20kwh Battery systems, Energy storage system

RJ is a lithium battery Manufacturer for over 16years, recognized by customers from Australia,Europe and North America. We offer Top quality with very good price for lithium lifepo4 batteries! RJ also has excellent partners who work with us for solar inverter, solar panels, solar charger mppt, with which RJ is capable of provding professional turnkey solutions to various applications for solar off grid and on grid system!

For 20Kwh Solar off grid system,  a basic example configuration as below：

1. 20kwh RJ Powerwall battery

2. 6KW RJ Hybrid Inverter

3. 10pcs 360W solar panels, together 3600W

4. 70A solar charger Mppt
   

Note this system is expansible, plug and play, you can simply add more lithium batteries to make a larger capacity system in the future. 

Besides the basic configuration we recommend, you can also do with your own preference. we have different optionsl for you, pLS check out different options in our website:

Features

•          More than 6000 Cycles @80% DOD ( depth of discharge)

•          Battery modules available for parallel and series for higher voltage and capacity

•          BMS Passive cell balance funciton

•          IP66, IP67, water proof, dust proof, Temperature monitoring

•          Customization for Size and Discharge and charge rate

•          Free of Maintenance, contains no poisonous material

•          No leakage, no hazardous chemistry

•          Quick delivery

•          Lighter in weight, smaller in size to save space.

•          Powerfull to increase robust operation for your marine boat or RV

•          Fast charging and high power discharge rate available

•          No need to add water nor worry about maintenance.

•          We offer 5years regular warranty and it can be extended up to 10 years.

With powerful capacity of Lithium Battery production, RJ is able to provide 1 to 1 customization service. No matter you only buy 1 pcs battery for your own use, or you are a company looking for bulk order of LiFePO4 Battery Pack, RJ will always meet your full satisfactions!

1. Quick delivery

Fast delivery is key factor for clients to compete in the market. We attach much importance to quick delivery as much 

as we do in our LiFepo4 lithium battery quality. We will keep our clients updated with tracking number all the time and latest tracking info until the order of LiFePO4 lithium Battery arrives at our clients safely.

2. Top quality

As a LiFePO4 lithium battery Manufacturer for over 16years in China, We have been devoting ourselves into innovative 

R&D of LiFePO4 Lithium Battery, Top quality is what makes RJ distinguished in todays market and what earns RJ a highly reputation in the international market of LiFepo4 Lithium Battery.

3. Customization Available

We can help customize the charge and discharge characteristics of LiFepo4 lithium battery to meet your specific needs, 

 and We can print your company logo on the LifePO4 battery to help advertise your company in the market

4. 7*24 service

Timely and reliable customer service is very important to our clients, which will influence a smooth relationship Therefore, we 

are and will always provide very Professional Pre-sales as well as Whole-hearted after-sales service for 24hours a day, 7days a week

5. Reliable Warranty

We offer 5Years warranty for our regular products, and offer 10years warranty for some of our enhanced products. If any defective LiFepo4 battery occur, we will send you a brand new one free of charge, and you do not need to return the defective one because we understand the international shipping fee is too expensive.RJ believe when we do our service with whole heart, We will earn our customers trust and earn our high reputation back!