High-performance EA-BT 20000 4U series battery testers with regenerative energy recovery and wide 10–2000V voltage, 40–1000A current, and 30kW autoranging power in a 4U 19‑inch rack enclosure. Featuring active PFC, up to 96% efficiency, a 5″ TFT touch panel, integrated battery test modes with Ah counter, and high‑speed EtherCAT, CAN FD, USB, and Ethernet interfaces, they are expertly suited for electro mobility battery testing, battery recycling, end‑of‑line testing, and high‑power industrial battery charge/discharge applications demanding energy efficiency and precision.

Model

BT 20010-1000, BT 20060-1000, BT 20080-1000, BT 20200-420, BT 20360-240, BT 20500-180, BT 20920-120, BT 21000-80, BT 21500-60, BT 22000-40

DC Power (Max/Derated)

10000W / 10000W, 30000W / 18000W

DC Voltage (CV Range)

0-10V, 0-60V, 0-80V, 0-200V, 0-360V, 0-500V, 0-920V, 0-1000V, 0-1500V, 0-2000V

DC Current (CC Range)

0-40A, 0-60A, 0-80A, 0-120A, 0-180A, 0-240A, 0-420A, 0-1000A

AC Input

208-480V AC, 3ph (active PFC)

Type

Programmable Battery Tester with Regenerative Energy Recovery

External Control

EtherCAT, CAN FD, Ethernet, USB, Digital I/O, Sensor Inputs

Housing

19" 4U Rackmount

Special Features

Regenerative Energy Recovery up to 96.8%, Autoranging, Battery Test Mode with Ah Counter, CC-CV Charge/Discharge, Master-Auxiliary Bus (up to 64 units), Share Bus, SCPI, ModBus RTU, Optional Water Cooling

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Description

Model Overview – All Values

Model	DC Power (Max/Derated)	DC Voltage (CV Range)	DC Current (CC Range)	AC Input (Active PFC)	Type	External Control	Housing	Special Features
BT 20010-1000	10000W / 10000W	0-10V	0-1000A	208-480V AC, 3ph	Programmable Battery Tester with Regenerative Energy Recovery	EtherCAT, CAN FD, Ethernet, USB, Digital I/O, Sensor Inputs	19" 4U Rackmount	Regenerative Energy Recovery up to 93.5%, Autoranging, Battery Test Mode with Ah Counter, CC-CV Charge/Discharge, Master-Auxiliary Bus (up to 64 units/1920kW), Share Bus, SCPI & ModBus, Optional Water Cooling
BT 20060-1000	30000W / 18000W	0-60V	0-1000A	208-480V AC, 3ph	Programmable Battery Tester with Regenerative Energy Recovery	EtherCAT, CAN FD, Ethernet, USB, Digital I/O, Sensor Inputs	19" 4U Rackmount	Regenerative Energy Recovery up to 94.5%, Autoranging, Battery Test Mode with Ah Counter, CC-CV Charge/Discharge, Master-Auxiliary Bus (up to 64 units/1920kW), Share Bus, SCPI & ModBus, Optional Water Cooling
BT 20080-1000	30000W / 18000W	0-80V	0-1000A	208-480V AC, 3ph	Programmable Battery Tester with Regenerative Energy Recovery	EtherCAT, CAN FD, Ethernet, USB, Digital I/O, Sensor Inputs	19" 4U Rackmount	Regenerative Energy Recovery up to 95.0%, Autoranging, Battery Test Mode with Ah Counter, CC-CV Charge/Discharge, Master-Auxiliary Bus (up to 64 units/1920kW), Share Bus, SCPI & ModBus, Optional Water Cooling
BT 20200-420	30000W / 18000W	0-200V	0-420A	208-480V AC, 3ph	Programmable Battery Tester with Regenerative Energy Recovery	EtherCAT, CAN FD, Ethernet, USB, Digital I/O, Sensor Inputs	19" 4U Rackmount	Regenerative Energy Recovery up to 95.1%, Autoranging, Battery Test Mode with Ah Counter, CC-CV Charge/Discharge, Master-Auxiliary Bus (up to 64 units/1920kW), Share Bus, SCPI & ModBus, Optional Water Cooling
BT 20360-240	30000W / 18000W	0-360V	0-240A	208-480V AC, 3ph	Programmable Battery Tester with Regenerative Energy Recovery	EtherCAT, CAN FD, Ethernet, USB, Digital I/O, Sensor Inputs	19" 4U Rackmount	Regenerative Energy Recovery up to 95.5%, Autoranging, Battery Test Mode with Ah Counter, CC-CV Charge/Discharge, Master-Auxiliary Bus (up to 64 units/1920kW), Share Bus, SCPI & ModBus, Optional Water Cooling
BT 20500-180	30000W / 18000W	0-500V	0-180A	208-480V AC, 3ph	Programmable Battery Tester with Regenerative Energy Recovery	EtherCAT, CAN FD, Ethernet, USB, Digital I/O, Sensor Inputs	19" 4U Rackmount	Regenerative Energy Recovery up to 96.0%, Autoranging, Battery Test Mode with Ah Counter, CC-CV Charge/Discharge, Master-Auxiliary Bus (up to 64 units/1920kW), Share Bus, SCPI & ModBus, Optional Water Cooling
BT 20920-120	30000W / 18000W	0-920V	0-120A	208-480V AC, 3ph	Programmable Battery Tester with Regenerative Energy Recovery	EtherCAT, CAN FD, Ethernet, USB, Digital I/O, Sensor Inputs	19" 4U Rackmount	Regenerative Energy Recovery up to 96.0%, Autoranging, Battery Test Mode with Ah Counter, CC-CV Charge/Discharge, Master-Auxiliary Bus (up to 64 units/1920kW), Share Bus, SCPI & ModBus, Optional Water Cooling
BT 21000-80	30000W / 18000W	0-1000V	0-80A	208-480V AC, 3ph	Programmable Battery Tester with Regenerative Energy Recovery	EtherCAT, CAN FD, Ethernet, USB, Digital I/O, Sensor Inputs	19" 4U Rackmount	Regenerative Energy Recovery up to 95.2%, Autoranging, Battery Test Mode with Ah Counter, CC-CV Charge/Discharge, Master-Auxiliary Bus (up to 64 units/1920kW), Share Bus, SCPI & ModBus, Optional Water Cooling
BT 21500-60	30000W / 18000W	0-1500V	0-60A	208-480V AC, 3ph	Programmable Battery Tester with Regenerative Energy Recovery	EtherCAT, CAN FD, Ethernet, USB, Digital I/O, Sensor Inputs	19" 4U Rackmount	Regenerative Energy Recovery up to 96.8%, Autoranging, Battery Test Mode with Ah Counter, CC-CV Charge/Discharge, Master-Auxiliary Bus (up to 64 units/1920kW), Share Bus, SCPI & ModBus, Optional Water Cooling
BT 22000-40	30000W / 18000W	0-2000V	0-40A	208-480V AC, 3ph	Programmable Battery Tester with Regenerative Energy Recovery	EtherCAT, CAN FD, Ethernet, USB, Digital I/O, Sensor Inputs	19" 4U Rackmount	Regenerative Energy Recovery up to 96.8%, Autoranging, Battery Test Mode with Ah Counter, CC-CV Charge/Discharge, Master-Auxiliary Bus (up to 64 units/1920kW), Share Bus, SCPI & ModBus, Optional Water Cooling

30-Second Fit Check

Need an energy-efficient battery tester for high-power applications? Models cover 10V to 2000V, with currents up to 1000A.
DC power: 10kW or 30kW per unit with fully autoranging output; regenerative energy recovery up to 96.8%.
Two-quadrant operation: seamless charge and discharge with CC-CV characteristics and integrated Ah counter.
Built-in 5" TFT touch panel with intuitive battery test modes; supports master-auxiliary parallel operation for up to 64 units (1920kW).
Comprehensive protection: OVP, OCP, OPP, OT; three temperature sensor inputs for battery monitoring during test.

What It Is + Why It Matters

Dedicated battery tester with regenerative energy recovery in 4U 19" rack format, combining charger and electronic load functions for complete battery charge/discharge cycling.
The autoranging output stage delivers maximum voltage at lower current or maximum current at lower voltage – ideal for testing various battery types and chemistries.
Integrated battery test functionality with CC-CV charge/discharge profiles, ampere-hour (Ah) counter, and configurable cut-off conditions for automated test sequences.
High-speed communication interfaces: EtherCAT with 1 ms cycle time, CAN FD, 1 Gbit Ethernet, USB, plus 3 digital inputs, 3 relay outputs, and 3 temperature sensor inputs.
Optional water cooling in stainless steel for demanding environments; master-auxiliary bus enables scalable battery test systems up to 240kW in a single cabinet.

Note: In discharge mode, the device recovers energy to the grid with up to 96.8% efficiency; consult local utility regulations and consider a grid protection device. 30kW models derate to 18kW at 208V AC input. Must be installed in a closed 19" rack with adequate ventilation or optional water cooling.

Key Specs

AC input: 208-480V AC, 3-phase, active PFC, 45-65Hz; derating to 18kW at 208V AC input for 30kW models.
DC voltage range: 0-10V up to 0-2000V; DC current: 0-40A up to 0-1000A.
DC power: 10kW (BT 20010-1000) or 30kW per unit; autoranging with adjustable power limit.
Energy recovery efficiency: up to 96.8%; regulation accuracy: CV ≤0.05%, CC ≤0.1%.
Display: 5" TFT colour touchscreen (800x480) with two rotary knobs; 16-bit ADCs and DACs for precision measurement.
Interfaces: EtherCAT (1 ms), CAN FD, 1 Gbit Ethernet, USB, Digital I/O (3x In, 3x Out), 3x Temperature Sensor Inputs, USB Host (front).
Master-Auxiliary bus + Share bus for up to 64 units parallel operation (1920kW total).
Dimensions (WxHxD): 19" x 4U x 668mm (enclosure), 802mm overall depth; Weight: 50 kg (air-cooled), 56 kg (water-cooled).

Integration & Installation

DC output via copper busbars on the rear panel; vertical connection rails available for easy parallel setup in high-power systems.
AC mains via 5-pole connector (3-phase 208-480V AC); automatic grid voltage detection with derating at 208V for 30kW models.
Master-Auxiliary bus connection via standard CAT5 patch cables; Share bus per unit for balanced current distribution in parallel systems.
Optional water cooling with stainless steel construction for demanding thermal environments; water inlet/outlet connections on the rear panel.
Must be installed in a closed 19" rack/cabinet with lockable doors; ensure adequate ventilation or water cooling and grid compliance for energy recovery.

Best for / Not for

Best for: Electric vehicle battery module/pack testing, battery end-of-line (EOL) testing, battery state-of-health (SOH) assessment, battery recycling and deep discharge, industrial battery charge/discharge cycling, and any application requiring automated, energy-efficient battery testing with regenerative energy recovery.
Not for: Applications requiring only a unidirectional power supply or load without battery test functionality, environments without three-phase AC supply, or locations without proper grid compliance for energy feedback.

Selection Checklist + RFQ

Choose voltage/current model matching your battery specifications (10V, 60V, 80V, 200V, 360V, 500V, 920V, 1000V, 1500V, or 2000V).
Verify total power demand ≤ 10kW or 30kW per unit, noting autoranging characteristics and derating to 18kW at 208V AC input for 30kW models.
Confirm three-phase AC supply availability (208-480V AC) and plan for proper circuit protection and grid compliance.
Select cooling option: standard forced air cooling or optional water cooling (stainless steel).
For multi-unit parallel systems, specify total system power and number of units; ensure all units have same voltage rating.
Plan for energy recovery grid compliance and possible grid protection device installation.