PowerWall A8 Solar Backup

$3,899.00 $3,899.00( / )
A8 PowerWall for Solar Backup Home System     Impress Powerwall A8 adopts a LiFePO4 chemistry battery with safety performance and a long lifetime, which offers you four capacities to meet your requirements.   Non-toxic, environmental protection, abundant raw materials, high specific capacity, stable charge and discharge, good cycling performance, high...
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A8 PowerWall for Solar Backup Home System

    Impress Powerwall A8 adopts a LiFePO4 chemistry battery with safety performance and a long lifetime, which offers you four capacities to meet your requirements.

  Non-toxic, environmental protection, abundant raw materials, high specific capacity, stable charge and discharge, good cycling performance, high thermal stability, safe and reliable, lithium-ion battery material safety, long cycle life, good power characteristics, battery use cost is very sensitive to other batteries.

 The capacity and dimension can customize according to your request. For replacement of the lead-acid battery, the same size as the SLA battery.


Compact Size & Light Weight

High energy density battery, enabled Impress Powerwall ultra-compact, the lightweight.
The compact size makes Impress Powerwall easy to handle.
DC breaker embedded, safer, easier.

High Power Output & Usable Energy Ratio

Impress Energy Storage System has high output power and usable energy ratio, the system can reach 1C continuously and 2C at peak to support critical requirements such as A/C.

They can reach a 95% usable ratio.


Safest Battery & Perfect Compatibility

LiFePO4 chemistry battery has been widely recognized as one of the safest batteries. 

  • LiFePO4 chemistry features stable structures and its thermal runaway temperature is over 480 degrees.
  • That’s 100% higher than other Li-ion chemistry batteries.
  • It’s designed for residential and commercial applications with absolute safety.


LiFePO4 batteries are in use in several applications.

  • ESS – Energy Storage System (ESS) for Frequency regulation, renewable energy integration with solar and wind, micro gird application, telecom application, and backup power.
  • EV – Electrical Vehicles (EV) in the transportation area.
  • HESS – It has been widely applied to distributed, stationary energy storage like Home Energy Storage System (HESS) now.


PowerWall Solar Backup is perfectly working with the leading inverter brand below.

  • Victron
  • Goodwe
  • Sinexcel
  • Imeon
  • Solis
  • Lux Power
  • Sofar
  • GMDE
  • Growatt
  • Voltronic
  • SMA 
  • Deye 
  • More brands will be pronounced soon.


Impress PowerWall Advantage

  • Natural Cooling -- Doesn’t require expensive cooling and ventilation systems

  • Longer Lifetime -- 6000 cycles, 10 years battery lifetime

  • Easy Installation -- Easy to be mounted on the wall or stand on the floor


5kWh Solar Backup System Specifications:


IPS-S5760LFP (A8)


5.76KWh(0.3C @ 25)

Inverter power


Peak output power


Rated DC Input Volt

48V DC

DC input Volt range

42-58V DC

Rated AC input Volt


Peak output current


Output Volt


Output frequency


Environment temperature


Environment humidity


Heat-dissipating method

Natural heat dissipation



Max connections


Series-parallel setup



5 Years(2500 cycles)


10 Years(6000 cycles)

Communication mode

RS485, CAN

Protected mode

Switch,Contactor,Fuse protection

Remote control


Battery dimension


Battery weight


Battery case


Battery protection level


Inverter dimension


Inverter weight


Inverter case

Carbon  steel

Inverter protection level


Energy Storage Solutions (ESS)
 can work with you to plan, design, and install your storage system. Whether that’s as a stand-alone means of storing cheap off-peak energy, as a retrofit into your existing solar set up, or as a complete generation and storage solution.

Battery advantages:

  • Adopt lithium iron phosphate (LiFePO4) material.
  • Meet the IEC, UL, PSE, UN38.3, and other li-ion battery safety standards.
  • Usually, be connected in series or parallel as a battery pack.
  • Internal cell balance, built-in Integrated BMS (Battery Management System).
  • Fast charging-normally recommended 0.5C for 2 hours.



Q. What are the components of a battery energy storage system?

A: It is mainly composed of four parts: Battery System (BS), Power Conversion System (PCS), Battery Management System (BMS), and Monitoring System.

Q. What solar home system?

A: During the day, the power generation system charges the battery; at night, the power generation system inverts and discharges the electricity stored in the battery to supply power to households.


Q. What difference between on-grid and off-grid systems?

A: The on-grid system is dependent on the grid and adopts the working mode of "self-generation and self-consumption, surplus power online" or "fully online". The off-grid system is not dependent on the grid and relies on the working mode of "use while storing" or "use after storing". For households in off-grid areas or areas with frequent power outages, off-grid systems are highly practical.


Because of the Coronavirus and outrageous demand of the Impress order processing can take up to 2-5 business days.

The speed of batteries receive depends on the following factors

  • Whether the lithium ion battery needs to be customized: For personalized products, such as battery size, customized current, smart software battery customization, etc., it may take some time to make before delivery. For the exact delivery time, please contact us at sale@impress-energy.com.
  • The express delivery: Orders typically take 15-20 business days to reach international destinations, but can sometimes take as long as 4-6 weeks for some destinations. It ultimately depends on where you live and what you've ordered... we wish we could give better specifics than that, but due to the complexities of international shipping we cannot. After order, you will receive a tracking email from us. You can go back to our Track My Order and input your tracking number to track the location of your goods at any time.

We have multiple shipping locations worldwide. We locate our primary warehouse in Hong Kong, however, we also have shipping capability originating from the U.S. Thus we ship origination for each order primarily based on a customer's physical address. Our goal is to use the fastest and safest method to deliver our products to our customers.

Expedited International Shipping

We only offer an expedited service option to select international markets due to the complexities and cost of international duties associated with expedited shipping.


All orders will typically be within 2-5 business days from our warehouse and all orders will include tracking from dispatch to delivery. We will ship all ordered in durable packaging to ensure it does not damage your purchase during transit. Impress is not responsible for delays, lost or damaged shipments, or orders sent to incorrect, invalid addresses, or correct addresses. It is always in our best interests to make sure you receive parcel timely manner and Impress will assist as much as possible to trace a missing parcel. Impress is not responsible for or refunds shipping costs in the event of delayed shipping of product availability.

Missing, Lost, or Stolen Package 

If your package is missing or lost, we advised you to contact the shipping courier that's assigned to your shipment. We have no control over the shipment of your package once we hand it to the courier.

If the shipment status says “Delivered” but you didn’t receive the package, you must contact the courier. Sometimes they drop off the package at your local post office or they leave the package to your neighbor if you are not home on the day of delivery. 

Damage or Defect 

As we try our best to provide exceptional service, some factors like shipping and handling are outside of our control, and issues like this can happen.

If your goods are damaged, you can send us a photo and a video showing the damage or defect. You can send it to our customer support team support@impress-energy.com to help you get through the problem you are having. 

If you need further help regarding your order, you can contact us on our email support@impress-energy.com or you can contact us.

    End of 2019, an epidemic--COVID19 sweeping the world disrupted our businesses, After consultation with our co-founders, decided to bring our new business——Looking for more RLB Series Battery Dealers, Offering battery wholesale for our agents.

Why become an IMPRESS Dealer?

Product Innovation 

To remain competitive, battery technology must evolve. Today, the industry demands innovations that offer unparalleled power, performance, and longevity. The IMPRESS LiFePO4 battery does just that and surpasses existing batteries on the market.

Technical Support 

When you become an IMPRESS dealer, know that you have a team of experienced industry experts behind you. Our engineering, applications, and sales teams have been in the industry for over 10 years and have a wealth of combined experience with batteries. Lithium batteries are still understood by many consumers, so we make sure you get the training, engineering, and sales support to meet your business needs.

Quality Assurance

With a focus on quality, we can ensure that you install quality products in your customers' battery-powered vehicles, recreational vehicles, home energy storage, and more. We see our standards, flexibility, and expertise as a competitive advantage.

OEM supply

We have been in the energy business since the beginning of our career as a distributor and understand the importance of branding to some distributors. We understand the need for cash flow, there is no minimum order quantity, we can generally wholesale our existing lithium batteries in packs of 10, greatly reducing the cash flow constraints for our distributors.

Contact Us for Dealer

We've been in the battery business for 12 years and have learned how to build on our success. We will work closely with you to build on your success. Not only do we provide batteries, but we also offer unparalleled service, training, and ongoing support. Our products are batteries, but we are in the business of building relationships and helping you succeed.

If you are interested, please send an email to our Support team: support@impress-energy.com

Custom Built to Your Standards

  Lithium-ion batteries are rechargeable, and lithium ions change from an anode to a cathode when discharged, and from an anode to a cathode when charged. Compared to lead acid batteries, it is lightweight, small, and has a long life.  This core attribute makes it the perfect element for many new design solutions. Lithium-ion batteries are available in unique custom battery pack designs.

  Sometimes finding the ideal battery difficult. Standard batteries may not fit, or more energy or power is required to keep applications running at top capacity.Impress energy battery has the skill and ability to custom design li-ion battery packs to meet your specification. We can also design tested and trusted solutions based on your requirements in a different industry such as UPS, Solar, and Wind application, telecom tower reserve battery, medical equipment, etc Energy storage system; electric bike, scooter, trike, golf trolley, marine, etc transport vehicle, AGVs, Robot, Drone and other motive power batteries.

  Our design team will discuss all the relevant specifications with you. Impress will find the most suitable and cost-effective solution for you.


Lithium Battery Custom solution

Our Process 
  We understand the application’s requirements with you, identify the best solution, design a custom battery solution to specification, and collaborate with you to bring it to life.

Accelerate Time to Market
  Add the Impress team and you’ll add critical capacity, experience, and engineering talent across the entire development cycle. Leverage our expertise to innovate faster, shorten time to revenue growth, and minimize costly delays across planning, design, prototyping, proof-of-concept, and testing.

Improve customer experience
  Each Impress lithium battery is a quality product that we have worked hard to develop over the years. The quality is the same whether our name or your name is on the product. The reliability, resiliency, and performance of Impress that our customers appreciate will also be your qualities that your customers appreciate.

  Impress battery prides itself on its durable battery and stable battery management system, making full use of the manufacture of customized battery packs. Contact us or email us at sale@impress-energy.com and we'll get back to you with an advantageous custom lithium battery solution as soon as possible!