Have you always wondered how healthy your Tesla's battery really is? With the new software update 2025.8.3, Tesla introduces the long-awaited Battery Health Test directly into the main user interface - a must for anyone who wants to closely monitor the condition and energy retention of their high-voltage battery.
New Features in Update 2025.8.3
With this update, Tesla owners can now easily diagnose the battery condition themselves. The test can be started via Controls > Service > Battery Health, providing important information on energy retention.
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Direct Access:
- The Battery Health Test is now available directly in the main menu, without the need to go through service mode or external diagnostic services.
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Recalibration of the BMS:
- The test recalibrates the Battery Management System (BMS), which can lead to a more accurate range display.
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Test Duration:
- The test requires your Tesla to be connected to an AC charging port for up to 16 hours to complete the diagnosis.
Benefits of the Battery Health Test
Tesla owners often had concerns when the displayed range differed from the advertised one - whether in percentage or in kilometers/miles. The discrepancy often arises from different driving habits or environmental influences. However, with the new Battery Health Test, you get clear insights into the current state of your battery and learn how much energy it can still store compared to its new condition.
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More Accurate Range Display:
- After the test, the range of your vehicle is recalibrated, providing you with a more accurate display.
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Energy Consumption Adjustment:
- Additionally, new energy consumption intervals have been introduced in the Energy App, which are tailored to your usage behavior.
Further Software Updates
In addition to the Battery Health Test, the update 2025.8.3 also includes minor improvements:
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Energy Consumption History:
- You can now view your last 10, 100, or 200 miles (15, 150, or 300 kilometers) of energy consumption in the Consumption section and delete the history if needed.
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Security updates:
- Important security fixes and optimizations have also been implemented.
Conclusion and Outlook
With the new Battery Health Test, Tesla sets another milestone in terms of transparency and user-friendliness. This feature not only provides you as a Tesla owner with assurance about the condition of your battery, but also improves the accuracy of the range display through automatic recalibration of the BMS. It remains exciting to observe how Tesla continues to optimize the everyday life and satisfaction of its customers through such innovations.
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