The Keysight BT2202A is a modular charge-discharge chassis that serves as the mainframe for Li-ion cell formation and lifetime cycling test systems. It accepts up to eight BT2204B or BT2205A modules, enabling configurations from ±6 A to ±800 A across up to 256 cells or channels per chassis. The system regenerates power for improved efficiency and integrates LAN (LXI Core) and USB connectivity for direct control and data acquisition.
Technical Specifications
• Input Power: 400 VAC or 480 VAC, 3-phase
• Module Capacity: 8 slots for BT2204B or BT2205A modules
• Maximum Cell Voltage: 6.0 V
• Maximum Cell Current: ±800 A (achieved through multi-module paralleling)
• Total Channels: Up to 256 cells or channels per chassis
• BT2204B Module: 32 channels per module, ±6.25 A per channel, 27.34 W per channel
• BT2205A Module: 2 channels per module, ±100 A per channel, 437.5 W per channel
• Paralleling Options: Two BT2204B channels yield ±12.5 A; three channels yield ±18.75 A. Two BT2205A channels yield ±200 A; up to eight channels across four modules yield ±800 A
– Key Features
• Flexible modular architecture supports mixed-module configurations
• Regenerative power capability enhances system efficiency
• Up to 256 unique sequences, each containing up to 50 steps
• Step types: charge, discharge, pre-charge, rest state, or DC internal resistance (DCIR) measurement
• DCIR utilizes user-defined DC pulse methodology
• Up to 24 test conditions per step, evaluated every second
• Monitored parameters: Voltage, Current, Power, Amp•Hours, Watt•Hours, ΔV/Δt, ΔI/Δt, ΔV, ΔI
– Typical Applications
• Research and development of advanced battery chemistries
• Manufacturing quality control and cell formation
• Electric vehicle battery validation
• Portable electronics battery lifecycle testing
– Compatibility & Integration
• Compatible with BT2204B and BT2205A charge-discharge modules
• BT2200 Charge-Discharge Platform evaluation software support
• LAN and USB control interfaces
