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20 kwh inverter battery - PKNERGY
20 kwh inverter battery - PKNERGY
20 kwh inverter battery - PKNERGY
20kwh solar charging battery home backup - PKNERGY
20kwh solar charging battery home backup - PKNERGY
stackable battery home backup - PKNERGY
stackable battery home backup - PKNERGY
20kwh LiFePO4 battery home backup - PKNERGY
20kwh LiFePO4 battery home backup - PKNERGY

5-20kwh battery home backup for solar system

Product Name

PK-AIO-2

Application

Residential, Home, Solar ESS, Solar backup system

Battery Type

Stackable Battery

Controller Type

MPPT

Cycle Life

Over 7000 times

Dimension(4pcs battery)

L655*W197.5*H2120mm

Cell Type

LiFePO4 Prismatic battery Cell

Certificate

5-20kwh battery home backup for solar system
5-20kwh battery home backup for solar system
5-20kwh battery home backup for solar system
5-20kwh battery home backup for solar system
Quotation Datasheet

20kWh Battery Product Introduction

The PKNERGY 20kWh stackable home battery backup system offers a stylish design and flexible energy storage. Users can customize their system by stacking up to four LiFePO4 battery modules, achieving a total of 20kWh, enough to power an entire home through a night without electricity.

15 years Long Life Span

Intergrated BMS Overall Protection

● 7000 Cycles @90% DOD
● Up to 20kwh
● Saves 50% of Installation Space

5-20kwh battery home backup for solar system

15 years Long Life Span

Intergrated BMS Overall Protection

● 7000 Cycles @90% DOD
● Up to 20kwh
● Saves 50% of Installation Space

20kWh Battery Product Introduction

Comprehensive Whole-Home Backup Solution

This system integrates key components such as the inverter, battery, and BMS into a single solution. With PKNERGY, compatibility is ensured—simply connect to your grid or solar panels for a fully operational home backup system in as little as 10 minutes.

Stackable Home Battery Backup Module

The PKNERGY 20kWh home backup system uses premium Grade A LiFePO4 cells, which offer:

  • Higher energy density than traditional SLA batteries
  • Three times the lifespan of lead-acid batteries, with up to 15 years of use
  • Compact design, providing powerful and reliable energy in a smaller footprint

Each 51.2V 100Ah LiFePO4 battery module provides 5kWh of storage and can be stacked to meet your energy needs.

PKNERGY’s 20kWh battery system supports both high-voltage and low-voltage versions to accommodate diverse user requirements.

Can store large amount of power

The PKNERGY 20kWh stackable home battery backup system offers a stylish design and flexible energy storage. Users can customize their system by stacking up to four LiFePO4 battery modules, achieving a total of 20kWh, enough to power an entire home through a night without electricity.

Flexible Stackable battery modules - PKNERGY

20kWh Battery Product Introduction

Comprehensive Whole-Home Backup Solution

This system integrates key components such as the inverter, battery, and BMS into a single solution. With PKNERGY, compatibility is ensured—simply connect to your grid or solar panels for a fully operational home backup system in as little as 10 minutes.

Stackable Home Battery Backup Module

The PKNERGY 20kWh home backup system uses premium Grade A LiFePO4 cells, which offer:

  • Higher energy density than traditional SLA batteries
  • Three times the lifespan of lead-acid batteries, with up to 15 years of use
  • Compact design, providing powerful and reliable energy in a smaller footprint

Each 51.2V 100Ah LiFePO4 battery module provides 5kWh of storage and can be stacked to meet your energy needs.

PKNERGY’s 20kWh battery system supports both high-voltage and low-voltage versions to accommodate diverse user requirements.

Can store large amount of power

The PKNERGY 20kWh stackable home battery backup system offers a stylish design and flexible energy storage. Users can customize their system by stacking up to four LiFePO4 battery modules, achieving a total of 20kWh, enough to power an entire home through a night without electricity.

Stackable Battery Pack Specifications

Product image 5-20kwh battery home backup for solar system 5-20kwh battery home backup for solar system 5-20kwh battery home backup for solar system
Quantity of Battery 2 3 4
Rated Capacity [kWh] 10.6 15.9 21.2
Nominal voltage[V] 204.8 307.2 409.6
Dimensions[W*D*Hmm] 655*197.5*1490 655*197.5*1805 655*197.5*2120
Weight[kg] 145 194 243
Operating temperature[℃] Charge:-10~+55/Discharge:-20~+60
Storage temperature[℃] 35°C(≤30day,20~40% SOC)
Highest operation altitude[m] 2000
Ingress protection level IP65
5.3 kWh Stackable ESS battery-High-voltage
Battery parameters
Nominal capacity[Ah] 52
Standard charge/discharge current[A] 26
Battery type LFP(LiFePO4)
Certification situation
Certificate CE62619、EMC、UN38.3、MSDS
Energy Controller 4.0-12.0kW-Three-phase
Energy controller 4.0TP 5.0TP 6.0TP 8.0TP 10.0TP 12.0TP
PV input parameters
Suggest Max.input power [kW] 6 7.5 9 12 15 18
Max.DC input voltage [V] 1000
Rated DC input voltage[V] 620
MPPT operating voltage range[V] 120~950
MPPT Qty. 1/1
Qty.of Single MPPT input channels 15/15
Max.input current[A] 20/20
Max.short-circuit current[A]
AC parameters
Rate output power[kW] 4 5 6 8 10 12
Max.output apparent power[kVA] 4.4 5.5 6.6 8.8 11 13.2
Max.input apparent power[kVA] 8 10 12 16 16.5 16.5
Battery max.charging power[kW] 4 5 6 8 10 12
Rated voltage 3L/N/PE;220/380V;230/400V;240/415V
Grid frequency [Hz] 50/60
Max.output current[A] 6.7 8.3 10 13.3 16.5 20
Off-grid-rated output power[kW] 4 5 6 8 10 12
Off-grid max.output apparent power[kVA] 4.4 5.5 6.6 8.8 11 13.2
UPS switch time[ms] <10
Efficiency parameters
Max.PVconversion efficiency 98.10% 98.20%
Europe efficiency 97.30% 97.40%
Communications
Communication protocol CAN,RS485,WiFi/LAN (optional)
Certification situation IEC62109、IEC62477-1、EN 61000、EN50549-1、VDEAR-N4105、C10/11、EN 50549-1、CE1-021、TORErzeuger、IEC/EN 62116、IEC61727、IEC60068、IEC61683、UNE 217001.UNE217002、G98、NRS 097-2-1

Key Features of the 20kWh Battery

Millisecond Power Switching

Instantly switches to battery power during outages, protecting devices from unexpected interruptions.

15-Year Long Cycle Life

Enjoy peace of mind with LiFePO4 batteries, which require far less maintenance than lead-acid alternatives.

Flexible Modular Design

Stack compatible modules to customize capacity, ensuring energy is available where it’s needed most.

Remote Monitoring and Control

Use the PKNERGY mobile app to monitor and control your battery system anytime, anywhere.

Battery Home Backup for Solar Charging

The 20kWh battery is designed for seamless integration with solar panels. Users can set charging and discharging schedules, storing energy during the day and using it at night or during cloudy periods. The built-in inverter efficiently converts AC to DC power.

stackable battery home backup with solar system - PKNERGY
5-20kwh battery home backup for solar system

Why Choose PKNERGY for Home Backup Power?

With 18 years of experience, PKNERGY specializes in producing high-quality lithium batteries for both commercial and residential energy storage systems. All PKNERGY products meet industry standards, including CE62619, EMC, UN38.3, and MSDS certifications. Additionally, customers benefit from lifetime technical support—from system design to everyday usage, we offer reliable and professional assistance.

FAQs

The runtime depends on your energy consumption. On average, 20kWh can power a typical household for 8-12 hours, covering essential appliances and electronics.

The number of solar panels depends on panel efficiency and sunlight availability. Typically, 10-15 panels rated at 400W each would suffice to recharge a 20kWh battery system.

PKNERGY calculates the price based on the number of batteries purchased, because the shipping cost of batteries is relatively expensive and occupies a large part of the order. So we need to help you calculate the price based on your order.

Related Products

Why PKNERGY

Tailor Made for Larger Residential & Light Commercial

Technology

Technology

During more than 20 years of battery manufacturing, PKNERGY has mastered a number of technologies and techniques, allowing for better products.
Safety

Safety

Various tests are done at PKNERGY to ensure the safety of our products for our customers.
Service

Service

PKNERGY has a professional sales team to provide you with the best solutions and after-sale services.
Custom Design

Custom Design

Nearly 20 years in the battery industry, PKNERGY Battery is specialized in R&D and manufacturing battery power systems according to the customer’s unique needs.
Sustainable Development

Sustainable Development

PKNERGY strives to maintain an environmentally friendly process of operation. This allows us to create high quality products whilst being sustainable.
Innovation R&D

Innovation R&D

Constant innovation at PKNERGY is backed up by high standards of research and design policies.We attach importance to the research and development of product technology innovation, invested a lot of financial and manpower in the development of new products, a number of innovation and new technology patent and protection
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5-20kwh battery home backup for solar system

Quality Control

Created the Safest & More Environmentally Future for Your Family

While focusing on research and development, we also pay attention to quality. ISO9001 certification in 1999, ISO14001 certification in 2004, OHSAS18001 and ISO45001 in 2016, IATF16949 certification in the same year; “National Integrated Management System” in 2018; ISO13485 certification in 2020, related products can provide GB, CE, UN, UL and other international certification.

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