Description

Product Feature:

  • Flexible Installation
    Supports both movable and wall-mounted installation methods, suitable for various residential/commercial scenarios.
  • Sleek Design
    Features a light bar appearance, which facilitates easy power level checking.
  • Customization Services
    Offers touchscreen logo and multi-language system customization (OEM/ODM mode with low minimum order quantity (MOQ)).
  • Intelligent Monitoring
    Equipped with built-in WiFi, Bluetooth, and a BMS (Battery Management System) for real-time monitoring of State of Charge (SOC) and operating status.
  • Ultra-Long Lifespan
    Boasts 8000 deep charge-discharge cycles, with about 10 years of normal service life.
  • Capacity Options
    Available in two specifications: 15kWh (51.2V 300Ah) and 16kWh (51.2V 314Ah), to meet diverse power consumption needs.
  • Warranty Guarantee
    Comes with a 10-year official warranty, including free repair/replacement for faults, ensuring worry-free use

Product Parameters:

Model
JM-51.2V 300Ah-LED
Warranty
10 years
Anode Material
LFP
Chargeable
Yes
Application
Solar energy storage battery,Home backup power supply,Emergency power supply
  Cycle Number  8000 Cycles
Brand Name
JM or Customzied
Certification
MSDS, UN38.3,CE, ROHS
Product Dimension
520*287*700mm
Coummunication Protocol
CAN2.0/RS485(customized available)
LCD
(customized available)
OEM/ODM
(customized available)

Product Picture:

Solar and Battery Systems
15kWh Home Solar Battery

15kwh lithium battery size:

15kwh lithium battery size
15kWh Home Battery

Lifepo4 Battery 48V Solar Battery
JM 15 kwh Lithium Battery

Battery Factory

Company Profile:

Jm Battery
JmBattery
JMBatteries
JMBatt
BatteryJM

Common Product Issues:

What can a 15kWh lithium battery power in a typical home?

A 15kWh lithium battery provides substantial backup power for both grid-tied and off-grid homes. On average, a 15kWh capacity can power essential household appliances—such as a refrigerator, Wi-Fi router, lights, TV, and laptops—for a full 24 hours during a blackout. If you are running high-draw appliances like air conditioners or well pumps, it serves as an excellent overnight energy bridge until your solar panels begin recharging the system the next morning.

Is this 51.2V 300Ah battery compatible with my current solar inverter?

Yes! Our 51.2V 300Ah battery is designed for maximum compatibility. The built-in communication ports interface seamlessly with most leading Tier-1 inverter brands on the market, including Victron, Growatt, Deye, Luxpower, and Voltronic. This makes it a perfect plug-and-play solution for upgrading your existing home energy storage system.

How does the built-in "Smart BMS" protect the battery?

The Smart BMS (Battery Management System) acts as the brain of the battery. It constantly monitors cell voltage, current, and temperature in real-time. If it detects anomalies like overcharging, deep discharging, short circuits, or extreme temperature fluctuations, the Smart BMS will automatically adjust or disconnect the system to prevent damage. This ensures maximum safety for your home and significantly extends the lifespan of your LiFePO4 battery.

How long will the JM 15kWh LiFePO4 battery last?

Built with premium Lithium Iron Phosphate (LiFePO4) cells, this battery boasts an impressive cycle life of over 6,000 cycles at 80% Depth of Discharge (DoD). For the average user cycling the battery once a day, this translates to a lifespan of 10 to 15 years. Compared to traditional lead-acid batteries, the JM 15kWh battery price offers a far superior long-term return on investment (ROI) due to its zero-maintenance design and decade-long reliability.

Can I connect multiple 51.2V 300Ah batteries in parallel to increase my storage?

 Absolutely. If your energy needs grow, your storage can too. You can safely connect up to 15 units of these 51.2V 300Ah batteries in parallel. This allows you to scale your system from a standard 15kWh setup up to a massive 225kWh commercial-grade power bank, making it ideal for large off-grid properties, agricultural setups, or small businesses.

How does this solar battery perform in extreme regional climates?

 The JM 15kWh battery is engineered for global resilience. Whether you are building an off-grid cabin in the extreme summer heat of Australia or the US Sunbelt (Texas, California, Florida), or need reliable winter backup power in colder regions like Northern Europe, the UK, or Canada, the Smart BMS features thermal regulation limits to ensure safe operation. It operates efficiently in discharging temperatures ranging from -4°F to 140°F (-20°C to 60°C). Note: For optimal charging in sub-zero climates, we recommend indoor or insulated installation.

Is this battery suitable for RVs, camper vans, or marine use?

While primarily designed for residential solar battery backup, the robust, vibration-resistant casing and high energy density make this 51.2V system an excellent choice for large motorhomes, luxury RVs, and marine vessels that require a 48V/51.2V architecture.

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Shipping & Delivery

Shipping

FREE shipping on all orders retail only

Big Whosale goods needs to contact customer service

VAT & Customs Duties

All of the prices in our store include all cost, such as DDP shipping,

VAT/Tax, Customs duties... You don't need to pay any other fees.

Delivery Countries

Asia Pacific

Japan, Korea, Malaysia, Philippines, Singapore, Thailand, Australia, New Zealand

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

* Please note that certain regions in the UK – like the Isle of Jersey – can not be delivered at the moment.

* Please note that certain regions Spain – like the Canary Islands, hueda and Melilla – can not be delivered at the moment.

* Please note that certain regions Spain – like the Azores and Madeira – can not be delivered at the moment.

Middle East

UAE

North America

Canada, United States, Mexico

* Please note that certain regions in the USA – like the Isle of Alaska, Hawaii, Puerto Rico and Guam – can not be delivered at the moment. Our delivery methods only allow us to reach the Contiguous USA.

Is your required delivery country not included? Please feel free to contact us or email sales01@jmbatteries.com Please provide the shipping address and zip code to us, so that we can check the rate and service area to confirm if shipment is possible.

Our Delivery Time Information At A Glance

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

Warehouse

Shipping Option

Handling Time

Estimated Delivery Time

US/CA

Fedex/DHL/UPS(Tax Free)

1~3 working days

3~7 working days

CN

By Sea+Express (Fedex/DHL/UPS, Tax Free)

3~7 working days

30 ~45 working days

Ship to USA/North America

Ship to EU

Warehouse

Shipping Option

Handling Time

Estimated Delivery Time

DE/POL

DHL/GLS/DPD/UPS/TNT(Tax Free)

1~3 working days

3~7 working days

CN

By Railway/Sea+Express (DPD/UPS/TNT, Tax Free)

3~7 working days

45 ~60 working days

 

Ship to Asia Pacific/Middle East

Warehouse

Shipping Option

Handling Time

Estimated Delivery Time

CN

By Sea/Railway+Express (DHL/GLS/DPD/Toll/UPS/Fedex/TNT, Tax Free)

3~7 working days

45~60 working days

* The above transportation time is only the reference time of most orders, excluding inspection time or other special times, such as natural accidents, congestion, and other uncontrollable factors.

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

* Countries that do not appear in the table, Please Click Here to consult us for freight charges.

Shipping Notice

When you place an order, be sure to enter the correct name, address, and contact information so that we can deliver your items successfully.

If you enter the wrong address, please contact us in a timely manner. We will contact logistics personnel to solve the problem. JMBatteries orders can only be shipped to the country where the order is placed.

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

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

  1. Shipping time might be delayed for 1-2 days for transportation to remote regions.
  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 email or SMS containing the waybill number (you need to confirm SMS notifications when placing the order).

Tracking Your Order

Please track your order on our Track order page or log in to the express company’s official website to check your package shipment status.

Inspection And Sign

As JMBatteries 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, JMBatteries 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

JMBatteries 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: sales01@JMBatteries.com

Phone/WhatsApp: +86 159 9974 9684  | Hours 9 – 6 Pm, Monday~Friday, (GMT+08:00)

Return & Refund Policy

Thank you very much for choosing JMBatteries. We guarantee that all JMBatteries products are strictly tested by our quality inspector before delivery. If you have any questions after receiving the products, please contact us by email: sales01@JMBatteries.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 24 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 JMBatteries or the customer by following situations.

When JMBatteries Pays For Return Shipping

JMBatteries Time 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 instruction.)

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 a 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 3 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.

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

Return Address

As we have warehouses in different places to receive the return products, please contact JMBatteries customer service by email (sales01@JMBatteries.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

JMBatteries generally sends out your orders within 1-2 business days. To cancel an order, please contact JMBatteries as soon as possible to cancel the order and the customer will get a refund within 12 hours if the products are not sent out.

But if the product for the order has been shipped, we will refund the payment within 3 workdays after the shipped product is returned.

To cancel your order, please contact us via sales01@JMBatteries.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 sales01@JMBatteries.com.