51.2V 300Ah 15kwh Lithium Battery for Home Solar Energy Storage Systems

Parameters for 51.2V 300Ah 15kwh Lithium Battery:

Model	JS-15KWH300AHGSE
Rated Capacity (KWH)	15.36KWH
Configuration	1P16S
Nominal Voltage	51.2V
Nominal Capacity(Cell)	300AH
Battery Type	Lifepo4 3.2V 300AH Grade A Cell
Anode Material	LFP
Working Voltage(V)	42V to 58.4V
Rated Charge/Discharge Current(A)	100A @25±2℃
Max. Charging Current(A)	200A @25±2℃
Max. Discharging Current(A)	200A @25±2℃
Working Temperature(Charge)	0℃ to 40℃
Working Temperature(Discharge)	-20℃ to 40℃
Humidity(%)	5% to 95%
Altitude Range(m)	0 to 3000m
Storage Temperature(in one month)	-10℃ to 35℃
Storage Temperature(in three months)	25±2℃
Storage Humidity	65%±20%RH
Lifecycle	8000 cycles @25℃, 50A charge and discharge current 80%DOD
Residual Capacity Loss	≤3% @25℃ 20%SOC
Communication interfaces	CAN & RS485 & RS232 & WIFI (optional)
Net Weight	123KG
Dimension	350x695x525mm
Warranty	5 years
Leadtime for standard goods	5 to 10 days (fastest in 3 days)
Leadtime for customized goods	3 to 4 weeks for customized orders
Standard packaging	UN Wooden box packing (4D/Y190/S/25 CN/C530178)
After-sales service	Entire lifetime technical support

Features

Flexible OEM & ODM Services

Prefer your own lithium battery brand? No problem. We can customize the 51.2V 300Ah 15kWh lithium battery with your logo, housing color, packaging, language, touchscreen, communication functions, and other details. BMS and battery cell configurations can also be discussed according to your unique requirements. Customized BMS like PACE, JBD, TDT, JK, and the other preferred brands, custom-made battery packs with preferred lithium cells like CATL, EVE, GOTION, CORNEX, HITHIUM, WELION, REPT, GREATPOWER, BYD…etc.

Easy Installation & Capacity Expansion

The battery supports convenient floor-mounted installation and can be installed flexibly according to the available space. If you want to expand the battery storage capacity later, multiple batteries can be connected in parallel, making it easier to expand the home solar energy storage system.

Smart Monitoring & Communication

Keeping track of your battery does not have to be complicated. The system supports CAN, RS485 and RS232 communication, while WiFi can be added as an optional function. This makes it easier to connect compatible inverters and check important battery information remotely.

Long Lifecycle

Nobody wants to replace their solar battery every few years. This 15kWh lithium battery supports over 8000 charge-discharge cycles at 80% DOD under specified test conditions, providing a solid option for long-term home solar energy storage.

Lifetime Support

We provide a 5-year warranty for extra peace of mind. And we are not just here until the battery leaves the factory, we also provide lifetime technical support for installation, communication settings, troubleshooting, and other questions related to the product.

Introduction of 51.2V 300Ah 15kwh Lithium Battery

Product Operation Guide

• Check the battery: Make sure the battery, cables and connectors are in good condition.
• Choose the location: Install it in a dry, safe and suitable environment.
• Connect the cables: Follow the wiring diagram and connect the battery to the compatible inverter.
• Set communication: Select the correct CAN, RS485 or other communication settings.
• Power on: Start the battery and inverter according to the recommended sequence.
• Check the system: Confirm voltage, SOC and communication status before normal operation.

For a better understanding of how to wire the complete solar kit, please watch the video below.

1. Product Introduction

The 51.2V 300Ah lithium battery provides 15.36kWh of energy for home solar storage, backup power, and off-grid systems. Using Grade A LiFePO4 cells and a built-in BMS, it offers stable power, long service life, and easy inverter integration. CAN, RS485 and RS232 interfaces make daily monitoring and system communication much more convenient.

2. Product Advantage

1. Grade A LiFePO4 Cells for Long Lifecycle

This 15kWh lithium battery uses Grade A 3.2V 300Ah LiFePO4 cells, giving you a solid energy storage foundation for everyday electricity requirements. It supports more than 8000 lifecycles at 80% DOD under specified conditions, it is a dependable choice for long-term home solar energy storage systems.

2. Flexible Communication & Inverter Integration

Connecting a battery should not be a headache. This 51.2V solar battery comes with CAN, RS485, and RS232 communication interfaces, and WiFi is also available as an optional function. It can communicate with compatible inverters and energy management systems for easier setup, monitoring, and daily operation.

3. Strong Charging and Discharging Capability

The battery has a rated charge and discharge current of 100A, with maximum charging and discharging current reaching 200A at 25±2°C. With a working voltage range of 42V to 58.4V, it provides stable power output for different home and outdoor appliances.

4. Fast Delivery & Wholelife Technical Support

For standard models, the ordinary lead time is 5 to 10 days, with the fastest delivery around 3 days when stock is available. Customized orders generally take 3 to 4 weeks. The battery comes with UN wooden box packaging, a 5-year warranty, and lifetime technical support.

3. Product Uses

• Home Solar Storage: Store extra solar power during the daytime and use it later when your household electricity demand goes up.
• Villa Backup Power: Provides a larger energy reserve for villas, helping keep essential appliances running during grid interruptions.
• Off-Grid Solar Systems: Works with compatible solar inverters for homes, cabins, and remote locations without reliable grid electricity.
• PV Energy Storage: Stores excess photovoltaic energy instead of sending all generated power directly to the grid.
• Small Business Backup: Suitable for shops, offices and small facilities that need additional electricity during power cuts.
• Home Solar Projects: A practical battery option for installers, distributors, and EPC companies working on residential solar storage projects.

4. Product Pain Points

Installation Can Be Confusing

Not everyone is familiar with battery wiring or inverter settings. We provide an installation and operation manual, plus online technical guidance to help installers get the system running correctly.

Worried About Battery Lifetime?

Using Grade A LiFePO4 cells and a professional BMS, this battery supports over 8000 cycles under specified conditions. A 5-year warranty also gives customers extra peace of mind.

Unsure About Inverter Compatibility?

Different inverters may use different communication protocols. The battery provides CAN, RS485, and RS232, with optional WiFi module, and our technical team can help check compatibility before you place an order.

Need the Battery Quickly?

Waiting weeks for a standard battery can slow down a solar project. Standard models usually have a 5 to 10 days of lead time, with some orders available for shipment in as little as 3 days.

Need Technical Help After Installation?

You don’t have to figure everything out alone. We provide lifetime technical support for installation questions, communication settings, basic troubleshooting, and solar storage system operation.

JSBESS Company Information:

We are looking for agents, distributors, and BESS EPC projects for solar energy, for lithium battery packs, hybrid inverters, and solar energy storage systems. 1MWh 261KWh 161KWh 120KWh 100KWh 96KWh 62KWh 32KWh.

If you are searching for a reliable and high-quality BESS (Battery Energy Storage System) maker in China, Guangzhou JSBESS is your trusted partner. With over a decade of expertise in R&D, production, and global distribution, we provide advanced home, commercial, and industrial energy storage solutions that are safe, efficient, and fully certified to international standards. Our customizable systems support diverse applications from residential solar backup to large-scale grid integration, helping customers achieve energy independence and sustainability.

Guangzhou JSBESS is a leading solar energy storage system supplier in China. We are a trusted provider of advanced renewable energy solutions, integrating product R&D, design, manufacturing, and global sales. With over a decade of experience, we specialize in home energy storage systems (HESS), commercial and industrial energy storage (C&I BESS), and EV charging infrastructure, delivering safe, efficient, and sustainable power solutions to customers worldwide.

At JSBESS, technological innovation is at the core of our competitiveness. Our state-of-the-art, automated, dust-free workshop and internationally recognized testing laboratories allow us to produce more than 500,000 high-quality solar battery storage products annually.

Shipping

FREE shipping on all retail-only orders in Guangdong Province, China.

Please contact customer service for shipping of wholesale and bulk orders

VAT & Customs Duties

Freight charges and taxes vary by country. In some countries, additional freight charges or taxes are required. For example: Switzerland, Norway, Mexico, Brazil, India, etc..

Delivery Countries

Asia Pacific

Malaysia, Philippines, Singapore, Thailand, Vietnam, Myanmar, Cambodia, Laos, Australia, New Zealand, India, Pakistan, Afghanistan,Bangladesh, Nepal, Sri Lanka.

Europe

Austria, Belarus, Belgium, Bulgaria, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, United Kingdom, Ukraine, Russia.

* Please note that some certain regions can not be delivered, please contact customer service for further details.

Middle East

UAE, Egypt, Iran, Iraq, Jordan, Kuwait, Lebanon, Oman, Qatar, Syria, Yemen, Palestine, Turkey, Cyprus.

North America

Canada, United States, Mexico.

* Please note that some certain regions can not be delivered, please contact customer service for further details.

Is your required delivery country not included? Please feel free to contact us or email info@jsbesssolarbatteryenergystorage.com. Please provide the shipping address and zip code to us, so that we can check and confirm the rate and service area.

Mid-Asia

Kazakhstan, Kyrgyzstan, Tajikistan, Uzbekistan, Turkmenistan.

Our Delivery Time Information

Total Delivery Time = Handling Time + Transit Time (+ any holidays and weekends)

Warehouse	Shipping Option
CN	By Sea+Express (Fedex/DHL/UPS, SF Express)

Ship to EU

Warehouse	Shipping Option
CN	By Railway/Sea+Express (DPD/UPS/TNT/DHL/Fedex)

Ship to Asia Pacific/Middle East

Warehouse	Shipping Option
CN	By Sea/Railway+Express (DHL/UPS/Fedex/TNT)

* The above transportation time is only a reference time for regular orders, excluding inspection time or other special times, such as natural accidents, congestion, and other unpredictable factors.

* The tracking detail will be updated after picking up by local express. Please wait patiently or contact us for help.

* Countries that do not listed above, Please contact our customer service for further details.

Shipping Notice

When placing an order, be sure to enter the correct name, address, and contact information so that we can deliver the goods successfully.

If you enter the wrong shipping information, please contact us in a timely manner. We will contact logistics personnel to solve the problem immediately.

If you require to change the address after the order has been shipped, we cannot guarantee that it will be updated properly. In addition, you are responsible for all possible risks and expenses caused by changing the address after the order has been shipped.

JSBESS assumes no responsibility for delayed or rejected orders due to the following reasons:

1. Delay or delivery failure because of the consignee’s actions. These actions include, but are not limited to: changing the address after shipment, entering an unknown address or wrong address, entering incorrect contact information, and refusal to receive, etc.
2. Delay or delivery failure because of the consignee’s actions. These actions include, but are not limited to: changing the address after shipment, entering an unknown address or wrong address, entering incorrect contact information, and refusal to receive, etc.
3. Delay due to force majeure. “Force majeure” means an unforeseen, inevitable, or insurmountable objective situation and other objective conditions that cause delayed shipping, including, but not limited to: national or regional air or ground transportation system controls or interruptions (e.g., weather reasons), communication system interference or malfunction, government actions, postal administration policy changes, wars, earthquakes, typhoons, floods, fires, heavy rain, heavy fog, and other similar events.
4. Aviation contraband, mobile phones, electronic products, fragile products, and other products that are not available for air freight service due to aviation security regulations.
5. Shipments that are confiscated or disposed of due to a violation of transportation regulations.
6. Mail and packages cannot be delivered to the consignee’s address during weekends, national holidays, and festivals.
7. The consignee address is a school, unit, or residential community where the courier has no access.

Order And Logistics Tracking

Notification

After the order is shipped, you will receive a notification containing the waybill number.

Inspection And Sign

As JSBESS products are generally quite valuable, please inspect the package upon delivery. If it’s damaged or deformed, do not sign the delivery or open the package. In such cases, please contact us.

Once you (or someone else on your behalf) signs for the item, JSBESS will consider this your acceptance of the package, quantity, and product. To protect your rights, you are highly recommended to shoot a complete unboxing video and check the items according to the packing list. If items are missing or damaged, please contact us within 24 hours after you receive the package so that we can resolve the problem immediately.

Security

JSBESS values your privacy and will keep all information confidential. We will never sell or use your information for any other purpose than to deliver your order.

If you have any further questions, please contact us.

Email: info@jsbesssolarbatteryenergystorage.com

Phone/WhatsApp: +86 13684961481  | Hours 9 – 4 Pm, Monday~Friday, (GMT+08:00)

Thank you very much for choosing JSBESS. We guarantee that all our products are strictly tested by our quality inspector before delivery. If you have any questions after receiving the products, please contact us by email: info@jsbesssolarbatteryenergystorage.com.

Return Policy

We have a 30-day return policy, which means you’ll have 30 days to request a return after receiving your item. After you email us to apply for a return, we will reply to you in 48 hours.

To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need to provide a receipt or proof of purchase when applying for a return.

Shipping Cost

The shipping cost for returning the products will be borne by JSBESS or the customer by following situations.

When JSBESS Pays For Return Shipping

JSBESS will pay for the cost of return shipping if the reason for the return was the result of OUR error.

Examples of instances may include:

Item arrived defective and cannot be fixed with a replacement part.

We shipped out the wrong item.

We shipped it to the wrong address.

We shipped a duplicate order.

Item malfunctioned during the 30-day returns period. (The customer should install and operate the item properly per the product manual instructions.)

IMPORTANT

For items that arrive damaged or are defective, the customer MUST provide videos or photos to support the claim that the item arrived damaged or is malfunctioning. If a customer refuses to or fails to provide videos or photos of a claimed malfunctioning/damaged item, this return will be treated as “buyer’s remorse”, and the customer is solely responsible for shipping it back.

If a customer claims an item is defective/damaged, the customer must provide proof prior to return, with no exceptions.

If the return request for a damaged/defective item can be fixed with simple parts and support, we can provide the option of free replacement part(s) and advice on how to repair your item if the customer finds that to be the easier solution so you don’t have to ship a large bulky item back.

Once we have received the approved returned item, we will review its condition. If the item is found to be defective, we will issue a refund within 7 workdays.

When the Customer Pays For Return Shipping

In the case of a return due to customer error, return shipping is the customer’s responsibility and shipping charges are paid by the customer. Fees vary by region.

JSBESS will provide the pre-paid return shipping labels to the customer and the shipping cost for returning the products will be deducted from the refund.

It is important to note that any order offered with special shipping charges is subject to a deduction of our actual outbound shipping costs.

After the 30-day returns period, customers may use the JSBESS Warranty Policy for repairs if the item is faulty or malfunctioning. Please refer to the JSBESS Warranty Policy for details.

Return Address

Please contact JSBESS customer service by email (info@jsbesssolarbatteryenergystorage.com) to obtain the return address.

Refund Policy

The customer can return or refund a product for up to 30 days from the date received it. Please keep the receipt or proof of purchase.

We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, the customer will be automatically refunded on the original payment method within 3 workdays. Please remember it can take some time for the payment bank or credit card company to process and post the refund too.

Returns may be requested for a refund if one of the following conditions is met:

Within 30 days of receiving the goods, the customer finds that the product has been damaged during transportation and can provide a certificate of damage;

Within 30 days of receiving the goods, the customer finds that the product is seriously inconsistent with the description of the original product in one or more important aspects;

Within 30 days after the customer receives the goods, it is found that the product has a performance failure that is not artificially damaged.The customer should assist us in completing all the battery testing, and both parties confirm that the product does have quality problems.

Cancellation of order

JSBESS generally sends out your orders within 5-12 business days. To cancel an order, please contact JSBESS as soon as possible to cancel the order and the customer will get a refund within 24 hours if the products have not been sent out.

But if the product for the order has been shipped, we will refund the payment within 7 workdays after the shipped product is returned.

To cancel your order, please contact us via info@jsbesssolarbatteryenergystorage.com.

More Information

For more information about our privacy practices, if you have questions, or if you would like to make a complaint, please contact us at info@jsbesssolarbatteryenergystorage.com.

Warning:

1. During the use of lithium battery products, please follow the “Product User Manual” and “Product Specifications” and do not use in violation of relevant regulations

2. Lithium batteries should be properly placed in a dry and cool place. Do not use supplementary electricity for more than 3 months to ensure the life of lithium batteries. During use, pay attention to waterproofing, moisture, anti-static, and keep the battery away from heat sources, etc.

3. Do not throw lithium batteries into a fire or heat. Do not throw lithium batteries into water or get them wet.

4. It is forbidden to short-circuit the positive and negative poles of lithium batteries or short-circuit them through metal.

5. It is forbidden to place or transport lithium batteries with other metal objects. It is forbidden to hit or squeeze lithium batteries with heavy objects. It is forbidden to pierce lithium batteries with nails or sharp objects.

6. It is forbidden to charge lithium batteries with unofficial lithium battery chargers.