BK-6804HV/100 30V100A EV Power Lithium Battery Pack Cycle Testing System

BK-6804HV/100 30V100A EV Lithium Battery Group Cycle Lifetime Performance Tester

Model：BK-6804HV/100 (30V100A)

Ⅰ.The main performance of the equipment

1.Specially designed and manufactured for performance testing and cycle life testing of rechargeable battery packs, especially suitable for R&D departments. It can detect lithium-ion batteries that meet the voltage requirements.

2.It is designed and manufactured in strict accordance with national test standards, and can test all the electrical performance test items of lithium-ion batteries in the standard.

3.The device is designed with 1 set of CPU and has 4 constant current sources. Each channel independently controls the charging and discharging process. The charging and discharging current and constant voltage value are individually programmed and set by the computer.

4.With multiple test modes, it can realize constant current and constant voltage charging, constant power charging, constant power discharging and constant resistance discharging.

5.Modular design and manufacture, reliable and stable long-term operation, easy maintenance.

6.The four-wire method is adopted for measurement, which eliminates wiring and contact errors to the maximum extent and has high test accuracy.

7.Using automatic current feedback adjustment technology to overcome the non-linear factors of automatic current setting, and to ensure the current setting accuracy within the full range.

8.Using 16-bit high-precision A/D converter, each channel is equipped with an independent 16-bit D/A circuit, and the resolution of current and voltage sampling and adjustment is high.

9.The current and voltage are divided into high and low levels, which can ensure the accuracy within the range.

10.With data power failure protection function.

11.The upper computer can set up to 64 steps and 9999 cycles, and can display the cycle life curve.

12.Each host computer can connect 1-16 sets of single-chip systems.

13.Supporting software functions.

A.Realize functions such as centralized measurement and control of equipment, data processing and report making, and have multiple protection functions such as voltage abnormality protection and current abnormality protection.

B.Provide powerful data processing functions, provide a variety of curve modes, such as voltage-time, current-time, internal resistance-time and its superimposed curve, characteristic value, cycle graph, etc., and provide flexible programming options for easy use.

Data export function, can export test data to Excel, Word, Access or text file;

 Ⅱ. The main technical parameters

Ⅲ.Energy-saving principle block diagram of equipment:

When charging:

●Charging adopts switching constant current source, which has higher energy conversion efficiency than traditional linear constant current source;

●Energy flow direction: (power grid + energy generated by discharge equipment) → AC/DC two-way inverter power supply → constant current source module → battery

When discharging:

●Energy flow direction during discharge: battery→constant current source module→AC/DC two-way inverter power supply→battery→(discharging equipment + grid)

When discharging, most of the energy will flow through the factory's AC bus to the charging equipment and other energy-consuming equipment (such as air conditioning, lighting, office equipment, etc.), and there is still excess energy that will be fed back to the grid.

Ⅳ.Equipment drawing:

Ⅴ. Screenshot of battery testing software interface and curve: