Description
LAUNCH • EV battery pack cell equalizer EVB648
The EVB648 by LAUNCH is a professional-grade cell equalizer designed for technicians working on electric vehicle battery packs. It enables precise balancing of up to 48 lithium battery cells—compatible with NCM/NCA, LiFePO₄, LMO, and LTO chemistries—by monitoring and adjusting voltage discrepancies during both charge and discharge. With protections against overcurrent, overvoltage, and overtemperature, this device reduces repair costs and accelerates maintenance on EV battery modules. It includes a 10.1″ TFT display for real-time visualization and supports parameter settings specific to the battery type. Its input range spans AC 90–264 V and it offers wired (USB, TCP/IP) and wireless (Wi-Fi) communication. Dimensions: 616.5 × 349.0 × 518.3 mm; Operating temperature: -5 °C to 45 °C.
Key benefits
- Supports precise single-cell balancing across 48 channels for accurate voltage matching
- High precision voltage measurement (±0.1 % full scale ±2 mV) and reliable current control (0.1–5 A)
- Built-in safety protections: overcurrent, overvoltage, output overcurrent, overtemperature
- Data logging and visualization: pre-/post-balancing comparison, real-time monitoring, data export via Wi-Fi or USB
- Multi-chemistry compatibility: NCM/NCA, LiFePO₄, LMO, LTO with editable balancing parameters
- Sturdy design with AC wide input (90–264 V), constant current/voltage charge mode, CC+CA discharge mode
Supported protocols
- TCP/IP
- USB device mode
- Wi-Fi wireless
Supported functions
Depending on vehicle compatibility the following functions are supported:
- Balancing voltage among battery cells to ensure consistency
- Charge and discharge control with modes matched to battery type
- Real-time monitoring of individual cell voltages and balancing status
- Exporting logs and comparing cell status before and after balancing
- Automatic switching between modes based on preset parameters per battery chemistry
Included items
- 1 × EV battery pack cell equalizer (Model EVB648, LAUNCH)









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