Chroma 17020 Regenerative Battery Pack

17020 Regenerative Battery Pack Test System

Key Features

  • Regenerative battery energy discharge
    • Energy saving
    • Environment protection
    • Low heat output
  • Channels paralleled for higher currents
  • Charge / discharge mode (CC, CV, CP)
    • Constant current
    • Constant voltage
    • Constant power
  • Driving cycle simulation
  • High precision measurement accuracy
  • Fast current conversion
  • Smooth current without over shoot
  • Testing data analysis function
  • Data recovery protection (after power failure)
  • Independent protection of multi-channel
  • Total harmonic distortion: less than 5% of rated power

Regenerative Battery Pack Test System


Chroma's 17020 is a high precision system specifically designed for secondary battery modules and pack tests. Accurate sources and measurements ensure the test quality that is suitable to perform repetitive and reliable tests that are crucial for battery modules / packs, for both incoming or outgoing inspections as well as capacity, performance, production and qualification testing.

Chroma's 17020 system architecture offers regenerative discharge designed to recycle the electric energy sourced by the battery module elther back to the channel s in the system performing a charging function or to the utility mains in the most energy efficient manner. This feature saves electricity, reduces the facilities thermal foot print and provides a green solution by reducing the environmental impact on our planet.

Chroma's 17020 system is equipped with multiple independent channels to support dedicated charge / discharge tests, on multiple battery modules / packs, each with discrete test characteristics. The channels can easily be paralleled to support higher current requirements. This feature provides the ultimate flexibility between high channel count and high current testing.

Advanced hardware design can create seamless transitions between maximum charge and maximum discharge (or maximum discharge and maximum charge) with a rapid 50 ms conversion. This feature allows for charge/discharge modes simulating real world scenarios.

Chroma's 17020 system has flexible programming functions and may be operated with Chroma's powerful Battery Pro software. Battery Pro utilizes the system to create cycling tests from basic charge or discharge to complex drive cycle testing for each channel or channel groups. A thermal chamber control can be integrated into a profile and triggered by time or test results yielding a dynamic profile. Battery Pro's features allows quick and intuitive test development to eliminate the need of tedious scripting or programming by a software engineer.

There are multiple safety features including Battery Polarity Check, Over Voltage Protection, Over Current Protection check and Over Temperature Protection to ensure protected charge / discharge testing. In the unlikely event of power or computer communication loss, the data is securely stored in the system, on a non-volatile memory, protecting against potential data loss and allowing for continuous ow after restart.

Regenerative Energy

  • Regenerative battery energy discharge
    • Direct recycle back to the battery unber charging
    • Regenerate to grid
  • Low heat output
  • Reduce air-conditioner power consumption
  • THD is under 5% at rated power
  • The PF is over 0.9 at rated power

The return efficiency up to 85% at above 20% rated power.

Parallel function

  • Easy parallel operation for user flexibility
  • Supports various capacity batteries by paralleling
  • The system supports different capacity batteries from a base system configuration
  • Battery companies have various capacity configurations. Some customers may purchase a high power system to test all capacity battery packs. The downside is that measurements accuracy are not sufficient for small-capacity battery packs. Using Chroma's systems, customers test under individual channels or parallel to test higher capacity battery packs

Using Chroma's systems, customers test under individual channels or parallel to test higher capacity battery packs

Driving cycle simulation
The battery pack always is used at quick and un-regular current condition. The system simulates the real condition on battery pack by working condition simulator.

  • Import dynamic charge/discharge waveforms to simulate the DRIVE CYCLE or the actual application.
  • Support Excel (xls) format
  • There are 720,000 points of driving profile memory to save the waveform current in each channel.
  • Minimum Δt:10ms

Driving cycle simulation

DCIR Function

  • Follow IEC 61960-2003, provide DCIR measurement.
  • The user can adjust T1/T2/I1/I2 setting point and V1/V2 measurement point for user flexible


Continuous transition

  • Continuous charge and discharge transition: No time delay to transit from charge to discharge. The user can verify the battery pack for a design limit.
  • Continuous CC-CV transition: No overshoot current or voltage to damage the battery when transiting CC-CV.

Continuous transition
Response time

  • The trip time between maximum charge and maximum discharge current is 50ms.
  • Smooth current without overshoot for avoiding to damage the battery

Response time.
Flexible System Configuration

  • 17020 Regenerative Battery Pack Test System can be congured to specied requirements and expandable to 60 channels.

17020 Regenerative Battery Pack Test System can be con

  • The driving cable can connect the front panel or rear outlet, users can choose their own

front panel


Model Description
Regenerative Battery Pack Charge/Discharge Test System - 600W/60V/12A per channel, 8 - 56 channels, parallelable
17020 Regenerative Battery Pack Charge/Discharge Test System - 1200W/24V/60A per channel, 4 - 60 channels, parallelable
17020 Regenerative Battery Pack Charge/Discharge Test System - 2400W/100V/50A per channel, 4 - 60 channels, parallelable