EA-BT 20500-60 Triple 4U WC Regenerative Battery Tester

The EA-BT 20500-60 Triple 4U WC is a high-performance programmable dc power supply and regenerative battery tester from EA Elektro-Automatik. As a versatile two quadrant battery tester and battery charge discharge tester, it functions as both a charger and an electronic load, supporting regenerative energy recovery that feeds discharge energy back to the grid with up to 96.0% efficiency—making it an energy-efficient solution for TPS power supply applications, dc power supplies setups, and programmable power supply needs. This 4U water cooled battery tester features 3 independent channels, delivering 0-500V voltage range, 0-60A current range, and 10000W power per channel, with a total device power of up to 30000W (derated to 18000W at 208V AC input). It offers autoranging DC output for flexible voltage and current combinations, and integrates typical battery tester functions including CC-CV discharge characteristics and an ampere hour counter for battery capacity testing. The device supports 208V-480V 3-phase AC input with active power factor correction achieving a typical 0.99 power factor, and features 18 bit digital regulation with selectable voltage controller speeds. It delivers precise measurements with ≤0.05% FS voltage accuracy and ≤0.1% FS current accuracy, along with ≤70mV rms CV ripple and ≤350mV pp CV ripple, and a 2.5V minimum sink voltage for reliable low-voltage operation. Equipped with galvanically isolated interfaces including 1 ms EtherCAT, 1 Gbit/s Ethernet, USB, and CAN FD, it enables seamless industrial communication and integration into automated test systems. The triple channel water cooled battery tester supports parallel operation of its three channels for higher power and current, and can be combined with multiple units via Share-Bus and Master-Auxiliary bus for scalable systems up to 240kW. Ideal for electro mobility battery tester applications, it excels at battery module tester, battery pack tester, high voltage battery tester, battery SOH tester, battery EOL tester, and battery recycling tester tasks, addressing questions of how can i test a power supply and battery performance with reliable, reproducible results. Its stainless steel water cooling system ensures stable operation in demanding industrial environments, and it meets strict safety and EMC standards including EN 61010-1 and EN 55011 Class A.

Key Features

• Regenerative Two-Quadrant Operation: Serves as both charger and electronic load, with grid energy recovery up to 96.0% efficiency to reduce energy costs and heat generation.
• Triple-Channel High-Power Performance: 3 independent channels with 0-500V voltage, 0-60A current, 10000W per channel, and 30000W total power (18000W at 208V input).
• Precise Regulation & Measurement: 18-bit digital regulation, ≤0.05% FS voltage accuracy, ≤0.1% FS current accuracy, ≤70mV rms/350mV pp CV ripple, and 2.5V minimum sink voltage.
• Flexible Autoranging Output: Constant-power autoranging DC output supports wide voltage/current combinations, with CV/CC/CP/CR regulation modes and fast crossover.
• Industrial-Grade Interfaces: Galvanically isolated 1 ms EtherCAT, 1 Gbit/s Ethernet, USB, CAN FD, plus digital I/O and temperature sensor inputs for automation.
• Scalable Parallel Operation: Internal channel parallel and multi-unit parallel via Share-Bus/Master-Auxiliary bus for systems up to 240kW in a single cabinet.
• Stainless Steel Water Cooling: Efficient water cooling system ensures stable continuous operation in high-power, demanding industrial environments.
• Comprehensive Battery Testing: Integrated CC-CV discharge, ampere hour counter, and protection functions for cell/module/pack testing, SOH/EOL assessment, and battery recycling.
• Global Compatibility: Wide 208V-480V 3-phase AC input with auto-voltage adjustment and 0.99 typical power factor for worldwide use.