Sunket EU Germany Stock Stacked Lithium Iron Batteries Pack 20kw LIFEPO4 Battery 20kwh Solar Energy Storage Battery

The LFP 9kWh/HV home battery is modular in 2.88 kWh increments, providing a capacity range of 8.64kWh-28.8kWh per stack. This also allows for easy servicing and future expansion. With continuous output at up to 14.4kW, true full-home backup is here.

Product Introduction

The lithium iron phosphate battery (LiFePO4 or LFP) is the safest of the mainstream lithium battery types. A single LFP cell has a nominal voltage of 3.2V. A 57.6V LFP battery consists of 18 cells connected in series. LFP is the chemistry of choice for very demanding applications.

Key Features:

Rugged - It can operate in deficit mode during long periods of time.
High round trip efficiency.
High energy density - More capacity with less weight and volume.
High charge and discharge currents - Fast charges and discharges are possible.
Flexible charge voltages.

Technical Specifications

Module Type	LFP 9kWh	LFP 12kWh	LFP 15kWh	LFP 18kWh	LFP 21kWh	LFP 24kWh	LFP 27kWh	LFP 30kWh
Usable Energy	8.64kWh	11.52kWh	14.40kWh	17.28kWh	20.16kWh	23.04kWh	25.92kWh	28.80kWh
Battery Module	LFP 3000 / HV : 57.6V 50Ah
Number of Modules	3	4	5	6	7	8	9	10
Nominal Voltage	172.8V	230.4V	288V	345.6V	403.2V	460.6V	518.4V	576V
Operating Voltage Ranges	135-197.1V	180-262.8V	225-328.5V	270-394.2V	315-459.9V	360-525.6V	405-591.3V	450-657V
Nominal Dis-/Charge Current	25 / 50A
Max. Charge Voltage	197.1V	262.8V	328.5V	394.2V	459.9V	525.6V	591.3V	657V
Weight	102kg	131kg	160kg	189kg	218kg	247kg	276kg	305kg
Dimension(mm)	670330697	670330855	6703301013	6703301171	6703301329	6703301487	6703301645	6703301803
Safety	CE, UN38.3, IEC62619, IEC63056, IEC62477

Compatible Inverters

Professional Packing

Project Case

Recommend Products

Wall Mounted Series

Wall Mounted Battery Solution
48v / 51.2v
5kWh (100AH) / 10kWh (200AH)

Rack Mounted Series

Rack Mounted Battery Solution
51.2V
5kWh - 80kWh

Stack Mounted Series

Stack Mounted High Voltage Battery Solution
Voltage 172.8V - 576V
9kWh - 30kWh

Frequently Asked Questions

1. What is the lifespan of these LFP batteries?

LFP (Lithium Iron Phosphate) batteries typically offer over 6,000 cycles at 80% Depth of Discharge, providing a long service life of 10-15 years depending on usage.

2. Can I expand the battery capacity later?

Yes, the modular design allows for easy expansion. You can start with a 9kWh system and add more modules in 2.88kWh increments up to 28.8kWh per stack.

3. Why is LiFePO4 chemistry preferred for home storage?

LiFePO4 is the safest lithium chemistry available. It has high thermal stability, is non-toxic, and has a very low risk of thermal runaway compared to other lithium-ion types.

4. Which inverters are compatible with this HV system?

This high-voltage system is compatible with major global hybrid inverter brands. Please refer to our compatible inverter list or consult our technical team for specific models.

5. Is the system suitable for outdoor installation?

The system is designed with rugged protection, but we recommend installation in a sheltered, temperature-controlled environment to maximize battery efficiency and lifespan.

6. What safety certifications do these batteries have?

Our LFP modules are fully certified with CE, UN38.3, IEC62619, IEC63056, and IEC62477 standards, ensuring they meet rigorous global safety requirements.

Product Detail

Sunket EU Germany Stock Stacked Lithium Iron Batteries Pack 20kw LIFEPO4 Battery 20kwh Solar Energy Storage Battery