Description
The Pylontech 3.5kWh Lithium-Ion Solar Battery is a reliable and efficient energy storage solution designed for residential and commercial solar systems. Utilizing advanced lithium iron phosphate (LiFePO4) technology, this battery delivers superior performance, safety, and durability, making it an excellent choice for renewable energy storage.
Key Features
- High Energy Capacity:
- Offers 3.5kWh of usable energy storage to support household or commercial energy needs effectively.
- Advanced Lithium Iron Phosphate Technology:
- Ensures high energy density, long lifespan, and enhanced safety for stable and reliable performance.
- Scalable Design:
- Modular architecture allows for easy expansion by connecting multiple batteries in parallel to increase storage capacity.
- Long Cycle Life:
- Provides over 6,000 cycles at 80% Depth of Discharge (DoD), ensuring years of dependable service.
- Efficient Energy Management:
- Low self-discharge rate and high round-trip efficiency for optimal energy usage and storage.
- Compact and Lightweight:
- Space-saving design makes installation easy and flexible for different applications.
- Robust Battery Management System (BMS):
- Integrated BMS protects against overcharge, over-discharge, and short circuits, enhancing safety and longevity.
- Wide Compatibility:
- Compatible with leading inverter brands, making it versatile for various solar installations.
- Eco-Friendly Solution:
- Promotes renewable energy adoption with sustainable and environmentally friendly materials.
Specifications
| Parameter | Value |
|---|---|
| Battery chemistry | Lithium Iron Phosphate (LiFePO₄) |
| Nominal voltage | 48 Vdc |
| Nominal capacity | ~3.55 kWh (sometimes rounded “3.5 kWh”) |
| Usable capacity | ~3.37 kWh in one spec sheet |
| Depth of Discharge (DoD) | Up to ~95% in some listings |
| Cycle life | > 8,000 cycles at ~25 °C (in one spec sheet) Other sources say ~6,000 cycles at 80% DoD. |
| Dimension (HxWxD) | 442 × 410 × 132 mm (in many specs) |
| Weight | ~32 kg |
| Max continuous charge/discharge current | Approx. 37 A recommended; peak discharge currents quoted ~74-89 A for 60 s & 90-200 A for 15 s in one spec. |
| Communication interfaces | RS485, CAN (sometimes RS232 also mentioned) |
| Operating temperature – charge | 0 °C to +50 °C |
| Operating temperature – discharge | -10 °C to +50 °C |
| Storage temperature | -20 °C to +60 °C |
| Maximum parallel units | Up to 16 in many specs for one string. Some resellers mention up to 40 units in specific firmware/region. |
| Ingress protection | IP20 (indoor use) in one listing. |
| Certifications | UL1973, UL1642, UL9540A, VDE2510-50, IEC632056/62619/62040/62477-1 etc (depending region) |
| Warranty | In many markets 10 years (or as per region) listed. |
The Pylontech 3.5kWh Lithium-Ion Solar Battery offers dependable performance, long lifespan, and easy scalability, making it an ideal choice for storing solar energy and ensuring energy independence.

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