Ultra-compact EA-BT 20000 Triple 4U series 3-channel battery testers with regenerative energy recovery and wide 10–920V voltage, 40–600A current, and 4–10kW per channel autoranging power in a 4U 19‑inch rack enclosure. Featuring three independent, galvanically isolated channels that can be grouped for up to 1800A, active PFC, up to 96% efficiency, built‑in battery test modes with Ah counter, and high‑speed EtherCAT, CAN FD, USB, and Ethernet interfaces, they are expertly suited for multi‑cell battery testing, electro mobility battery module/pack validation, battery recycling, and high‑density automated test systems demanding maximum channel density and energy efficiency.

Model

BT 20010-400 Triple, BT 20010-600 Triple, BT 20060-340 Triple, BT 20080-340 Triple, BT 20200-140 Triple, BT 20360-80 Triple, BT 20500-60 Triple, BT 20920-40 Triple

Total Device Power (Max/Derated)

12000W / 12000W, 18000W / 18000W, 30000W / 18000W

Per Channel Voltage (CV Range)

0-10V, 0-60V, 0-80V, 0-200V, 0-360V, 0-500V, 0-920V

Per Channel Current (CC Range)

0-40A, 0-60A, 0-80A, 0-140A, 0-340A, 0-400A, 0-600A

Per Channel Power (Max)

4000W, 6000W, 10000W

AC Input

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

Type

Programmable Battery Tester with Regenerative Energy Recovery (3-Channel)

External Control

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

Housing

19" 4U Rackmount

Special Features

Regenerative Energy Recovery up to 96%, Autoranging, Battery Test Mode with Ah Counter, CC-CV Charge/Discharge, Internal Channel Grouping (up to 1800A), Master-Auxiliary Bus (up to 64 units/1920kW), Share Bus, SCPI & ModBus RTU, Optional Water Cooling

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Description

Model Overview – All Values

Model	Total Device Power (Max/Derated)	Per Channel Voltage (CV)	Per Channel Current (CC)	Per Channel Power (Max)	AC Input (Active PFC)	Type	External Control	Special Features
BT 20010-400 Triple	12000W / 12000W	0-10V	0-400A	4000W	208-480V AC, 3ph	Programmable Battery Tester with Regenerative Energy Recovery (3-Channel)	EtherCAT, CAN FD, Ethernet, USB, Digital I/O, Sensor Inputs	Regenerative up to 90.0%, Autoranging, Battery Test Mode with Ah Counter, CC-CV Charge/Discharge, Internal Channel Grouping (up to 1800A), Master-Auxiliary Bus (up to 64 units), Share Bus, SCPI & ModBus, Optional Water Cooling
BT 20010-600 Triple	18000W / 18000W	0-10V	0-600A	6000W	208-480V AC, 3ph	Programmable Battery Tester with Regenerative Energy Recovery (3-Channel)	EtherCAT, CAN FD, Ethernet, USB, Digital I/O, Sensor Inputs	Regenerative up to 90.5%, Autoranging, Battery Test Mode with Ah Counter, CC-CV Charge/Discharge, Internal Channel Grouping (up to 1800A), Master-Auxiliary Bus (up to 64 units), Share Bus, SCPI & ModBus, Optional Water Cooling
BT 20060-340 Triple	30000W / 18000W	0-60V	0-340A	10000W	208-480V AC, 3ph	Programmable Battery Tester with Regenerative Energy Recovery (3-Channel)	EtherCAT, CAN FD, Ethernet, USB, Digital I/O, Sensor Inputs	Regenerative up to 94.5%, Autoranging, Battery Test Mode with Ah Counter, CC-CV Charge/Discharge, Internal Channel Grouping (up to 1800A), Master-Auxiliary Bus (up to 64 units), Share Bus, SCPI & ModBus, Optional Water Cooling
BT 20080-340 Triple	30000W / 18000W	0-80V	0-340A	10000W	208-480V AC, 3ph	Programmable Battery Tester with Regenerative Energy Recovery (3-Channel)	EtherCAT, CAN FD, Ethernet, USB, Digital I/O, Sensor Inputs	Regenerative up to 95.0%, Autoranging, Battery Test Mode with Ah Counter, CC-CV Charge/Discharge, Internal Channel Grouping (up to 1800A), Master-Auxiliary Bus (up to 64 units), Share Bus, SCPI & ModBus, Optional Water Cooling
BT 20200-140 Triple	30000W / 18000W	0-200V	0-140A	10000W	208-480V AC, 3ph	Programmable Battery Tester with Regenerative Energy Recovery (3-Channel)	EtherCAT, CAN FD, Ethernet, USB, Digital I/O, Sensor Inputs	Regenerative up to 95.1%, Autoranging, Battery Test Mode with Ah Counter, CC-CV Charge/Discharge, Internal Channel Grouping (up to 1800A), Master-Auxiliary Bus (up to 64 units), Share Bus, SCPI & ModBus, Optional Water Cooling
BT 20360-80 Triple	30000W / 18000W	0-360V	0-80A	10000W	208-480V AC, 3ph	Programmable Battery Tester with Regenerative Energy Recovery (3-Channel)	EtherCAT, CAN FD, Ethernet, USB, Digital I/O, Sensor Inputs	Regenerative up to 95.5%, Autoranging, Battery Test Mode with Ah Counter, CC-CV Charge/Discharge, Internal Channel Grouping (up to 1800A), Master-Auxiliary Bus (up to 64 units), Share Bus, SCPI & ModBus, Optional Water Cooling
BT 20500-60 Triple	30000W / 18000W	0-500V	0-60A	10000W	208-480V AC, 3ph	Programmable Battery Tester with Regenerative Energy Recovery (3-Channel)	EtherCAT, CAN FD, Ethernet, USB, Digital I/O, Sensor Inputs	Regenerative up to 96.0%, Autoranging, Battery Test Mode with Ah Counter, CC-CV Charge/Discharge, Internal Channel Grouping (up to 1800A), Master-Auxiliary Bus (up to 64 units), Share Bus, SCPI & ModBus, Optional Water Cooling
BT 20920-40 Triple	30000W / 18000W	0-920V	0-40A	10000W	208-480V AC, 3ph	Programmable Battery Tester with Regenerative Energy Recovery (3-Channel)	EtherCAT, CAN FD, Ethernet, USB, Digital I/O, Sensor Inputs	Regenerative up to 96.0%, Autoranging, Battery Test Mode with Ah Counter, CC-CV Charge/Discharge, Internal Channel Grouping (up to 1800A), Master-Auxiliary Bus (up to 64 units), Share Bus, SCPI & ModBus, Optional Water Cooling

30-Second Fit Check

Need a multi-channel battery tester with energy recovery? Three independent, galvanically isolated channels per 4U unit.
Per channel: 10V to 920V, up to 600A, and 4kW to 10kW autoranging; total device power up to 30kW.
Seamless two-quadrant charge/discharge with CC-CV profiles and integrated Ah counter for each channel.
Internal channel grouping: combine the three channels externally for up to 1800A in a single channel.
Comprehensive protection per channel: OVP, OCP, OPP, OT; three temperature sensor inputs per channel for battery monitoring.

What It Is + Why It Matters

Dedicated 3-channel battery tester with regenerative energy recovery in 4U 19" rack format, combining charger and electronic load functions per channel for complete battery charge/discharge cycling.
Each channel features an autoranging output stage delivering maximum voltage at lower current or maximum current at lower voltage – ideal for testing various battery types and chemistries simultaneously.
Integrated battery test functionality with CC-CV charge/discharge profiles, ampere-hour (Ah) counter, and configurable cut-off conditions per channel for automated multi-cell test sequences.
High-speed communication interfaces per channel: EtherCAT with 1 ms cycle time, CAN FD, 1 Gbit Ethernet, USB, plus 3 digital inputs, 3 relay outputs, and 3 temperature sensor inputs per channel.
Optional water cooling in stainless steel; 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% efficiency; consult local utility regulations. 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 for 30kW models.
Per channel DC voltage: 0-10V up to 0-920V; Per channel DC current: 0-40A up to 0-600A.
Per channel DC power: 4kW, 6kW, or 10kW autoranging; total device power 12kW, 18kW, or 30kW.
Energy recovery efficiency: up to 96%; regulation accuracy: CV ≤0.05%, CC ≤0.1%.
Display: 5" TFT colour touchscreen (800x480) with two rotary knobs; 18-bit measurement resolution.
Interfaces: EtherCAT (1 ms), CAN FD, 1 Gbit Ethernet, USB, Digital I/O (3x In, 3x Out, 3x Temp) per channel, USB Host (front).
Master-Auxiliary bus + per-channel Share bus for up to 64 units parallel operation (1920kW).
Dimensions (WxHxD): 19" x 4U x 668mm (enclosure), 802mm overall depth; Weight: 50 kg (air-cooled), 56 kg (water-cooled).

Integration & Installation

Three independent DC output channels with copper blade terminals on the rear panel; each channel has its own remote sensing, Share bus, and Digital I/O connectors.
Single three-phase AC input connector (208-480V AC); automatic grid voltage detection with derating at 208V for 30kW models.
Internal channel grouping: externally connect the three channels in parallel for up to 1800A single-channel operation.
Master-Auxiliary bus and per-channel Share bus for scalable multi-unit systems; covers for contact protection included per channel.
Optional water cooling with stainless steel construction for demanding thermal environments; must be installed in a closed 19" rack with adequate ventilation or water supply.

Best for / Not for

Best for: Multi-channel electric vehicle battery cell/module testing, battery end-of-line (EOL) testing, battery state-of-health (SOH) assessment, battery recycling and deep discharge, and any application requiring three independent, galvanically isolated battery test channels with regenerative energy recovery.
Not for: Applications requiring a single channel with more than 10kW per channel, or environments without three-phase AC supply and proper grid compliance for energy feedback.

Selection Checklist + RFQ

Choose per-channel voltage/current model matching your battery specifications (10V, 60V, 80V, 200V, 360V, 500V, or 920V).
Verify per-channel power demand ≤ 4kW, 6kW, or 10kW, and total device power ≤ 12kW, 18kW, or 30kW, noting autoranging and derating at 208V.
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).
If single-channel higher current is needed, plan to externally parallel the three channels for up to 1800A.
For multi-unit parallel systems, specify total system power and number of units; ensure all channels share the same voltage rating.