EA-BT 20010-400 Triple 4U 3-Channel Regenerative Battery Tester

The EA-BT 20010-400 Triple 4U is a professional 3 channel battery tester and triple output battery tester from the BT 20000 Triple series by Elektro-Automatik, designed as a 4U rack mount battery tester for high-throughput industrial battery testing. As a two quadrant battery tester and bidirectional battery tester, it integrates both battery charge tester and battery discharge tester functions, operating as a grid regenerative electronic load with regenerative energy recovery into the grid during discharge, delivering up to 90.0% sink/source efficiency to reduce energy costs and heat generation, making it an energy saving battery tester, low heat battery tester and cost saving battery tester. It also functions as a programmable dc power supply and programmable dc power source for flexible industrial power applications. This industrial battery test system features a wide 3-phase AC input range of 208 V ±10% and 380-480 V ±10%, supporting 45-65Hz frequency, with active power factor correction achieving a typical 0.99 power factor and <10mA leakage current, compatible with most global power grids. It delivers 3 independent DC channels, each providing 0-10 V DC voltage, 0-400 A current and 0-4000 W power, with a total device power range of 0-12000 W. Each channel offers ultra-low output ripple with ≤25 mV rms (300 kHz bandwidth) and ≤150 mV pp (20 MHz bandwidth), paired with 8460 μF output capacitance per channel and a 0.5 V minimum sink voltage for full current output. The device employs 18-bit high-resolution digital regulation with selectable voltage controller speeds, providing ≤0.05% FS voltage measurement accuracy and ≤0.1% FS current measurement accuracy, supporting CV, CC, CP, CR regulation modes with fast crossover for high accuracy battery testing. It delivers fast dynamic response with CV rise/fall time ≤10 ms and CC rise/fall time ≤2 ms, meeting the demands of fast response battery testing. All communication interfaces are galvanically isolated, including USB, 1Gbit/s Ethernet, EtherCAT (1 ms communication speed), CAN FD, and a front USB host for data logging, plus 3 configurable digital inputs, 3 relay outputs and 3 temperature sensor inputs per channel. It supports flexible parallel operation: up to 2 units can be paralleled per channel, or all 3 channels of a single device can be grouped externally to deliver up to 1200 A total current. Integrated battery test functions include CC-CV discharge characteristics, battery ampere hour counter, dedicated battery test modes and alarm management, making it suitable as a battery cell tester, battery module tester and battery pack tester. It is widely applied in EV battery testing, automotive battery test equipment, battery SOH testing equipment for second-life assessment, battery EOL testing equipment and battery recycling tester applications. The standard version uses temperature-controlled forced air cooling, with dimensions of 483 mm (W) x 177 mm (H) x 668 mm (D) and a weight of 50 kg; optional stainless steel water cooling is available, increasing the weight to 56 kg. It has an IP20 ingress protection rating, operates in 0-50 °C ambient temperature (rated power permanently available up to +40 °C), and includes comprehensive protective functions: adjustable OVP (0-110% nominal voltage), OCP (0-110% nominal current), OPP (0-110% nominal power) and overtemperature protection. It complies with EN 61010-1, IEC 61010-1, UL 61010-1 safety standards and EN 55011 Class A EMC requirements, with ±1200 V DC channel-to-channel isolation for safe multi-channel testing.

Key Features

• 3 Independent Test Channels: 4U rack mount design, 3 isolated channels with 0-10V/400A/4kW per channel, 12kW total power, supporting parallel grouping for up to 1200A total current.
• Regenerative Energy Recovery: 90.0% sink/source efficiency, feeds discharge energy back to the grid, reducing energy costs and cooling requirements.
• Wide Global AC Compatibility: 3-phase 208V±10% / 380-480V±10% input, 45-65Hz frequency, typical 0.99 power factor and <10mA leakage current.
• Low-Ripple Precision Output: ≤25mV rms / ≤150mV pp ripple, 8460μF per-channel capacitance, 0.5V minimum sink voltage for full current operation.
• 18-Bit High-Resolution Regulation: Selectable voltage control speeds, ≤0.05% FS voltage accuracy, ≤0.1% FS current accuracy, supports CV/CC/CP/CR modes.
• Fast Dynamic Response: CV rise/fall time ≤10ms, CC rise/fall time ≤2ms, adapts to rapid changes in battery testing conditions.
• Flexible Scalability: Up to 2 units parallel per channel via Share-Bus/Master-Auxiliary bus, enabling high-power multi-channel test systems.
• Galvanically Isolated Interfaces: USB, 1G Ethernet, 1ms EtherCAT, CAN FD, plus per-channel digital I/O and temperature sensor inputs.
• Integrated Battery Test Suite: CC-CV discharge, ampere hour counter, alarm management, optimized for cell/module/pack validation.
• Reliable Protection & Compliance: Adjustable OVP/OCP/OPP/OT protection, EN 61010-1 safety, EN 55011 Class A EMC, IP20 rating.
• Versatile Cooling Options: Standard temperature-controlled forced air cooling, optional stainless steel water cooling for continuous high-load operation.
• Broad Industrial Applications: Ideal for EV/automotive battery testing, SOH/EOL assessment, battery recycling and multi-channel production testing.