EA-BT 20010-1000 4U WC Water-Cooled Regenerative Battery Tester

The EA-BT 20010-1000 4U WC is a professional 4U water cooled battery tester from the EA-BT 20000 series by EA Elektro-Automatik, serving as a high-performance bidirectional battery tester and two quadrant battery tester that integrates battery charge discharge tester functions. As a regenerative energy recovery battery tester, it feeds discharged energy back into the grid with up to 93.5% efficiency, acting as a grid regenerative electronic load to reduce energy costs and heat generation, making it an energy saving battery tester and low heat battery tester. This 4U rack mount battery tester 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 global industrial power grids. Its DC output delivers 0-10 V DC voltage, 0-1000 A maximum current and 0-10000 W power range, with a minimum sink voltage of 0.65 V for full current output, and features flexible autoranging operation for versatile testing scenarios. It offers ultra-low output ripple with ≤25 mV rms (300 kHz bandwidth) and ≤320 mV pp (20 MHz bandwidth), paired with 25380 μF output capacitance for stable power delivery. The device employs digital regulation with 16 bit ADCs and DACs, 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. It supports scalable parallel operation via Share-Bus and Master-Auxiliary bus, allowing up to 64 units of the same series to be connected for high current battery testing systems with symmetrical load sharing. Integrated battery test functions include CC-CV discharge characteristics, ampere hour counter, dedicated battery test mode and battery simulation, 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 testing, battery SOH testing for second-life assessment, battery EOL testing and battery recycling testing. Equipped with stainless steel water cooling for enhanced thermal management, it has dimensions of 483 mm (W) x 177 mm (H) x 668 mm (D) and a weight of 56 kg, with an IP20 ingress protection rating and operating temperature range of 0-50 °C (rated power permanently available up to +40 °C). It includes comprehensive protective functions: adjustable OVP (0-110% nominal voltage), OCP (0-110% nominal current), OPP (0-110% nominal power) and overtemperature protection, and complies with EN 61010-1, IEC 61010-1, UL 61010-1 safety standards and EN 55011 Class A EMC requirements.

Key Features

• Water-Cooled Regenerative Design: Stainless steel water cooling system, 93.5% grid energy recovery efficiency, reduces heat output and energy consumption for continuous high-current testing.
• Wide Global AC Compatibility: 3-phase 208V±10% / 380-480V±10% input, 45-65Hz frequency, typical 0.99 power factor and <10mA leakage current.
• High-Current Low-Ripple Output: 0-10V DC, 0-1000A, 10kW power, ≤25mV rms ripple, 25380μF output capacitance, 0.65V minimum sink voltage for full current.
• Precision Digital Regulation: 16-bit ADCs/DACs, ≤0.05% FS voltage accuracy, ≤0.1% FS current accuracy, supports CV/CC/CP/CR modes with fast crossover.
• Fast Dynamic Performance: CV rise/fall time ≤10ms, CC rise/fall time ≤2ms, adapts to rapid changes in battery testing conditions.
• Galvanically Isolated Interfaces: USB, 1G Ethernet, 1ms EtherCAT, CAN FD, plus digital I/O and temperature sensor inputs for safe industrial integration.
• Scalable Parallel Operation: Up to 64 units parallel via Share-Bus and Master-Auxiliary bus, enabling high-power high-current test systems.
• Integrated Battery Test Suite: CC-CV discharge, ampere hour counter, battery test mode and battery simulation for comprehensive evaluation.
• Reliable Protection & Compliance: Adjustable OVP/OCP/OPP/OT protection, meets EN 61010-1 safety and EN 55011 Class A EMC standards, IP20 rating.
• Versatile Industrial Applications: Optimized for EV/automotive battery testing, cell/module/pack validation, SOH/EOL testing and battery recycling.