TezLabAppBattery Health - For Tesla Customer Service
The honest number for your battery.
Real capacity. Range over time. How you compare.
Battery Health for Tesla shows you what the official Tesla app doesn't - the actual numbers behind your battery, on a clean dashboard you can check in seconds.
THREE VIEWS, ONE STORY YOUR BATTERY TELLS
• Health - Real usable capacity in kWh, charge cycles, and a verdict (Excellent, Normal, Below Average) anchored to the warranty thresholds for your model and year. No vague percentage. Just the honest number.
• Range - Watch your maximum range plotted from the moment you connect. Pinch the chart to scrub through every reading and see the trend, not just whatever the dash showed yesterday.
• Fleet - See where your battery sits against every similar Tesla in the TezLab fleet - same model, same year, same trim. Top of the pack, in the middle, or somewhere else? Find out.
SHARE THE NUMBERS
Battery health, range trend, or fleet ranking - send any of them to other Tesla drivers in one tap.
MONITOR ALL YOUR TESLAS, AUTOMATICALLY
Connect more than one vehicle and we'll keep an eye on each one. Readings refresh on their own, in the background, as your car checks in - no syncs, no manual refreshes, no long-running tests.
PRIVACY-FIRST BY DESIGN
• Battery data only. Your car streams battery updates - and only battery updates - on its own schedule through Tesla Fleet Telemetry. We never poll, wake, or send commands.
• Anonymized comparison. Your VIN never shows up in anyone else's view of their own battery.
• You own the connection. Sign out from the app any time, or revoke access directly from your Tesla account.
BUY IT ONCE, KEEP IT FOREVER
No subscriptions. No monthly fees. The same purchase covers your next Tesla too.
What's included:
• Real usable capacity in kWh
• Range over time
• Comparison vs. similar Teslas
• Charge cycles + verdict
• Multi-vehicle monitoring
• Share with other drivers
SUPPORTED VEHICLES
All Model 3, Model Y, and Cybertruck. Model S and Model X from 2021 onward. Pre-2021 Model S/X with MCU2. MCU1 Model S/X are not supported.
Requires a Tesla account.
ABOUT TEZLAB
We make the #1 app for Tesla drivers, and Battery Health is one of our apps. Your percentile comes from anonymized data across our wider TezLab community.
Stop guessing about a number that matters.
Battery Health - For Tesla App Comments & Reviews
Battery Health - For Tesla Positive Reviews
Great AppLove it! Please add widgets though for home screen and lock screen..Version: 2026.21
Very solid!Perfect. App is super clean and gives me (and more) battery info. I love the how I compare to fleet data. Highly recommend..Version: 2026.25
Simple but not fully accurateService response good. Picked wrong kWh total for MY. Don’t know if I believe the reports it states on fleet numbers. Good for general info..Version: 2026.21
Really EpicJust what I wanted. Was easy to connect and gave me the battery numbers. The trend info is really cool Great value..Version: 2026.25
😍😍😍Love the UI, good job to the team at TezLab! Would really love it for the car UI in the app to reflect the one in my app and not the UI from the VIN.Version: 2026.20
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