Benchtop
Battery Cycle Tester
- Max Voltage: 5V to 35V
- Max Current: 0.5A to 10A
- Max Power: 108W
- With battery test software
Best for Evaluation testing of rechargeable batteries
CD series is an ultra-small design DC charge-discharge power supply that can be easily installed on a small experimental desk. 3.31-inch wide compact size realizes up to 108 watt charge and discharge. Moreover, 1.38-inch wide slim size model is included with the product lineup. (maximum charge/discharge power: 36 watt)
The attached software is also available. It is very convenient when you want to carry out multi-channel charge-discharge tests. As the natural discharge during downtime after charging can be minimized by the suction prevention function, this product is optimum for the evaluation tests.
Features and Benefits
- Attached software available in various charge/discharge testing
- USB interface as standard equipment
- Models lineup supporting 0 V input
- Data acquisition of battery temperature measurement
- High resolution D/A or A/D converter
Main applications
- Designed for various charge/discharge testing of batteries
Models
With thermistors
* option on sale soon
Model | Maximum Output Voltage [V] | Input Voltage [V] | Maximum I/O Current [A] |
Maximum I/O Power [W] |
AC input | ||
---|---|---|---|---|---|---|---|
120 Vac ±10% 50 Hz/60 Hz single phase [A] |
200 Vac * ±10% 50 Hz/60 Hz single phase [A] |
230 Vac * ±10% 50 Hz/60 Hz single phase [A] |
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Input Current (typ.) | |||||||
CD5-5-LThUs1 | 5 V | 1.5 to 5 V | 5 A | 25 W | 1 A | 0.5 A | 0.35 A |
CD5-10-LThUs1 | 10 A | 50 W | 2 A | 1 A | 0.7 A | ||
CD8-0.5-LLzThUs1 | 8 V | 0 to 8 V | 0.5 A | 4 W | 1 A | 0.5 A | 0.35 A |
CD8-1-LLzThUs1 | 1 A | 8 W | 1 A | 0.5 A | 0.35 A | ||
CD8-0.5-LThUs1 | 1.5 to 8 V | 0.5 A | 4 W | 1 A | 0.5 A | 0.35 A | |
CD8-1-LThUs1 | 1 A | 8 W | 1 A | 0.5 A | 0.35 A | ||
CD8-2-LThUs1 | 2 A | 16 W | 1 A | 0.5 A | 0.35 A | ||
CD8-3-LThUs1 | 3 A | 24 W | 1 A | 0.5 A | 0.35 A | ||
CD18-0.5-LThUs1 | 18 V | 1.5 to 18 A | 0.5 A | 9 W | 1 A | 0.5 A | 0.35 A |
CD18-1-LThUs1 | 1 A | 18 W | 1 A | 0.5 A | 0.35 A | ||
CD18-2-LThUs1 | 2 A | 36 W | 1 A | 0.5 A | 0.35 A | ||
CD18-4-LThUs1 | 4 A | 72 W | 2 A | 1 A | 0.3 A | ||
CD18-6-LThUs1 | 6 A | 108 W | 2.5 A | 1.3 A | 0.93 A | ||
CD35-3-LThUs1 | 35 V | 1.5 to 35 V | 3 A | 105 W | 2.5 A | 1.3 A | 0.93 A |
For K-type thermocouple
* option on sale soon
Model | Maximum Output Voltage [V] | Input Voltage [V] | Maximum I/O Current [A] |
Maximum I/O Power [W] |
AC input | ||
---|---|---|---|---|---|---|---|
120 Vac ±10% 50 Hz/60 Hz single phase [A] |
200 Vac * ±10% 50 Hz/60 Hz single phase [A] |
230 Vac * ±10% 50 Hz/60 Hz single phase [A] |
|||||
Input Current (typ.) | |||||||
CD5-5-LUs1 | 5 V | 1.5 to 5 V | 5 A | 25 W | 1 A | 0.5 A | 0.35 A |
CD5-10-LUs1 | 10 A | 50 W | 2 A | 1 A | 0.7 A | ||
CD8-0.5-LLzUs1 | 8 V | 0 to 8 V | 0.5 A | 4 W | 1 A | 0.5 A | 0.35 A |
CD8-1-LLzUs1 | 1 A | 8 W | 1 A | 0.5 A | 0.35 A | ||
CD8-0.5-LUs1 | 1.5 to 8 | 0.5 A | 4 W | 1 A | 0.5 A | 0.35 A | |
CD8-1-LUs1 | 1 A | 8 W | 1 A | 0.5 A | 0.35 A | ||
CD8-2-LUs1 | 2 A | 16 W | 1 A | 0.5 A | 0.35 A | ||
CD8-3-LUs1 | 3 A | 24 W | 1 A | 0.5 A | 0.35 A | ||
CD18-0.5-LUs1 | 18 V | 1.5 to 18 V | 0.5 A | 9 W | 1 A | 0.5 A | 0.35 A |
CD18-1-LUs1 | 1 A | 18 W | 1 A | 0.5 A | 0.35 A | ||
CD18-2-LUs1 | 2 A | 36 W | 1 A | 0.5 A | 0.35 A | ||
CD18-4-LUs1 | 4 A | 72 W | 2 A | 1 A | 0.3 A | ||
CD18-6-LUs1 | 6 A | 108 W | 2.5 A | 1.3 A | 0.93 A | ||
CD35-3-LUs1 | 35 V | 1.5 to 35 V | 3 A | 105 W | 2.5 A | 1.3 A | 0.93 A |
Functions
Three charge modes
Constant current/constant voltage (CC/CV) charge

By setting both of current value and voltage value, the output exceeding 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, a 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 -△V
- 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 -△V you set.
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
- 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.
Digital control function
Control function | ON/OFF setting, charge/discharge operation switching, charge/discharge mode switching | |
---|---|---|
Various status displays (charge/discharge status, operation mode, OVP, OCP, UVP, OPP, OTP, OHP, OBP, ACF, RS) | ||
Max. 512 units * digital control * When -LGmb option is selected and separately available is used. The number of power supplies with the same output setting that connects to one piece of the adaptor is limited to 256 units (slave unit setting), however the communication speed becomes faster compared to the case multiple power supplies are connected with individual setting (Master unit setting). Please ask sales staff for details. |
||
Collective control when multiple devices are connected | ||
Setting function |
|
Voltage/Current power value mode (maximum rated voltage/current value) |
OVP/OCP/UVP/OPP setting | Voltage/current power value mode (maximum overvoltage/overcurrent/over-discharge/over power protection value) |
|
Constant power/Constant resistance setting |
|
|
Reading function |
|
Voltage/current value mode (maximum rated voltage/current value) |
|
Voltage/current value mode (maximum rated voltage/current value) | |
OVP/OCP/UVP/setting | Voltage/current power value mode (maximum overvoltage/overcurrent/over-discharge/over power protection value) |
|
Constant power/constant resistance/temperature setting value |
|
Remote function
Remote switch ON/OFF

Output | Relay | Open collector |
---|---|---|
ON | SHORT | VCE 0.4 V or less |
OFF | OPEN | VCE 2 V or more |
Sink current 1 mA
* As +S is set to common, input the external control voltage based on +S. Otherwise, a failure may be caused.
Remote sensing

The voltage reduction (VO-VL) due to resistance (R) of the output line and degradation of stability due to contact resistance are prevented (up to 0.5 V).
Various protection functions
For the charge-discharge tests, various protection functions are prepared for protecting your devices and this unit.
- OVP (overvoltage protection)
- OCP (overcurrent protection)
- UVP (under-voltage protection)
- OPP (over-power protection)
- OTP (internal over temperature protection 1)
- OHP (internal over temperature protection 2)
- OBP (external temperature protection)
- ACF (input voltage reduction)
- RS (remote sense line reverse connection protection)
Battery temperature detection function
The temperature of a battery is measured by the temperature sensor. If the temperature becomes abnormal, charge and discharge are stopped in an urgent manner to protect the battery.

Software
Software for remote control "CD-BC" (Standard equipment) *
CD-BC is dedicated software for remote-controlling our company's charge-discharge power supply. It realizes ideal power supply control when you carry out the charge-discharge test for various rechargeable batteries such as lithium-ion batteries. It enables the setting of test conditions, test execution, confirmation of test status, and display and saves test results.
* Standard equipment is only controlling the one-channel version. If you want to control multiple channels, you need to purchase the CD-BC-512ch.
Features
- The charge-discharge test (creating test condition to executing to checking) can be executed by dedicated software only.
- Executing the charge-discharge test by using the charge-discharge power supplies made our company of maximum 512 units.
- Checking the datalog during the test.
- Executing the charge-discharge test linked with Espec's thermostatic chamber.
- Charge-discharge test for various batteries: lead-acid, nickel-cadmium (NiCd), nickel-metal hydride (NiMH), lithium-ion (Li-ion), and lithium-ion polymer (Li-ion polymer), are supported.
1. Creating of test condition
Create a condition for charge and discharge.
Up to 16 patterns of charge and discharge sequence can be set. You can set various test conditions according to purpose such as selection of charge and discharge mode and setting of each protection function.

2. Executing of test
Execute the test for each group you set.
On the execution screen, necessary information such as sequence, thermostatic chamber, the status of power supply, voltage value, and current value at test can be monitored on one screen. If the test is executed for multiple groups at the same time, the statuses can be collectively monitored.

3. Checking of measurement data
Check the completed test data. You can check the data for each cycle of the sequence. You can check the status for each unit time and end condition of each cycle.
The data can be displayed as a graph.

Operation environment *
* It does not guarantee the operation.
- Microsoft and Windows are registered trademarks of Microsoft Corporation in the USA and other countries.
- Other product names are registered trademarks of each company.
OS | Windows 10 (32/64 bit), 8.1 (32/64 bit), 8 (32/64 bit), 7 (32/64 bit), Vista (32/64 bit), Microsoft .NET Framework4.0SP1 | ||||||
---|---|---|---|---|---|---|---|
Language | English/Japanese | ||||||
CPU | Pentium4 or more | ||||||
RAM | 1 GB or more | ||||||
HDD | 500 MB or more free capacity | ||||||
Monitor | 1024 x 768 or more resolution | ||||||
Connection port | USB port or COM port is required depending on the connection. | ||||||
USB port | 1 port or more (When using CD-BC-512ch, USB protection key connection is required.) |
Specifications
For details, download the datasheet below.
AC Input Cable
- Standard
(Except for -L(200V) -L(230V) option) - CABLE TYPE 1
- 125 V/10 A
-
- Standard
(For -L(200V) -L(230V) option) - CABLE TYPE 3
- 250 V/10 A
-
Options
-LGmb: digital interface board *1 *2
- -LGmb: digital interface + communication cable 2 meters length
- -LGmb(Mc0.15): digital interface + communication cable 0.15 meters length
- -LGmb(Mc0.5): digital interface + communication cable 0.5 meters length
Digital control with LAN/USB/RS-232C/RS-485/GPIB is available.
- As for the option, the USB interface is not attached.
- For more information on the digital interface, refer to CO/USB series datasheet.
-LZ: portable handle
The portable handle is attached to the upper surface. (only the model of dimension diagram C of datasheet)
-L(200V): 200 Vac ±10% input on sale soon
-L(230V): 230 Vac ±10% input on sale soon
How to Order
For Model No. please be sure to contact the sales representative.
Accessories (sold separately)
Adapters for connecting digital interface board (sold separately)
To use the digital interface, you need to prepare a digital interface adapter separately. The following interface adapters are available according to the communication method of your controller port.
- CO-E32m
- Adapter for LAN
Total 16 units can be connected to one CO-E32m.
LAN cable is not provided.
- CO-U32m
- Adapter for USB
Total 16 units can be connected to one CO-U32m.
USB cable is not provided.
- CO-MET2-9
- Adapter for RS-232C (9 pin)
D-sub ⇔ Modularjack
Total 16 units can be connected to each CO-MET2-9.
- CO-MET2-25
- Adapter for RS-232C (25 pin)
D-sub ⇔ Modularjack
Total 16 units can be connected to each CO-MET2-25.
- CO-MET4-25
- Adapter for RS-485 (25 pin)
D-sub ⇔ Modularjack
Total 16 units can be connected to each CO-MET4-25.
- CO-G32m
- Adapter for GPIB
Total 16 units can be connected to one CO-G32m.
GPIB cable is not provided.
AC Input Cable
- Sold separately
- CABLE TYPE 4
- 250 V/10 A
-
Various tools are prepared so that you can use the CD series more conveniently.
NOTE: The power supply is not included with accessories.
Stand [1.38-inch wide models]

Convenient for a single use for an individual device.
Rack mount shelf [RMO series]

10 units*/1 shelf are stored in the cabinet and each unit can be removed easily. [* 1.38-inch wide models]
If you use the CD series with this shelf, please contact the sales representative.
Dimensions
Download
-
CD series Datasheet
Date: 2022-2-9 rev.08
PDF (14,815 KB)
-
CD series Basic Instruction Manual
Date: 2020-09-11 rev 0.0
PDF (1,076 KB)
-
CD series Instruction Manual
Date: 2020-10-12 rev0.1
PDF (2,039 KB)
-
CD/CDPU series software CD-BC Instruction Manual
Date: 2021-06-14 rev 3.5
PDF (2,744 KB)
-
CD series USB Driver
Date: 2021-07-01 rev1.7.4
ZIP (6,774 KB)
The account registration is necessary for downloading
-
CD series Datasheet
Date: 2022-2-9 rev.08
PDF (14,815 KB)
-
CD series Basic Instruction Manual
Date: 2020-09-11 rev 0.0
PDF (1,076 KB)
-
CD series Instruction Manual
Date: 2020-10-12 rev0.1
PDF (2,039 KB)
-
CD/CDPU series software CD-BC Instruction Manual
Date: 2021-06-14 rev 3.5
PDF (2,744 KB)
-
CD series USB Driver
Date: 2021-07-01 rev1.7.4
ZIP (6,774 KB)
In this website, we provide only the latest version of information including instruction manuals as of our products. Therefore, the newest versions of manuals on the website might be not same as the ones of products you purchased in the past.