The Keysight E4370A Multi-Cell Charger/Discharger (MCCD) Mainframe is a modular, expandable system for precision battery testing and formation of lithium-ion and lithium-polymer cells in manufacturing. The mainframe accommodates up to four charger/discharger cards, enabling simultaneous charge and discharge of up to 256 individual cells with independent control and measurement per channel. Each channel operates at up to 5 V with current ratings dependent on installed card type.
Technical Specifications
Mainframe Architecture
• Accepts up to four charger/discharger cards
• Supports up to 256 simultaneous cell operations when fully populated
• Requires external user-supplied fixed 24 V power supply
• Fully programmable with up to 99 configurable steps in any combination
• Step types: charging, resting, and discharging sequences
• Automated self-calibration and data compression
E4374A Charger/Discharger Card
• 64 channels per card
• 5 V, 2 A per channel
• Constant current and constant voltage charging modes
• Constant current discharge capability
E4375A Charger/Discharger Card
• 64 channels per card
• 5 V, 3 A per channel
• Constant current and constant voltage charging modes
• Constant current discharge capability
– Key Features
• Independent channel-level control and measurement
• Distributed LAN control for autonomous multi-unit operation
• Local control via digital and serial ports for manufacturing automation integration
• Software-modifiable charge/discharge sequences without hardware reconfiguration
• Integrated safety features throughout system architecture
• Automated data collection and retrieval
– System Integration
Optional Component
• E4371A Powerbus Load: Manages discharge of two fully loaded MCCD mainframes
Control Interfaces
• LAN for distributed control and data retrieval
• Digital ports for local automation equipment control
• Serial ports for local automation equipment control
