BBU Battery Backup Module Test Solutions

From Rack-Level Backup to High-Voltage Systems — Validate Uninterrupted Power with Confidence

Reproducible | Quantifiable | Traceable BBU Validation

Why CHEN TECH ELECTRIC?

AI, cloud computing, and HPC are pushing rack power density to new levels, accelerating the shift from conventional UPS systems to rack-level Battery Backup Units (BBUs). Today, BBU validation goes far beyond confirming discharge capability. Engineers must verify backup runtime, response time after a DC bus voltage drop, stability under high-voltage and high-power conditions, and long-term State of Health (SOH). CHEN TECH ELECTRIC brings these requirements together in a dual-platform architecture: BT-2000 for low-voltage applications and PBT-2000 for high-voltage systems. Both are managed through the unified iBest software platform and can be integrated with temperature chambers, BMS communications, and ES/ET measurement modules to create a reproducible, traceable, end-to-end validation environment.

Solution Overview

One platform strategy for BBU testing from 48V to high-voltage systems. BT-2000 is optimized for 48V Core Pack applications, while PBT-2000 supports 600V, 800V, and 1000V high-voltage architectures with regenerative efficiency of up to 95%. Together, they help R&D, quality, and production teams validate backup runtime, transient switching, cycle life, SOH, and BMS interaction.

Key Validation Challenges

Dual-Platform Validation Architecture

Choose the right test platform for each voltage level — from cell-level development to complete HV Pack validation:

Core Test Capabilities

Low Voltage | BT-2000 + iBest (~48V Core Pack / OCP)

• Recommended configurations: 60V/60A and 60V/100A; higher-current options include 60V/300A and 100V models. For cell-level development, 5V high-current systems are available.
• Validate capacity and backup runtime, charge/discharge performance, cycle durability, and DC bus / power-loss scenarios.
• Run pulse and dynamic-power profiles (Pulse / HPPC), application waveforms, and DCIR / ACIR measurements.
• High-precision measurement at ±0.02% F.S., charge/discharge transition in <5 ms, four current ranges, and modular multi-channel expansion.

High Voltage | PBT-2000 + iBest (800V Recommended)

• Supports 600V / 800V / 1000V systems, 100–500 kW power levels, and 200 / 600 / 1000A current configurations.
• Designed for high-power charge/discharge, cycle durability, Pulse / HPPC, FUDS / DST, and user-defined waveform testing.
• Fast transition in <2 ms, regenerative efficiency up to 95%, PF >0.99, plus dual operating modes for battery testing and battery simulation.

Advanced Integration Options

• Temperature Chamber — Validate backup performance and protection behavior across different temperature conditions.
• BMS Data Collector — Verify protection logic, dynamic charging strategies, and stage-transition conditions via CAN / Modbus / SMBus and other interfaces.
• ES-100B — Monitor individual cell voltages and voltage consistency.
• ET-100B/C — Monitor temperatures and hotspots at multiple measurement points.
• High-Voltage Fixtures & Interlocks — Add isolation and interlock protection for safer high-voltage testing.

Recommended Test Packages

One Software Platform: iBest

iBest provides a unified environment for creating, executing, monitoring, and analyzing BBU test procedures — reducing training effort and making test workflows easier to reuse across projects.

• Process Setup — Variable-based cutoff conditions, C-rate settings, process preview, and configurable protection limits.
• Test Modes — HPPC / DST / FUDS / Waveform / Pulse / DCIR / CP.
• Real-Time Monitoring — Live curves, scheduled pause, resume testing, and dual-layer protection.
• Data & Analysis — Reports, CSV / Excel export, dQ/dV, and SOC analysis (optional).
• System Integration — Temperature chambers, CANbus / BMS, external measurement equipment, and MES integration (optional).

Integrated Safety by Design

Safety is built around a layered workflow: Detection → Protective Action → Event Traceability. For high-voltage test environments, additional isolation and interlock measures can be incorporated to help protect operators, the DUT, and the test facility.

A typical system connects iBest on a PC with BT-2000 or PBT-2000 charge/discharge equipment, while integrating a temperature chamber, BMS communications, ES-100B voltage acquisition, and ET-100B/C temperature acquisition. The result is a single test environment for performance, communications, and environmental validation.