20-Channel 5V 10A Lithium Cell Charge Discharge Testing and Balance Maintenance Machine DT50W-20

Item No.: DT50W-20
Description: Battery grading equipment, battery balancer tester
Input Power: AC200V~245V50/60HZ
Applicable Batteries: Li-ion / Polymer / NiMH / NiCd battery cells
Con-Voltage Range: 1V-5V
Current Output: 0.5A-10A
Operation Method: Online
Lithium Battery Charge Discharge Testing and Balance Maintenance Machine DT50W-20 
is capable of conducting capacity tests, charge and discharge characteristic tests, capacity grading and matching, balance maintenance, internal resistance tests, data analysis & comparison, etc., for a variety of Lithium batteries, NiMH batteries, and NiCD batteries. It offers physical compatibility with 18650, 26650, 32650, 33140 cells as well as pouch and prismatic cells. With its isolation measurement design, the DT50W can balance charge & discharge individual cells within a battery pack to ensure uniformity while identifying any faulty cells without requiring disassembly and restore unbalanced battery packs to their normal balanced state through balancing charge-discharge operations.

The device features a modular design, enabling parallel testing with a maximum current capacity of 200A.

The device is widely utilized in battery production facilities, battery recycling plants, research laboratories focusing on batteries development or new energy vehicle batteries testing and maintenance.

Product Display
Lithium Cell Charge Discharge Testing and Balance Maintenance Machine
Model No.: DT50W-20

Max. Single Channel Output: 5V 10A
Max. Parallel Output: 5V 200A

Intelligent, multi-functional, one machine to meet different testing needs
Modular Design, Easy Maintenance

The modular design enables flexible combinations, allowing multiple devices to be integrated into a testing cabinet for efficient and rapid completion of testing and maintenance tasks for the entire battery pack.

Isolated channel design, each channel is independently controlled and does not affect each other. After-sales maintenance is simple and convenient. If a single channel fails, just replace the module to complete the repair.

DT50W-160 is composed of the single DT50W-20, a number of DT50W-160 can constitute a testing group to match the needs of mass testing.

Lithium Cell Capacity Grading and matching Test System

Applicable Batteries:  
Battery cells of Li-Ion, polymer, Ni-MH, Ni-Cd, etc.

• Each channel is equipped with a dedicated processor to ensure a perfect level of capacity calculation, timing, voltage and current control.
• Fully isolated design, each channel is equipped with an independent processor, it can directly test the cells of the battery pack.
• Independent heat source channel, temperature control and speed regulation fan.
• The LED light indicates the running status, testing status, matching status, and alarm status.
• Fully compatible with the batteries of Li-ion, Polymer, Ni-MH, NiCd, and so on.
• Fully compatible installation with 18650, 26650, 32650, pouch, prismatic batteries.
• The height of the probe is adjustable, ruler scale for easy leveling 
• Online test between computer and device, the setting and result is particular and plentiful,
• With the work steps of Constant Current Discharge, Constant Power Discharge, Constant Resistance Discharge, Constant Current Charge, Constant Voltage Charge, Constant Current & Voltage Charge, Internal Resistance Test and Idle, etc.
• Work step automatically switching.
• The charge and discharge parameters can be customized.
• The matching can be processed, the test results can be matched according to the customized standard, and it can mark and display on the device. 
• With channel parallel testing function, the maximum parallel current output 200A.
• One click balance recondition battery pack voltage difference, making battery repair simple and easy.
• Battery anti-reverse connection protection and alarm.
• The recording function of the test process
• With 3 Y-axis (voltage, current, capacity) and a time axis curve drawing ability, and data report function. 
• The color of the test status bar is customized, which makes it easy to check the test status of all devices when the number of tests is large.

Technical Specification:

Model No.: DT50W-20

Input Voltage:

AC 220V± 10% 50Hz/60Hz

Input Power:

No-load 80W, full load 1650W

Number of Channels 20
Channel Control Mode Independent control
Single Channel Parameter




Max. Charge Constant Voltage:


Min. Discharge Cut-off Voltage:








Max. Charge Current:


Max. Discharge Current:


Min. Charge Cut-off Current





Max. Output Power ( Single Channel )


Data Recording



Data Recording Conditions



Time interval

Voltage interval

Current interval





Charge Modes:



Constant current charge

Constant voltage charge

Constant current & voltage charge

Charge Cut-off Conditions:

Voltage, Current, Time, Capacity, -△V





Discharge Modes:



Constant current discharge

Constant power discharge

Constant resistance discharge

Charge Cut-off Conditions:

Voltage, Current, Time, Capacity



Cycle Index:

1-500 times

Cycle Nest







Power-down protection

Reverse connection

Over-temperature protection

Over-voltage protection

Short-circuit protection

Extended Function Parallel Channel Testing Maximum parallel current output: 200A
One-Click Balancing Function Maximum balance current output: 10A

IP Grade


High Voltage Insulation Between Channels

AC1000V/2min Normal

Voltage & Current Test Sampling

Five-core wires connection / Probe


< 76 dB

Host Computer Communication Method

based on TCP/IP protocol

Test Report Output Method


Server Disk Configuration


Server Operating System WINDOWS XP or above system with LAN port configuration

Communication Port


Equipment Work Ambient Conditions

Operation Ambient Temperature

0 ℃ - 40 ℃

Storage Temperature

-10 ℃ - 50 ℃

Operation Ambient Humidity

≤ 70 % RH (No condensation)

Storage Ambient Humidity

≤ 80 % RH (No condensation)



Optional Battery Connection Fixtures

 (Remarks: Customized options such as row connectors and BMS adapter plates are available)

Connection Schematic Diagram of Battery Pack Balance Maintenance

Default Standard Accessories

1. Testing cables with alligator clips----------------20 pcs
2.  Power cord--------------------------------------------- 1 pc 
3.  LAN cable-----------------------------------------------1 pc                     
(Remarks: Additional battery connection fixtures need to purchased separately. Additionally, customized options such as row connectors and BMS adapter plates are available)

Packing  Information
Product Size:    66*26*16 cm(L*W*H)
Pcs/Ctn:            1 pc/ctn
Package Size:   78*41*29 cm(L*W*H)
G.W.:                 19.50 kgs
N.W.:                 17.50 kgs

Software Interfaces

Main Interfaces

List Display

Work Step Setting

Match Conditions Setting

Single Channel Data Analysis

Multiple Channel Data Analysis and Comparison

Test Data Exporting

Device Connection Diagram:

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