Battery Capacity/ Discharge Tester | Detailed introduction of technical principles

The core principle of a battery charge/discharge tester (load bank) is to perform deep discharge and charge cycles on a battery bank using a controllable constant current or constant power load, accurately monitoring its energy output to calculate and evaluate its actual capacity and performance.

Specific operations are as follows:
1. Discharge Test: The equipment acts as a controllable high-power electronic load, consuming battery energy at a set current/power. The discharge process is precisely controlled through closed-loop feedback and PWM (Pulse Width Modulation) technology, simultaneously acquiring high-precision voltage, current, and time throughout the discharge process. Discharge stops when the battery voltage drops to the cutoff voltage.

2. Capacity Calculation: The instrument integrates the discharge current and time, using the "ampere-hour integration method" (Ah=∫I dt) to accurately calculate the actual discharge capacity of the battery bank.

3. Charging and Data Processing: After testing, the equipment can switch to intelligent charging mode to fully charge the battery. By comparing the actual discharge capacity with the rated capacity, the battery's health status and load-carrying capacity can be evaluated. Internal resistance testing and voltage curve plotting can be performed throughout the process for comprehensive battery performance diagnosis. Battery Capacity/Discharge Tester, Battery Capacity Tester, Lithium Battery Charge/Discharge Test DC 220V (40A Charge, 100A Discharge) Battery Charge/Discharge Tester Load Group. This product integrates constant current discharge, intelligent charging, single-cell monitoring, and activation of batteries.

Multi-functional, reducing enterprise costs and the workload of maintenance personnel.

Provides comprehensive and scientific testing methods for battery and UPS power supply maintenance. Used in telecommunications, base stations, power, and other sectors.

Performs deep discharge and then recharge as needed, keeping the battery pack in optimal condition and extending battery life, making it the best assistant for battery maintenance.

1. DC220V Voltage Charge/Discharge Function: A single unit can meet the charge/discharge testing needs of battery packs at DC220V voltage level.

2. Constant Current Discharge Function: Continuously adjustable constant current discharge current for accurate measurement of battery pack capacity.

3. Intelligent Charging Function: Intelligent three-stage charging with continuously adjustable charging current to meet the charging and maintenance needs of battery packs.

4. Activation Function: Allows setting the number of charge/discharge cycles to activate the battery pack, effectively improving individual cell capacity.

5. Online Monitoring and Capacity Analysis Function: Real-time online monitoring and display of all test data: current, battery pack voltage, individual cell voltage, discharge time, and capacity; at the end of the verification discharge test, it can quickly analyze the remaining capacity of each cell.

6. Individual Cell Voltage Detection Function: Employs a wireless monitoring module compatible with 1-16V individual cell voltage monitoring; each module can monitor 12 cells simultaneously.

7. Real-time Individual Cell Voltage Detection Function: Automatically displays the current voltage of each individual cell on the main unit screen, automatically displaying the six cells with the lowest voltage.

8. Multiple Alarm Functions: Alarms include: test current exceeding or falling below set values; voltage exceeding or falling below set values; reverse polarity; overheating; short circuit/overcurrent; fan malfunction, etc.

The instrument can automatically alarm and stop discharging.

9. Features pause and parameter modification during discharge: Discharge can be manually paused and parameters (lower limit voltage, discharge current, discharge time, etc.) can be modified during the discharge process.

Discharge can resume without terminating the test. Unlike traditional discharge instruments that require termination and restart of the discharge test.

10. Features remote discharge control: Discharge can be controlled from the PC via an RS485 communication cable between the PC-based host computer software and the charge/discharge tester.

1. Charging Voltage: DC190V-300V

2. Charging Current: 0-40A

3. Discharging Voltage: DC176V-270V

4. Discharging Current: 0-100A

5. Current Accuracy: 1%

6. Voltage Accuracy: 0.50%

7. Individual Cell Voltage Accuracy: 0.20%

8. Individual Cell Voltage: 0.500V-16V (1mV resolution)

9. Charging/Discharging Time: 0-99 hours 59 minutes

10. Number of Individual Cells: Configured according to actual needs

11. Power Supply: AC 220V/380V

12. Cooling Method: Forced Air Cooling

13. Transportation Method: Aluminum Alloy Trolley Case

14. Alarm Generation and Safety Measures: The instrument will automatically alarm and stop discharging if: test lead polarity is reversed; test discharge current exceeds or falls below the set value; voltage is higher or lower than the set value; temperature is abnormal; or fan malfunctions.