Polar ESS 6 kW 5.2 kWh Lithium-Ion Battery – Compact, Safe, and Scalable
Polar 6KW 5.2 KWH
The Polar ESS ALPS Series 5.2 kWh 51.2V Li-ion Battery is a versatile and reliable residential energy storage solution designed to enhance solar self-consumption and provide backup power when you need it most. Often sold as part of the Combo Deal Polar ESS 6 kW 5.2 kWh Plus Accessories, this system combines high-performance battery technology with the essential components for a complete home solar energy setup.
Key Features
- Compact & Modular: Each battery stores 5.12 kWh of usable energy and can be stacked or connected in parallel to expand total capacity.
- High Performance: Rated for over 6,000 cycles with a high depth of discharge (~92%), ensuring long-term, reliable operation.
- Safe & Durable: Uses LiFePO4 chemistry, known for excellent thermal stability, minimal degradation, and robust safety.
- Complete Combo Kit: Includes inverter, energy meter, BMS cables, DC cables, disconnector switches, battery brackets, and PV labels for easy installation.
- Flexible Installation: Can be rack-mounted, wall-mounted, or floor-standing, making it ideal for both retrofits and new solar setups.
- Battery Management System (BMS): Protects against over-charge, over-discharge, over-current, and short-circuit events while balancing cell voltages for optimal performance.
Why Choose the Polar ESS 6 kW 5.2 kWh Battery?
1. Reliable Home Backup Power
With 5.2 kWh of usable energy per module, the Polar battery provides enough storage to run essential household loads during grid outages or peak-tariff periods.
Polar 6KW 5.2 KWH
2. Expandable & Scalable
If your energy needs grow, you can easily connect multiple batteries in parallel — up to five units — to achieve more than 25 kWh of total storage without replacing your original system.
3. Smart & Safe Technology
LiFePO4 cells combined with the BMS system ensure superior safety, efficient charge/discharge, and a long service life. It’s a reliable choice for daily cycling and solar energy storage.
4. All-in-One Combo Solution
The Polar ESS 6 kW 5.2 kWh kit includes everything you need:
- Hybrid inverter 6 kW
- Battery mounting brackets and cables
- Programmable energy meter with CT
- AC switch disconnectors
- Safety labels for PV systems
This ensures a smooth installation and seamless integration into your solar setup.
5. Energy Independence & Savings
By storing excess solar power during the day and using it when needed, you can reduce electricity bills, maximize solar self-consumption, and ensure reliable backup power without relying entirely on the grid.
Technical Specifications
- Battery Type: LiFePO4 (Lithium Iron Phosphate)
- Nominal Voltage: 51.2 V
- Usable Capacity: 5.12 kWh per module
- Rated Cycles: 6,000+
- Depth of Discharge: ~92%
- Installation: Wall-mounted, floor-standing, or rack-mounted
- Included Accessories: Hybrid inverter, energy meter, DC cables, AC disconnectors, battery bracket, BMS cables, PV labels
The Polar ESS 6 kW 5.2 kWh Battery is a smart, safe, and scalable energy storage solution for modern homes. Perfect for maximizing solar self-consumption, reducing electricity costs, and providing reliable backup power, it’s an ideal entry point into residential energy independence.
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