Battery Capacity
502.6kWh
840Ah / 598.4V LiFePO4 battery bank, pre-assembled inside the container.
Rated Power
250kW
Peak power 275kW. AC output 400V (−20% ~ +15%).
Container Form Factor
20ft
6058 × 2438 × 2591 mm, 11500 kg — standard shipping container.
Cycle Life
6000+ cycles
LiFePO4 cells with BMS, PCS and EMS fully integrated and factory tested.
Overview
The 500kWh BESS container is a fully pre-assembled battery energy storage system for commercial and industrial use. It ships factory pre-tested, and the plug-and-play design greatly cuts on-site construction and commissioning time. LiFePO4 cells bring high safety and long cycle life, making it a fit for peak shaving, solar-plus-storage, microgrid and backup power projects.
Battery packs, PCS, BMS, EMS and thermal control are all integrated inside one standard container — fast deployment without complex civil construction.
Suited to sites where building work is not practical
BMS + PCS + EMS together control the whole system: layered battery protection, real-time status monitoring and fault recording.
Over-charge, over-discharge, over-current and short-circuit protection
A dedicated thermal management system keeps the battery bank within its operating window, guaranteeing safe operation in harsh environments.
Selected for desert, coastal and high-temperature sites
Multiple containers can be paralleled for larger energy storage projects — buy the capacity your project has today.
Scale from 500kWh towards MWh-class plants
Works with photovoltaic systems, the utility grid and diesel generators for peak shaving, load shifting, microgrid and off-grid supply.
Excess solar is stored and released at peak price hours
Remote monitoring over 4G plus RS485 / CAN on the local bus, so operation and alarms are visible from anywhere.
OEM & ODM customization for EPC and distributors
System Topology
The container sits at the center of your site’s power system: solar, grid and diesel generation feed it, and it serves your loads while reporting everything to the cloud.
Ground-mount or rooftop PV feeds the container. Excess solar generation is stored instead of curtailed, and released when it is worth more.
The utility grid charges the battery bank through the electricity meter at off-peak tariff. AC output 400V (−20% ~ +15%), 361A rated current.
Existing diesel gensets keep running as backup — the BESS cuts their running hours and fuel burn, and covers loads while generators start.
Factory and mall loads are served around the clock, while the EMS reports operating data to the cloud platform over 4G for remote monitoring.
The whole flow is automatic: the energy management system decides when to charge, when to discharge and when to hold reserve capacity, so your facility always runs on the cheapest available power.
What’s Inside
This containerized energy storage system integrates the full power conversion chain, so nothing has to be sourced or integrated separately on site.
840Ah / 598.4V battery bank rated 502.6kWh, with over 6000 cycles of expected life.
Layered battery protection with real-time monitoring, balancing and fault recording.
Rack-mounted modular PCS rated 250kW (peak 275kW), 361A rated / 397A maximum AC current, supporting parallel connection of multiple machines.
Schedules charging and discharging to the local tariff and dispatch requirements.
Keeps the container interior and the battery bank within the designed operating temperature range.
Power distribution and fire control system inside the container, controlling the system operating status and risks.
Specifications
Complete technical parameters for the 250kW / 502.6kWh container. Need a stamped datasheet for tender submission? Request it via the form at the bottom of this page.
| Item | H098-500kWh |
|---|---|
| System | |
| Product Model | H098-500kWh |
| Battery Capacity | 840Ah / 598.4V (502.6kWh) |
| Rated Power | 250kW |
| Peak Power | 275kW |
| Battery Type | LiFePO4 |
| Battery Cycle Life | Over 6000 cycles |
| Electrical | |
| Battery Voltage Range | 467.5–682.5V |
| AC Output Voltage | 400V (−20% ~ +15%) |
| AC Rated Current | 361A |
| Maximum AC Output Current | 397A |
| Communication | RS485 / CAN |
| Wireless Communication | 4G communication supported |
| Mechanical & Environment | |
| Dimensions (L×W×H) | 6058×2438×2591 mm (20ft container) |
| Weight | 11500kg |
| Discharge Temperature | −20 °C ~ 50 °C |
| Charging Temperature Range | −5 °C ~ 50 °C |
| Storage Temperature | Recommended 0 °C ~ 45 °C |
| Protection & Certification | |
| System Protection | Over-temperature, over-voltage, over-current, over-charge, over-discharge, load short-circuit and overload protection |
| Certification Standards | IEC / UN38.3 / MSDS / RoHS |
Specifications are subject to the documents shipped with each unit. Certifications can be provided on request to meet specific regional grid and project requirements.
Applications
A middle-capacity container for industrial sites that have outgrown cabinet solutions but do not yet need megawatt-hour scale.
Store off-peak energy and discharge at peak to bring down monthly electricity bills.
Pair with a PV plant, store excess generation and release it during high-price periods.
Off-grid microgrid duty plus emergency backup for critical loads.
Buffer charging-station draw and combine with diesel generator hybrid supply.
Reliable power where the grid is weak, unstable or simply not available.
Centralized demand management and transformer capacity relief.
Packing & Delivery
The container leaves the factory fully pre-tested. On site it needs a prepared foundation, cable connection and grid tie — our team supports acceptance.
Capacity, grid connection and site conditions confirmed against your load profile and local tariff structure.
Scheduled per project
Built to the confirmed configuration, with cell and module batch records kept on file.
Scheduled per project
Every unit completes full-function FAT testing before shipment, with multiple QA re-tests.
Completed pre-shipment
Reinforced packing plus standard hoisting points, suited to sea and land transport.
Standard export packing
Shipping documents and parameter sheets travel with the unit; we support customs clearance and site acceptance.
Per shipping schedule
On-site wiring and grid connection, then onboarding to the cloud platform for remote monitoring.
Depends on site conditions
FAQ
The questions we are asked most often about this containerized energy storage system.
Get a Quote
Share your site type, location and approximate load, and we will come back with a capacity recommendation and a quotation.
Who We Are
Huada New Energy (Huizhou Huada Technology Co., Ltd.) is a professional energy storage manufacturer with a complete product portfolio — portable power stations, household energy storage systems and commercial & industrial (C&I) solutions. Starting from lead-acid battery production, we have grown into an advanced lithium technology manufacturer.
We are backed by multiple invention patents, utility model patents, design patents and High-Tech Enterprise certification. With a professional R&D team, modern production facilities and a global energy monitoring data center, we provide reliable OEM/ODM services for customers worldwide.
Advanced lithium battery manufacturer, upgraded from lead-acid production.
Reliable OEM/ODM services for customers worldwide.
Global energy monitoring data center for after-sales support.
High-Tech Enterprise certification with a full patent portfolio.
