The KDZD886 series battery charge and discharge tester is designed specifically for checking discharge tests, charging tests, remaining capacity tests, battery activation and repair, daily maintenance, and checking the carrying capacity of DC power supply for battery packs (12V, 24V, 48V, 110V, 220V, 380V, 480V). Based on the charging and discharging characteristics of lead-acid batteries and lithium batteries, this tester can monitor in real-time parameters such as battery voltage, current, charging and discharging duration, charging and discharging capacity, and battery pack activation cycle during the charging and discharging process. The instrument adopts an embedded operating system, supports wireless data transmission, and automatically completes the entire constant current and constant voltage charging and discharging process with one click activation. It can generate various intuitive curves, bar charts, reports, etc. that reflect the performance of battery packs, and can be enlarged, queried, and printed. It is possible to analyze battery performance, making battery maintenance and management easier and more scientific, thereby extending the service life of the battery pack. If used in conjunction with the wireless cell inspection module, it can effectively monitor the voltage of individual cells in the battery pack and promptly detect faulty batteries that have severely deteriorated performance and caused overcharging.

Product Features
Wide voltage design: 10-300V wide voltage design, a single machine can meet various voltage levels (12V, 24V, 48V, 110V, 220V, 240V) for battery pack charging and discharging tests, with continuously adjustable voltage. Support customization: Charging voltage, charging current, discharging voltage, and discharging current can be customized according to the actual needs of users. It has a constant current discharge function for battery packs: constant current, constant power discharge, continuously adjustable current, and accurate measurement of battery pack capacity. Equipped with intelligent charging function for battery packs: intelligent three-stage charging, with adjustable charging voltage starting from "zero" and continuously adjustable charging current to meet the charging and maintenance needs of the battery pack. Activation function: It can set the number of charge and discharge cycles to activate the battery pack, effectively increasing the battery capacity and extending the service life of the battery pack. It has the function of pausing and modifying parameters during the discharge process: During the discharge process, it is possible to manually pause the discharge, modify the discharge setting parameters (lower limit voltage, discharge current, discharge time, etc.), and continue the discharge without terminating the test. Equipped with remote control discharge function: The PC end upper computer software can be connected to the charge and discharge tester through RS485 communication line for PC end control discharge. The product discharge uses Polymer Positive Temperature Coefficient resistors, which have a high safety factor and avoid the phenomenon of red heat. They have stronger environmental adaptability, making the entire discharge testing process safer and more stable. The main control board adopts high-performance ARM from STMicroelectronics as the CPU, which has stable performance, high frequency, and powerful functions. The discharge process adopts a dual CPU redundancy design, and the main and auxiliary CPUs work together to maximize the safety and reliability of testing. 7-inch true color touch display screen: adopting a 1024x800 resolution high-definition touch display screen, it can intuitively display bar charts, tables, curve graphs, data reports, help documents, etc. The touch panel adopts a multi-layer composite thin film resistive touch panel, which is particularly suitable for electromagnetic interference and transient pulse interference generated by DC battery rooms and high-frequency chargers. Equipped with multiple preset test templates: Built in with six commonly used test parameter templates, the template data can be saved in case of power failure, eliminating the need to reset every time the device is turned on. Testing can start with just one click, making testing simple and efficient. Historical data curve viewing: Built in data files can be queried in the form of charts and waveform curves, as well as displayed from multiple angles such as enlargement, reduction, left shift, and right shift of waveform charts. Data storage and backup function: Built in 16GB data storage space, can store more than 1000 sets of charge and discharge data, and supports historical data viewing, analysis, deletion and other functions. Equipped with a 16GB USB flash drive, data analysis and backup management can be carried out through PC upper computer software. Equipped with calibration function: The instrument has voltage and current calibration and correction functions, which can calibrate and correct measurement errors on site to ensure measurement accuracy. This function is particularly suitable for use when there is a requirement for consistency between instrument readings and on-site instruments. Multiple charging test alarm functions can be set, including automatic stopping of charging when any of the test conditions such as charging capacity, charging duration, and overall voltage threshold are met, as well as multiple test fault alarm displays such as overvoltage, overcurrent, overtemperature, and reverse connection of voltage test terminals. Rich expansion interfaces: The back of the instrument has communication interfaces such as multi machine parallel connection, remote control, USB, etc. Equipped with professional upper computer analysis and management software: capable of in-depth analysis of test data generated by equipment, including individual voltage curves, whole group voltage curves, whole group current curves, individual bar charts, real-time data tables, as well as upper computer software password protection, experimental conclusions and other functions. It can automatically generate Excel or Word document format reports according to needs and print and archive them.

Technical Specifications
KDZD886 constant current discharge+capacity analysis test+constant voltage charging+constant current charging+cyclic activation
Product model: DC10-300V system
Charging voltage range: DC 10-300V
Charging current range: 0-60A (full range)
Discharge voltage range: DC 10-300V
Discharge current range: 0-100A (maximum current)

Instrument functional characteristics
Display function: 7-inch LCD touch screen, resolution 1024x800
Voltage measurement accuracy: ± 0.5% FS+0.1V
Current measurement accuracy: ± 1% FS+0.1A maximum range of 120A
Current display accuracy: 0.1A
Data storage capacity: Built in: 16Gbit FLASH; External 16GB storage
Data communication: RS485 * 3; USB*1
Working modes: constant current, constant power, constant voltage, cyclic activation, and parallel/slave control

Protection performance (LCD display reminder+buzzer alarm)
Host protection function: Over temperature, over-current, and out of control current trigger shutdown protection
Reverse connection protection function: polarity reverse connection sound and light alarm prompt
Abnormal protection: power cord failure, main cable failure
Over temperature protection: Equipped with a built-in temperature sensing probe, the device automatically stops discharging when the temperature exceeds 75 ℃
Emergency stop protection: External air circuit breaker for emergency stop protection

working environment
Cooling method: forced air cooling
Temperature: Operating temperature range: -5~50 ℃ Storage temperature: -40~70 ℃
Humidity: Relative humidity: 0-90% (40 ± 2 ℃)
Altitude: Rated altitude ≤ 4000 meters

working power supply
Voltage: Host operating voltage: single-phase three wire system: 220V AC (-20%~+30%), frequency: 45-65Hz; charger operating voltage: three-phase three wire system 380V AC)
Voltage withstand test:
Input - Chassis: 2200VDC 1min
Input output: 2200VDC 1min
Output - Chassis: 700Vdc 1min
Safety: Meets EN610950 and battery maintenance technical specifications, GB/T 31484-2015
Equipment weight: 60KG