Classic Four-Range Battery Testing System

Classic Four-Range Battery Testing System

Introduction:

Application Areas:This battery testing system is widely used in universities, research institutes for the testing and research of button cells, small-capacity cells, simulated cells, battery materials, supercapacitors, and other electrochemical aspects.

Testing Parameters: Charge-discharge curves, charge-discharge efficiency, battery capacity, specific capacity, cycle life, capacity decay curves, DCIR internal resistance, leakage current of supercapacitors, and other parameters.

Voltage Range: Charging Voltage: 0V-5V; Discharging Voltage: -5V

Current Range: Four automatic switching ranges:

• Range One: 1uA-0.1mA (±0.02% of FS)
• Range Two: 0.1mA-1mA (±0.02% of FS)
• Range Three: 1mA-10mA (±0.02% of FS)
• Range Four: 10mA-100mA (±0.02% of FS)

Features of Battery Testing System:

1. Thickness is only 7cm, each cabinet can accommodate 20 units of equipment (160 channels), and each unit has a customized LCD display screen showing equipment box number, range, channel number, and communication status.
2. AD/DA upgraded to 24-bit/16-bit, achieving an accuracy of one part in five thousand, with a sampling speed increased from the original 3 seconds/point to 10 points/second.
3. 3-inch custom LCD display screen mainly shows equipment information (box number, voltage range, current range, communication status, channel number, etc.), adjustable brightness, and synchronized display content with the equipment’s main control board.

Technical Parameters:

Image
Model	BT-2018R (Classic Four-Range Model)		BT-2018A (Exquisite Four-Range Model)	BT-2018AS (Testing Chamber Four-Range Model)
Dimensions	L×W×H 45cm×24cm×7cm		L×W×H 45cm×29cm×7cm	L×W×H 45cm×29cm×10cm
Combination Quantity	20 units/cabinet with fixture trays		20 units/cabinet with fixture trays	10 units/cabinet
Cabinet Structure	Galvanized sheet material, spray plastic treatment		Panel made of pure aluminum material, surface treated with sandblasting
Indicator Lights	Dual-color LED indicators, Three status colors		Seven-color light ring design (red for charging, green for discharging, orange for stand-by, white for test completion, yellow for protection stop, etc.) Consistent colors with control software status information
Basic Parameters	Input Power	Single-phase AC 220V ±10% / 50Hz; 25W
	AC Impedance	≥10MΩ
Voltage	Voltage Range	Charging Voltage: 0V-5V; Discharging Voltage: -5V
	Voltage Accuracy	Actual control accuracy: ±0.02% of FS; Stability: ±0.02% of FS
	Constant Voltage Cut-off Current	≤5uA
Current	Automatic Switching	Range One: 1uA-0.1mA (±0.02% of FS),Range Two: 0.1mA-1mA (±0.02% of FS),Range Three: 1mA-10mA (±0.02% of FS),Range Four: 10mA-100mA (±0.02% of FS)
	Current Accuracy	Actual control accuracy: ±0.02% of FS; Stability: ±0.02% of FS
Charge/Discharge	Charge Mode	Constant current charge/constant voltage charge/rate charge/constant power charge/constant voltage limit charge
	Discharge Mode	Constant current discharge/constant voltage discharge/constant resistance discharge/rate discharge/constant power discharge/constant voltage limit discharge
	Limit Conditions	Voltage, current, relative time, capacity, -△V, rate current, capacity statistics C1, time statistics T1, counter N1, counter N2
Recording	Recording	Time Change Δt: 50ms – 3600s Voltage Change ΔU: 0.001mV – 5V Current Change ΔI: 0.001mA – 100mA
	Recording Frequency	Maximum recording frequency 20Hz
	Test event recording	e.g., run, stop, protection information, parameter reset, channel change, online calibration, etc.
Cycle	Cycle Number	1-99999 cycles
	Nested loop	Nested loop with a maximum support of 3 layers
Protection	Operational Protection	Supports power-off protection, communication interruption protection, computer crash protection, system crash protection
	Protection Conditions	Delayed protection, overvoltage, undervoltage, overcurrent, overcapacity, overtemperature, single-cell overvoltage, single-cell undervoltage
	Alarm Methods	Test completion reminder, safety protection alarm, abnormal error alarm, prompt message
Hardware Features	Channel Characteristics	8 channels/unit, independently programmable, no interference
	Control Mode	Dual closed-loop structure for constant current and constant voltage sources, high-precision linear adjustment
	Input Impedance	≥10GΩ (The leakage current in standby mode is less than 0.1nA, and in the power-off state, the battery is completely disconnected from the device.）
	Reference Characteristics	Uses a specialized benchmark integrated chip from the United States; temperature coefficient: 5ppm/°C (maximum)
	AD/DA	AD：24bit；DA：16bit
	Screen Display Information	3-inch LCD (box number, voltage range, current range, communication status, channel number, etc.) adjustable brightness
	Communication Mode	USB/RS485, using photoelectric isolation technology, supports up to 256 connections
	Cooling Mode	Air cooling, fan speed supports program control, temperature control, and full-speed modes
	Connection Method	Four-wire system, supports three-electrode measurement, button-type fixture, alligator clip, etc. (user selectable)
Software Features	Software Style	Developed on the C# platform, WIN10 style, flat design, adapted to current popular operating habits
	Software Language	Supports online switching between Chinese and English
	Test Plan Features	Independent script for each plan (can be copied, created, modified, deleted, etc.), loop control, data analysis, centralized database management, real-time curves, curve comparison, etc.
	Step Editing Features	Intelligently judges logical relationships based on the operating mode, prompts for erroneous operations, automatically fills in main parameters and cutoff condition parameters, can also be manually modified
	Mode Operation Features	Start, stop, resume start, force jump, parameter reset, channel change, etc.
	DCIR Testing	Supports point-to-point DCIR calculation
	Supercapacitor	Has the function of supercapacitor testing, directly displays results in “farads F” units, can measure leakage current
	Display Resolution	6-digit effective digits (×.×××××)
	Data Presentation	Coordinate curve (X, Y coordinates customizable), graphics, data list (process, details layered)
	Data Export	Can be exported as EXCEL, TXT, graphics (specified step or specified cycle export)
	Data Save	Supports saving of individual or multiple data, automatically creates a new folder for multiple data saves, automatically adds start time, box number, and channel number to the file name for easy data management
	Software Upgrade	Supports remote network push and online upgrade