Both LAUNCH EVP711 and LAUNCH EVT511EV are designed for EV battery service, but they handle completely different stages of Tesla battery pack repair. Rather than replacing each other, these two tools actually work together during a complete maintenance process.
LAUNCH EVP711 Battery Module Charge and Discharge Tool
The LAUNCH EVP711 is mainly used for battery module charging, discharging, and balancing operations.
For Tesla battery repairs, this becomes extremely important when replacing damaged modules inside the battery pack. New or repaired modules often have different voltage levels compared with the original battery modules. Installing them directly without balancing can create safety risks and trigger system faults.
The EVP711 allows technicians to:
Charge and discharge battery modules
Balance module voltage levels
Perform module cycling tests
Check battery module capacity and condition
This helps ensure all modules reach a compatible State of Charge before reinstallation.

LAUNCH EVT511EV Battery Airtightness Tester
The LAUNCH EVT511EV focuses on battery pack sealing and safety inspection after repair work is completed.
Once a Tesla battery pack has been opened and reassembled, maintaining perfect airtightness is critical. Moisture or water entering the battery pack can lead to corrosion, insulation failure, or even internal short circuits.
The EVT511EV uses compressed air to test the sealing condition of the battery housing and monitors pressure changes to detect leaks.
It is mainly used for:
- EV battery airtightness testing
- Leak detection after battery repair
- Water and moisture protection verification
- Battery housing sealing inspection
For Tesla vehicles, this step is essential after servicing the battery pack enclosure.

Which Tool Should You Choose
The answer depends on the type of work you perform.
Choose EVP711 if your workshop mainly handles:
- Battery module replacement
- Voltage balancing
- Module charging and discharging
- Battery capacity testing
Choose EVT511 if your main goal is:
- Airtightness inspection
- Leak detection
- Battery housing sealing verification
- Safety checks after battery repair
For professional Tesla battery repair shops, both tools are often used together to complete a full battery maintenance workflow safely and correctly.
You can also watch the official demonstrations below:
LAUNCH EVT511 EV Battery Airtightness Detector Key Features & Design Detail
LAUNCH EVP711 EV Battery Charging and Discharging Device Key Features & Design Details


