5MWh UL9540 Certified BESS Battery Container | Off-Grid Energy Storage System for Commercial & Industrial Applications
The GSL-BESS-372K is a high-voltage lithium iron phosphate (LFP) energy storage system designed for commercial and industrial applications. Equipped with Grade A battery cells, it features a nominal voltage of 1331.2V and supports up to 140A charging current. It is ideal for microgrids, backup power, and off-grid peak shaving. With certifications including UL1973, UL9540, UL9540A, IEC62619, and UN38.3, and a 10-year warranty, this system offers a reliable energy optimization solution for industrial parks, office buildings, and more.
Product Description
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Model: GSL-BESS-372K
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Battery Type: Lithium Iron Phosphate (LFP), Grade A Cells
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Electrical Specifications
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Nominal Voltage: 1331.2 V
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Charging Voltage Range: 1164.8 ~ 1497.6 V
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Rated Capacity: 372.7 mAh (Nominal Capacity: 372.7)
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Charging Current: 140 A
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Mechanical Dimensions
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External Size (excluding inverter): 1300 × 1300 × 2340 mm
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Net Weight: 3500 kg
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Environmental Conditions
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Operating Temperature: -20°C ~ 55°C
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Storage Temperature: 0°C ~ 35°C
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Certifications & Safety
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Certified to UL1973 / UL9540 / UL9540A / IEC62619 / UN38.3
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Built-in safety protections meeting international standards
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Applications
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Industrial parks, commercial office buildings, microgrids, backup power, off-grid peak shaving
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Warranty & Customization
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Warranty: 10 years
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Customizable (OEM/ODM) with private label authorization available
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FAQ
Q1: What is the minimum order quantity (MOQ)?
A: We accept small-batch orders. MOQ is negotiable based on project requirements.
Q2: What is the lead time?
A: Standard lead time is 30~45 days after receipt of deposit, depending on order quantity and customization needs.
Q3: Do you provide installation guidance and commissioning support?
A: Yes, we offer remote technical guidance and can arrange on-site engineer support at additional cost.
Q4: Can the battery system be expanded in parallel?
A: Yes, the system supports modular parallel connection for easy capacity expansion.
Q5: How are warranty claims handled?
A: We provide free replacement or repair services under the warranty terms. Detailed conditions are stated in the warranty agreement.
Q6: Is OEM/ODM service available?
A: Absolutely. We own the brand and can customize appearance, logos, software parameters, etc.
Why Choose US?
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✅ Globally Recognized Certifications – UL, IEC, UN and more, ensuring safety and smooth global shipping.
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✅ Grade A Cell Quality – Brand-new Grade A LFP cells deliver long cycle life and excellent consistency.
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✅ 10-Year Long Warranty – Far above industry average, reflecting our confidence in product durability.
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✅ Flexible Customization – Tailor capacity, dimensions, branding, and more to meet diverse project needs.
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✅ Professional After-Sales Support – Full lifecycle technical service and rapid response for trouble-free operation.
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✅ Proven Track Record – Successfully deployed in multiple industrial parks and office buildings with outstanding performance.
Product Specification Sheet
| Parameter | Value |
|---|---|
| Place of Origin | Shenzhen, Guangdong, China |
| Battery Type | Lithium Iron Phosphate (LFP) |
| Ordering Code | GSL-BESS Commercial & Industrial Energy Storage System |
| Model | GSL-BESS-372K |
| Rated Capacity | 372.7 mAh |
| Customization | Yes |
| Standard Voltage | 1331.2 V |
| Charging Current | 140 A |
| External Dimensions (Inverter not included) | 1300 × 1300 × 2340 mm |
| Application Type | Backup Power |
| Certifications | UL1973 / UL9540 / UL9540A / IEC62619 / UN38.3 |
| Compatible Product Model | Commercial and Industrial Energy Storage |
| Dimensions (short form) | 1300×1300×2340 |
| Rechargeable | Yes |
| Standard Capacity | 372 |
| Material | Lithium Iron Phosphate Battery |
| Product Name | GSL-BESS |
| Charging Voltage Range | 1164.8 ~ 1497.6 V |
| Storage Temperature | 0 ~ 35 ℃ |
| Operating Temperature | -20 ~ 55 ℃ |
| Net Weight | 3500 kg (3,500,000 g) |
| Application Scope | Microgrids, Backup Power, Off-grid Peak Shaving |
| Minimum Capacity | 372 |
| Warranty Period | 10 years |
| Cell Standard | Grade A Battery Cells |
| Factory Default Voltage | 1331.2 V |
| Load Voltage | 1331.2 V |
| Rechargeable (duplicate) | Yes |
| Nominal Capacity | 372.7 |
| Own Brand with Authorization | Yes |
| Material Composition | Commercial and Industrial Energy Storage Lithium Battery |
| Typical Use | Industrial parks, office buildings |
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