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Battery Charging Discharging Testing Machine

The charging discharging testing process of lithium batteries is a crucial step in evaluating battery capacity and performance, carrying significant importance.

Charging discharging testing, involving charging and discharging processes, determines the battery’s capacity, i.e., the amount of electrical energy the battery can store and release.

Our Battery Charging Discharging Testing Machine

★ BTS-5V6A

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Communication Method

TCP/IP (network port)

Channel Control Mode

Single point independent control

Charging Energy Efficiency




Charging Voltage


Discharge Port Voltage


Discharge Feedback Efficiency


Voltage Accuracy


Current Accuracy


Main Temperature

According to the specific equipment, each channel can be customized and equipped with 1 channel.

Voltage Resolution


Current Resolution


Temperature Resolution


Input Power

AC220N±10%/50Hz (cabinet power supply mode: three-phase five-wire)

Sampling Time

Single box sampling frequency: 10mS

Recording Time


Charging Mode

Constant current and voltage limiting, constant current and constant voltage, constant power charging, constant current overcharge test, constant resistance charging, constant resistance charging (for batteries with protective plates)

Charging Cutoff Conditions

Voltage, current, time, capacity, temperature

Discharge Mode

Constant current discharge, constant power discharge, constant current over-discharge test, constant resistance discharge, constant resistance discharge (for batteries with protective plates)

Discharge Cutoff Conditions

Voltage, current, time, capacity, temperature

Single Cycle Steps

100 steps, with nested loop function (10 levels)

Circuit Structure

Modular structure design for easy replacement and maintenance

Software and Hardware Protection

Reverse connection protection, overvoltage protection, overcurrent protection, overtemperature protection, undervoltage protection, short circuit protection

★ SC-S13-512/6

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1. Brief Introduction

This product is used for formation, capacity grading, and performance parameter testing of lithium batteries. It is a master-slave battery comprehensive testing system composed of a computer and equipment microcontroller.

The structure is advanced, performance is reliable, operation is convenient, and efficiency is high. It has a very high cost-performance ratio and is an essential production testing equipment for lithium battery manufacturers, capacity grading manufacturers, and research institutions.

2. Structure and Appearance of the Equipment

The structure of this equipment is mainly composed of the following parts:

(1) One CPU board, centrally controlling the entire cabinet.

(2) 64 constant current boards for eight channels, evenly arranged in four sections.

(3) 32 charging switch power supplies for two groups of outputs, each supplying power to 2 constant current boards.

(4) Two keyboard boards, allowing dual-sided operation.

(5) 32 sets of quick clamps, each set with 16 channels, equipped with 32 plastic battery trays. Each battery tray can simultaneously accommodate batteries of sizes such as 18650, 21700, 26650, 32650, and 32700.

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3. System Structure and Operation Principles

(1) System Components

Lithium battery formation and grading equipment (1-10 units).

② One computer with a USB interface (to be provided by the user).

③ A USB to RS485 interface converter and communication cable.

④ A set of SC product software.

System composition

(2) Operation Principles

① The equipment is controlled through a computer for sending commands and collecting data.

② The keyboard allows manual operation of the equipment, displaying parameters and status.

③ The constant current boards, commanded by the CPU, function in constant current and constant voltage modes.

Working principle

4. Main technical parameters

Equipment structure

Number of device channels

The whole machine has 512 channels in total


Width 1620mm X Depth 550mm X Height 1840mm

Chassis color

Standard off-white (can be customized)

Fixture form

Quick clamp four-wire clamp (pointed head, flat head, two pieces) optional, equipped with battery tray

Fixture spacing


Support battery specifications

18650, 26650, 21700, 32650, 32700

Working power supply

Three-phase five-wire system AC380V±10%,50HZ

Operating power consumption


working environment

Temperature -10~40℃, relative humidity ≤80%

Heat dissipation method

Natural air intake, upward exhaust

Channel parameters

Voltage measurement range

DC 0~5V

Battery voltage range

Charging DC0~4.5V; discharging DC4.5~2V

Constant voltage range

DC 2.5~4.5V

Voltage accuracy

±(1‰ reading +1% full scale)

Voltage resolution

Resolution 1mV

Voltage stability


Current range

Charging DC 60mA~6A; discharging DC 60mA~6A

Current accuracy

±(1% of reading +1%‰full scale)

Current resolution

Resolution 1mA

Current stable reading


Software function

Control method

Computer control equipment work, whole cabinet control

Communication method

Serial port, baud rate 57600

Process settings

Up to 32 work steps and 256 cycles can be set, with nested cycle function

Charging mode

Constant current, constant voltage, constant current and constant voltage

Charge cutoff conditions

Voltage, current, time, capacity

Discharge mode

Constant current

Discharge cutoff conditions

Voltage, time, capacity

Protective function

Overvoltage, undervoltage, overcurrent, undercurrent, overcapacity protection, power-off protection, data breakpoint recovery

Time limit

0~30000 minutes/step, time unit is min

Time precision


Sampling inspection cycle


Minimum data logging frequency


Battery sorting

Sort by (capacity, time, open circuit voltage, discharge platform, etc.)

Data processing

It can record voltage, current, time, capacity and other data, and automatically calculate constant current charging ratio, capacity loss,

5. Product Features

(1) Each battery has a completely independent constant current and constant voltage source, stable and without impact.

(2) The equipment is controlled by an AVR microcontroller, connected to a computer, capable of saving all test data and curves. It can also be operated directly through the equipment’s keyboard to set up processes, complete tests, and perform sorting.

(3) Real-time detection and display of the status of each battery, with the ability to stop the operation of a channel and illuminate indicator lights in case of anomalies.

(4) Equipped with power-off protection, allowing the original work process to continue running after power is restored.

(5) Power tubes use field-effect transistors, suitable for batteries with lower discharge voltage, such as lithium iron phosphate batteries.

(6) Utilizes a graphical user interface, intuitive and clear, simultaneously displaying data such as voltage, current, time, and capacity for each battery. It can also be configured to show different colors for corresponding operational states and abnormal conditions.

(7) It is recommended that users equip each computer with a UPS power supply to prevent damage to the computer or data during power outages. Each computer can connect to a maximum of 10 devices to avoid affecting computer operation.

6. Product accessories





Equipment factory inspection report

1 set/unit


Equipment instruction manual

1 set


Packing list and product certificate

1 set/unit


Communication line

1 set/unit


Product software U disk

1 set

7. Service and support

(1) One-year warranty with free maintenance, upgrades, and training during the first year.

(2) Within the warranty period, on-site repair services will be provided within 48 hours, with special circumstances subject to negotiation.

(3) After the warranty period, maintenance will only incur raw material costs, and software upgrades will be provided free of charge.


8. Packaging, Transport, Storage

(1) Packaging: The packaging box includes product name, model, labels, quality certificate, and manufacturing date.

(2) Transport: The packaging is suitable for transportation by car, ship, plane, train, etc. The transportation process includes rain and shock protection, and civilized loading and unloading.

(3) Storage: When storing the product, it should be well-packaged to prevent moisture and corrosion. It should also be kept off the ground to prevent water contact. If stored for more than 1 year, it should be re-inspected by a professional before use.

Here are several reasons why the charging discharging testing process is important:

Determining Battery State

Through capacity testing, the actual capacity of the battery can be determined, providing insights into the current state and performance level of the battery. This is crucial to ensure that the battery can deliver sufficient electrical energy during usage.

Quality Control

During the production process, capacity testing is employed to detect the quality and consistency of batteries. This helps identify any potential manufacturing defects or faulty batteries, ensuring that products delivered to the market maintain consistent performance levels.

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Fault Diagnosis

In the event of issues with battery components, capacity testing can be utilized for diagnosing problems and determining whether the issue lies in a decrease in battery capacity or other faults. This aids in accurate troubleshooting and maintenance.

Battery Life Management

Regular capacity testing allows for monitoring the battery’s degradation process, identifying a decrease in battery capacity, and proactively preventing potential faults. This contributes to effectively managing the battery’s lifespan and facilitating timely maintenance or replacement when needed.

Performance Assessment

Capacity testing provides a detailed assessment of battery performance, offering information on charging and discharging efficiency, cycle life, and other aspects. This is crucial for establishing performance requirements for devices and systems utilizing the battery.

In summary, the capacity testing process is crucial for ensuring the reliability, performance, and lifespan of the battery. It plays a critical role not only in production and quality control but also helps users effectively manage and maintain their battery components.

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