High power battery cycle tester

Remote control of 1250W charge-discharge cycle with battery test software

Charge/Dischage Voltage:
5V to 60V
Charge/Dischage current:
20A to 250A
Charge/Dischage power:
200W to 1250W
0 Volt deep discharge supports

EFFICIENT FEATURES FOR EASY OPERATION OF HIGH ENERGY BATTERY TEST

The CDPU series is a battery cycle tester that provides high-power sourcing and sinking capabilities from 200 W to 1250 W in a single unit. Liquid crystal 5-digit meter that enables correct setting and reading of charge and discharge voltage and current values, dedicated test software* that collectively controls charge-discharge operation and various measurements, and battery temperature detection function by thermistor can simplify the single battery cell test for the large-capacity batteries for HEV, PHV, EV, and PEV whose demand is especially growing in recent years. Even if multiple cells are connected in series, the data of charge and discharge to/from each cell, voltage, current, and temperature data for each cell can be obtained (up to 250 V). This series is optimum for charge-discharge tests for various rechargeable batteries such as lithium-ion batteries, fuel cells, nickel hydride batteries, and lead-acid batteries, and electric double-layer capacitors.

* Up to two channels are supported. The software that supports more channels is also available. For details, contact the sales representative.

Notice: What is the impact of installing the HASP key (USB dongle key) driver following Windows 10 update?

FEATURES AND BENEFITS

Easy setup and execution of charge/discharge cycle tests with battery test software
Battery temperature data acquisition available
Up to 1250 W high power source and sink by only one unit
Charge-discharge tests for various batteries
High-resolution D/A and A/D converters are installed
Regularly equipped with digital interface
Low noise switching system optimum for research and development
Collective control for multiple or parallel connections

APPLICATIONS

Various batteries charge/discharge cycle testing
Battery Energy Storage System (BESS) testing

Battery Cycle Test Software "CD-BC-1ch" (Attached)*

CD-BC is dedicated software for remote-controlling our company's battery cycle tester. It realizes ideal power supply control when you carry out charge-discharge tests for various rechargeable batteries such as lithium-ion batteries. It enables the setting of test conditions, execution of the test, confirmation of test status, and display and saving of test results.

* Standard equipment is only controlling one channel version. If you want to control multiple channels, purchase the CD-BC-Mch.

Features

The charge-discharge test (creation of test condition to execution to check) can be executed by dedicated software only.
It is possible to conduct charge-discharge tests using up to 256 of our battery cycle testers.
The data log can be monitored in real-time during the test.
Possible to execute the charge-discharge test linked with Espec’s temperature chamber.
Charge-discharge tests for various batteries: lead-acid, nickel-cadmium (NiCd), nickel-metal hydride (NiMH), lithium-ion (Li-ion), and lithiun ion polymer (Li-ion polymer), are supported.

Operation Example

[Repetitive charge/discharge test of lithium-ion battery]

**Test condition**
Battery specification	Rated capacity	2.4 Ah
	Nominal voltage	3.7 V
	About 200 times charged/discharged
Charge	Mode	CC-CV charging
	Charging current	2.0 A
	CV voltage	4.2 V
Discharge	Mode	CC discharge
	Discharging current	2.0 A
	End voltage	2.8 V
Average temperature		20 °C

Using battery cycle test software "CD-BC" enables various connections and controls.

* Indicates equipment that must be prepared by the customer.

Example of connection 1-1

Example of connection 1-2

Example of connection 2

Example of connection 3

Example of connection 4

For details, download the datasheet below.

Models

Model	I/O Voltage	I/O Current	I/O Power
CDPU5-40	0 to 5 V	0 to 40 A	200 W
CDPU5-50		0 to 50 A	250 W
CDPU5-100		0 to 100 A	500 W
CDPU5-200		0 to 200 A	1000 W
CDPU5-250		0 to 250 A	1250 W
CDPU20-30	0 to 20 V	0 to 30 A	600 W
CDPU30-40	0 to 30 V	0 to 40 A	1200 W
CDPU60-20	0 to 60 V	0 to 20 A	1200 W

**Discontinued models**
Sales of the following models ended in September 2022. We continue to support the products.
Model	I/O Voltage	I/O Current	I/O Power
CDPU5-5*	0 to 5 V	0 to 5 A	25 W

Functions

Three charge modes

Constant Current/Constant Voltage(CC/CV) charge

By setting both of current value and voltage value, the output exceeds the value you set can be disabled.

Constant Current (CC) charge

The charge is carried out at the current value you set. Even if the terminal voltage changes during charge, a constant current can be passed.

Constant Voltage (CV) charge

The charge is carried out at the voltage value you set. Even if the charge current changes, the constant voltage can be applied.

Charge completion condition setting

Setting of time

The time can be set up to 999 hours 59 minutes 59 seconds by one-second unit. If the time reaches the setting time, the charge is completed.

Setting of voltage

Set the voltage value to complete the charge. If the terminal voltage of the battery reaches the setting value, the charge is completed (only at a constant current charge).

Setting of current

Set the current to complete the charge. If the current that is passed to the battery reaches the setting value, the charge is completed (only at a constant voltage charge).

Setting of-ΔV

For some batteries, the voltage increases when the charge is completed, and then the voltage decreases to complete the charge. The voltage reduction value at that time is measured and the charge is completed if the voltage decreases by -ΔV you set.

Setting of temperature Coming soon

When the external temperature, the discharge is completed. (External temperature protection is disabled when this setting is made.)

Three discharge modes

Constant Current (CC) discharge

The discharge is carried out at the current value you set. Even if the terminal voltage changes during discharge, a constant current can be passed.

Constant Power (CP) discharge

The discharge is carried out at the power value you set. If the terminal voltage changes during discharge, constant power can be consumed according to the change.

Constant Resistance (CR) discharge

The discharge is carried out at the resistance value you set. The value of terminal voltage is measured and the current value for discharge is decided according to the setting value.

Discharge completion condition setting