Accunergi Modular Battery Charger & Rectifier System
The Accunergi Modular Battery Charger & Rectifier is a high-frequency switching modular power system designed to deliver reliable and expandable DC power across output voltages ranging from 24V to 220V DC. Built using transformer-less technology proven in the telecommunications industry, the system provides a compact, lightweight, and space-efficient solution for applications requiring scalable and continuous DC power availability.
Its modular architecture allows the system to expand as load demand increases while maintaining the same physical footprint. With hot-swappable power modules and configurable redundancy options, it ensures uninterrupted operation and simplified maintenance without system shutdown.
System Architecture & Design Advantages
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Modular Scalability: Expandable for higher load demand and larger battery capacities
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Hot-Swappable Modules: Faulty modules can be replaced online without power interruption
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Redundancy Options: Supports 1+1, n+1, or n+2 redundancy configurations
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Compact Footprint: Lightweight design with unchanged footprint even when capacity increases
Technical Specifications
Input & Output Characteristics
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Input Supply:
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Single-phase: 150–280VAC
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Three-phase: 260–485VAC
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Frequency: 50Hz / 60Hz
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Nominal DC Output Voltages: 24V, 30V, 48V, 110V, 220V
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Voltage Stability: ±1% for 10–100% load variation
Efficiency, Cooling & Protection
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Soft-Start Function: 3–8 seconds walk-in
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Protection Features: Surge suppression and short-circuit protection via current limiting at 110% of rated current
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Cooling System: Automatic fan speed control based on load percentage, extending fan service life to 7–8 years
Monitoring, Control & System Security
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Built-in Microprocessor with NMS: Real-time system display and remote monitoring capability
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Event Logging: Stores up to 1000 historical events on a FIFO basis for diagnostics
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Security Access: Password-protected calibration with Monitor and Admin access levels
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Fail-Safe Operation: Rectifier continues operating even if the controller unit fails
Physical Configuration & Installation Options
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Shelf-Rack Options: 1U, 3U, 6U, or 8U sizes compatible with 19″ or 23″ rack cabinets
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Mounting Configurations:
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Wall-mounted (standard IP20)
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Floor-standing cabinet (standard IP21) with customizable IP ratings
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Finish: Epoxy powder-coated in RAL 7035 Light Grey
