What Is a Lithium Battery? A Guide to Home Energy Storage with 7KWH BYD Cell Solutions

What Is a Lithium Battery?

A lithium battery is a type of rechargeable battery that uses lithium ions to transfer energy between the positive and negative electrodes during charging and discharging. Unlike traditional lead-acid batteries, lithium batteries offer higher energy density, lighter weight, longer lifespan, and faster charging speeds. They are widely used in various fields, from consumer electronics to large-scale applications such as electric vehicles and home energy storage systems.

In home energy storage, lithium batteries play a crucial role. They store excess energy generated by solar panels during the day, allowing homeowners to use that energy at night or during power outages. Among the different types of lithium batteries, LiFePO4 (Lithium Iron Phosphate) batteries stand out for home use. They are safer (with a lower risk of overheating or explosion), have a longer cycle life, and perform well in a wide range of temperatures—making them ideal for long-term home energy storage.

Why Choose a 7KWH 15KWH Home Energy Storage Lithium Battery with BYD Cells?

When it comes to home energy storage, the 7KWH lithium battery with BYD Blade cells is a top choice. Here’s why:

1. High Capacity for Daily Home Needs

With a 7KWH 15KWH capacity, this battery can power essential home appliances (such as refrigerators, lights, and small air conditioners) for hours. It’s perfect for average-sized households, storing enough solar energy to reduce reliance on the grid and lower electricity bills. For families with higher energy needs, it also supports stacking—allowing you to expand the capacity up to 120KWH by adding more modules.

2. BYD Blade Cells for Reliability

The battery uses BYD Blade LiFePO4 cells (138Ah and 300Ah Grade A cells). BYD is a global leader in battery technology, and its Blade cells are known for their durability and safety. These cells have a stable chemical structure, reducing the risk of thermal runaway. They also maintain high performance even after repeated charging and discharging.

3. Deep Cycle Life for Long-Term Use

This 7KWH 15KWH lithium battery offers a cycle life of over 6000 times. A “cycle” means charging the battery to full capacity and then discharging it to a certain level. With 6000 cycles, the battery can last for more than 10 years (based on daily use), providing long-term value for homeowners. This deep cycle performance ensures that the battery retains its capacity over time, unlike some other batteries that degrade quickly.

4. Safety and Protection

Equipped with a Smart BMS (Battery Management System), the 7KWH battery automatically monitors and protects the battery. The BMS balances the voltage between cells, prevents overcharging, over-discharging, and short circuits, and ensures the battery operates within a safe temperature range (-20℃-60℃). It also has an IP55 protection class, making it dustproof and water-resistant—suitable for both indoor and outdoor installation (like wall-mounted or stacked setups).

Meet JM Battery: Your Trusted Home Energy Storage Partner

If you’re looking for a high-quality 7KWH home energy storage lithium battery, JM Battery (from Dongguan JM New Energy Technology Co., LTD.) is the brand to choose. Here’s what makes JM Battery stand out:

1. Professional Manufacturer with Years of Experience

JM Battery has been a professional solar lithium battery supplier since 2017. With 8 years of experience, the company has a strong team focused on product development, design, quality control, and customer service. It adheres to international standards, holding certifications such as CE, UN38.3, MSDS, ROHS, ISO, and IEC—ensuring its products meet global safety and quality requirements.

2. Customization Options for Your Needs

JM Battery offers full customization services. Whether you need to add your brand logo (with a minimum order of 30 pieces), adjust the design, or create a sample based on your specific requirements, the company can accommodate. It also supports different system types—off-grid and hybrid grid—to fit various home energy setups.

3. Easy Installation and Use

The 7KWH battery from JM Battery (model: JM-S-51.2V140AH-7KWH；JM-S-51.2V300AH-15KWH) is designed for “plug and play” installation. It has multiple communication ports (RS485, RS232, CAN) that are compatible with most inverter brands (such as SMA, GoodWe, Victron Energy, and Growatt). You can also check the battery’s status (like charge level and temperature) via a mobile app, making it easy to monitor and manage.

4. Reliable After-Sales Support

JM Battery provides a 10-year warranty for its 7KWH home energy storage battery. This warranty covers any defects in materials or workmanship, giving you peace of mind. The company also offers technical support for 10 years, ensuring that you get help whenever you need it. Additionally, JM Battery has a 90.3% positive review rate and a 97.8% on-time delivery rate—showcasing its commitment to customer satisfaction.

5. Global Reach and Competitive Pricing

JM Battery exports its products to major markets including Thailand, the Philippines, and the United States. The 7KWH battery has competitive pricing: the sample price is \(500, and for orders of 100-499 pieces, the price is \)430 per unit. For orders over 500 pieces, the price is negotiable—making it a cost-effective option for both individual homeowners and bulk buyers.

Final Thoughts

Now that you know what a lithium battery is, and why the 7KWH home energy storage battery with BYD cells is an excellent choice, it’s time to take the next step. Whether you want to reduce your carbon footprint, lower electricity bills, or ensure backup power during outages, JM Battery’s 7KWH LiFePO4 battery is a reliable solution. With its high capacity, BYD cells, long cycle life, and professional support, JM Battery is your partner for a more sustainable home energy future.

To learn more about JM Battery’s 7KWH home energy storage battery, visit: https://www.alibaba.com/product-detail/BYD-Blade-Lithium-Battery-7KWH-15KWH_1601165095957.html?spm=a2747.product_manager.0.0.3b4f71d2jINAxT

To learn more about JM Battery’s 15KWH home energy storage battery, visit: