting any physical components, if applicable.

Symptoms

•Decreased driving range compared to original specifications
•Longer charging times
•Frequent warning messages related to battery performance
•Battery percentage drops rapidly during use
•Inability to charge to full capacity

Diagnostic Steps

1
Access the vehicle's touchscreen and navigate to 'Controls.'
2
Select 'Battery' to view the current battery status and range estimates.
3
Use the Tesla mobile app to check battery health and performance metrics.
4
Inspect for any visible damage or swelling in the battery pack if accessible.
5
Run a battery report through Tesla's service tools if available.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•Tesla mobile app
•Multimeter (optional for deeper diagnostics)

Parts Required

•None for checking battery health

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Diagnostic Steps

1
Access the vehicle's touchscreen and navigate to 'Controls.'
2
Select 'Battery' to view the current battery status and range estimates.
3
Use the Tesla mobile app to check battery health and performance metrics.
4
Inspect for any visible damage or swelling in the battery pack if accessible.
5
Run a battery report through Tesla's service tools if available.

Solution

1. Preparation

Ensure the vehicle is parked on a level surface.
Connect the vehicle to the charger to bring the battery to an optimal state for testing.
Gather necessary tools such as a multimeter (if applicable for deeper diagnostics).

2. Check Battery Status via Touchscreen

Turn on the vehicle and access the main menu on the touchscreen.
Navigate to "Controls" > "Battery."
Record the current battery percentage and range estimate displayed.

3. Use Tesla Mobile App

Open the Tesla app on your smartphone.
Go to the "Battery" section to review detailed metrics such as charging cycles, current health status, and any alerts.
Take note of any recommendations provided by the app.

4. Inspect Battery Physically (if applicable)

If comfortable and safe, check for any physical signs of damage on the battery pack.
Look for bulging, leaks, or corrosion around the battery terminals.

5. Generate Battery Health Report (if available)

Access the Tesla service tools if you have access via your account or visit a Tesla service center.
Request a comprehensive battery health report to check for capacity degradation and any potential issues.