Energy Storage PACK Comprehensive Tester

Energy Storage PACK Comprehensive Tester (also known as ESS PACK Test System, PACK EOL Tester, ATE Test System) is core integrated testing equipment used in the production, R&D and quality inspection of energy storage battery packs. It is used to automatically complete the full-process verification of electrical performance, BMS functions, safety regulations, communication and other items in one test.

1.1. Core Definition & Application

●Definition: An automatic testing device integrating high-precision charge and discharge, BMS communication, safety testing, working condition simulation and data acquisition & analysis.

●Application: final inspection of finished energy storage PACK (EOL), R&D performance verification, after-sales maintenance, to ensure that all indicators such as voltage, capacity, internal resistance, BMS protection, insulation and communication are qualified.

●Applicable to: Residential / C&I energy storage, portable energy storage, large-scale energy storage power stations (LFP, NCM, sodium-ion batteries, etc.).

2. Core Testing Functions

1.Electrical Performance Test

○Voltage / current / capacity / internal resistance (DCR / AC-IR) test

○Charge-discharge efficiency, cycle life, pulse test

○Overcharge / over-discharge / over-current / short-circuit protection verification

2.BMS Function Test

○CAN / LIN communication, accuracy of SOC / SOH / SOP

○Consistency of cell voltage / temperature collection

○Relay control, balancing function, fault diagnosis

3.Safety Test

○Insulation resistance (IR), withstand voltage (AC / DC Hi-pot)

○Ground continuity, leakage current detection

4.Working Condition & Environment Simulation

Dynamic working condition simulation, high-low temperature linked test

Energy feedback (efficiency ≥95%), data traceability

3.Main Equipment Types

●Cabinet-type Integrated Test System

○Voltage: 100V ~ 1500V

○Current: 50A ~ 500A+

○Power: 50kW ~ 500kW+

○Structure: Integrated cabinet with charge-discharge, safety, BMS, industrial control and fixtures.

EOL End-of-line Testing Machine

●Features: high speed (1~5 mins per unit), one-key code scanning, MES docking, automatic grading.

○Application: 100% full inspection at the end of PACK production line.

●Portable Tester

○Features: Small size, easy to move, basic functions.

○Application: After-sales maintenance, on-site sampling, small-batch verification.

4.Key Technical Parameters

●Voltage Range: 200V ~ 1500V

●Current Accuracy: ±0.02% ~ ±0.05% FS

●Voltage Accuracy: ±0.01% ~ ±0.05% FS

●Internal Resistance Accuracy: ±0.5% ~ 1%

●Energy Feedback Efficiency: ≥95%

●Communication Interfaces: CAN 2.0A/B, RS485, Ethernet, compatible with DBC files

●Test Channels: 1~4 channels

5.Core Advantages

1.One-stop full test: Replaces multiple separate devices and completes all items with one connection.

2.High precision & reliability: 4-wire measurement, high-speed sampling, closed-loop control.

3.Automatic & efficient: Automatic process, automatic report, automatic loading & unloading.

4.Data traceability: Full parameter storage, MES docking, meeting export certifications (CE / UL).

5.Energy-saving & safe: energy feedback, high-voltage interlock, emergency stop, over-temperature protection.

6. Selection Criteria

1.Voltage Level: Residential (200V~600V), C&I (1000V~1500V)

2.Current / Power: Match the maximum charge-discharge current of the PACK

3.Function Requirements: High-speed automation for production line EOL; full-function + simulation for R&D

4.Compatibility: Support BMS communication protocol, DBC import, multi-brand PACK adaptation

5.Capacity: Single / multi-channel, test cycle time, energy feedback demand

                                                                    Application Scenario