Home Battery Storage System
Dongguan Huawen New Power Co., Ltd. develops home battery storage system with the latest technologies while keeping the long-lasting quality top of mind. We only work with suppliers who work to our quality standards – including social and environmental standards. Compliance with these standards is monitored throughout the production process. Before a supplier is finally selected, we require them to provide us with product samples. A supplier contract is only signed once all our requirements are met.
The brand Huawen represents our capability and image. All its products are tested by the market for times and are proven to be excellent in quality. They are well received in different countries and regions and are re-purchased in large quantities. We are proud that they are always mentioned in the industry and are examples for our peers who together with us will promote business development and upgrade.
With a compact design, it adapts to various living spaces while maintaining high performance and reliability. By seamlessly integrating advanced technology, it empowers households to optimize energy consumption and reduce reliance on grid power. This system effectively stores excess solar energy for later use, revolutionizing residential energy management.
How to choose home battery storage system?
The home battery storage system is an innovative solution for storing renewable energy, offering flexibility and efficiency. It empowers homeowners to manage energy consumption, reduce reliance on the grid, and ensure uninterrupted power supply during outages.
- 1. Why choose: Store excess solar energy for nighttime or cloudy days, maximizing renewable energy use.
- 2. Applicable scenario: Ensure uninterrupted power during grid outages for essential appliances.
- 3. Why choose: Reduce electricity bills by utilizing stored energy during peak tariff hours.
- 4. Selection method: Choose capacity and type (e.g., lithium-ion) based on household energy needs and solar panel compatibility.
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Most batteries can be recycled. However, some batteries are easier to recycle than others. For example, lead-acid batteries (nearly 90% are recycled) and button batteries (because they are highly toxic). There are also other types of batteries, such as alkaline batteries and rechargeable batteries, including nickel-cadmium batteries (Ni-Cd)\nickel-metal hydride batteries (Ni-MH), lithium-ion batteries (Li-ion) and nickel-zinc batteries (Ni-Zn) that can be recycled.
Lead-acid batteries: Lead-acid batteries are mainly used in various automotive roads and are also used in uninterruptible power systems. The recycling method is to first squeeze them vigorously, then neutralize the acid, and then recover the polymer from the lead.
The recycled products have a variety of uses, including making new batteries. It is also possible to recover the highly toxic metal lead from the lead-acid batteries to prevent it from contaminating water sources.
Many cities have lead-acid battery recycling services. For example, in most states in the United States and most provinces in Canada, there are many people who take batteries to waste battery recycling stations to make money from them, and many sell them, and many places that sell batteries have battery recycling services (some are required by local governments or laws).
In the United States, the recycling rate of used lead-acid batteries has reached 97%. However, China has no corresponding policies to encourage people to recycle lead-acid batteries.
Silver ion batteries: This type of battery is mainly used in watches, toys and medical instruments. It contains a small amount of mercury. Recycling silver ion batteries can remove highly toxic mercury and avoid polluting the environment.
How to deal with used lithium batteries?
There are two main recycling methods for waste lithium batteries: pyrolysis and wet recycling. Pyrolysis mainly involves disassembly and high-temperature treatment, while wet recycling mainly involves chemical treatment, metal extraction, and conversion into oxides. "The former of these two methods is energy-intensive and highly polluting, while the latter is more polluting and has a longer process overall."
Lead-acid batteries: Lead-acid batteries are mainly used in various automotive roads and are also used in uninterruptible power systems. The recycling method is to first squeeze them vigorously, then neutralize the acid, and then recover the polymer from the lead.
The recycled products have a variety of uses, including making new batteries. It is also possible to recover the highly toxic metal lead from the lead-acid batteries to prevent it from contaminating water sources.
Many cities have lead-acid battery recycling services. For example, in most states in the United States and most provinces in Canada, there are many people who take batteries to waste battery recycling stations to make money from them, and many sell them, and many places that sell batteries have battery recycling services (some are required by local governments or laws).
In the United States, the recycling rate of used lead-acid batteries has reached 97%. However, China has no corresponding policies to encourage people to recycle lead-acid batteries.
Silver ion batteries: This type of battery is mainly used in watches, toys and medical instruments. It contains a small amount of mercury. Recycling silver ion batteries can remove highly toxic mercury and avoid polluting the environment.
How to deal with used lithium batteries?
There are two main recycling methods for waste lithium batteries: pyrolysis and wet recycling. Pyrolysis mainly involves disassembly and high-temperature treatment, while wet recycling mainly involves chemical treatment, metal extraction, and conversion into oxides. "The former of these two methods is energy-intensive and highly polluting, while the latter is more polluting and has a longer process overall."
Advantages of cylindrical lithium batteries:
With the continuous improvement of market demand and people's living standards, electronic products have become an indispensable part of people's daily lives. Whether it is mobile phones, laptops or game consoles, electronic products need to use batteries as power sources. Cylindrical lithium batteries have become the first choice for power sources of many electronic products due to their good performance. The following will introduce them from several aspects.
1. High safety performance
Compared with other types of batteries, cylindrical lithium batteries have obvious advantages in safety. It uses high-quality battery materials, has high thermal stability and anti-puncture resistance, and can effectively avoid excessive heating during charging and discharging, thereby avoiding fire accidents caused by overheating of the battery. In addition, during the charging and discharging process, the cylindrical lithium battery is also equipped with an overcharge and over-discharge protection circuit, which effectively avoids the situation of overcharge and over-discharge damage to the battery.
In addition, due to the relatively small size of cylindrical lithium batteries and the simple manufacturing process, each link can be controlled more finely during the production process, thereby greatly improving the quality and safety performance of the battery.
2. High energy density
Cylindrical lithium batteries perform very well in terms of energy density, with the energy density of each unit reaching more than 200Wh/kg. Compared with some other types of batteries, cylindrical lithium batteries have higher energy storage density, which means that with the same volume, they can store more electricity for a longer time, and at the same time provide stronger power support for electronic products.
3. Long life
Cylindrical lithium batteries are made of high-quality materials, and the chemical reactions produced during charging and discharging are relatively stable, and it is not easy to decay the power. Therefore, cylindrical lithium batteries have a long service life, which means that under normal use, it is almost unnecessary to replace the battery. In addition, cylindrical lithium batteries can also be deeply charged and discharged during use, avoiding damage caused by frequent charging and discharging of the battery.
4. Easy to carry
Cylindrical lithium batteries are small in size and light in weight, making them easy for users to carry and use. Whether you are in outdoor activities, traveling or going out to do business, you can carry cylindrical lithium batteries with you to provide timely power support for electronic devices.
5. Low cost
The structural design of cylindrical lithium batteries is relatively simple, and the manufacturing process is also relatively sophisticated, so the price in the market is relatively affordable. For consumers, the purchase cost is low and very practical.
6. Repeatable charge and discharge
Cylindrical lithium batteries use advanced battery cell technology. Each battery has a BMS (battery management system) and a protection board, so under normal use, it can be repeatedly charged and discharged. Especially for high-quality cylindrical lithium batteries, the replacement cycle can be longer, and users can reuse them more easily. Compared with non-rechargeable batteries, this has a more positive significance for reducing the environmental burden and also saves users a lot of economic costs.
The difference between cylindrical lithium batteries and other lithium batteries:
With the rapid development of modern technology, electronic devices are everywhere, and batteries have become one of the necessary accessories. Among the various forms of batteries, different types of batteries have different advantages and disadvantages. Next, we will focus on the characteristics of cylindrical lithium batteries and their similarities and differences with other batteries, as well as how they work in our electronic devices.
1. Appearance and capacity
Cylindrical lithium batteries are cylindrical in shape, with larger capacity than other types of batteries and faster charging time. Compared with square batteries and flat batteries, cylindrical lithium batteries are more suitable for more electronic products, and have higher power and capacity, which can increase the use time of electronic devices.
However, cylindrical lithium batteries are not suitable for all devices. Due to their large battery capacity, they are correspondingly heavier. In small devices, such as smart watches or alarm clocks, cylindrical lithium batteries that are too large may not be able to adapt. In some tablets or laptops, cylindrical lithium batteries can be used for extended use time.
2. Safety
Cylindrical lithium batteries have a relatively high safety index, so they are very popular in the market. The most notable feature of cylindrical lithium batteries is an aluminum shell or steel shell. The metal packaging prevents contamination and leakage and protects everything from the device to the user. In addition, the shell of cylindrical lithium batteries can also resist wear and tear, making the battery more durable and easy to carry.
However, just like other electronic products, cylindrical lithium batteries also have the risk of fire. Short circuits, over-discharge, overcharging, etc. can all lead to battery hazards. In addition, if used improperly, cylindrical lithium batteries may heat up and explode, so you must be vigilant during normal use.
3. Cost and ease of use
Cost is an issue that needs to be considered for each battery type. Cylindrical lithium batteries are relatively expensive to produce, as they require a durable metal outer skin and several small internal cells, which requires a high level of technology. Although the production cost may be higher than other battery types, cylindrical lithium batteries may be a more affordable option for a period of time due to their long service life.
For end users, cylindrical lithium batteries are also easier to use. People can use rechargeable cylindrical lithium batteries at any time, without having to record the date of full charge or discharge. In the vast majority of cases, cylindrical lithium batteries are used in various electronic devices and manufacturers without complex adjustments.
4. Environmental impact
In the context of today's growing environmental awareness, the environmental impact of cylindrical lithium batteries is also an issue that needs to be considered. The chemicals and metals in cylindrical lithium batteries can have an impact on the earth and our health. After use, discarded battery waste needs to be properly disposed of to avoid unnecessary pollution.
In addition, during the chip manufacturing process, due to the size and composition of the cylindrical lithium battery, it may also have some chemical diffusion leading to more waste liquid discharge problems.
5. Charging speed
The last key is the different charging speed. Cylindrical lithium batteries can be charged in a relatively short time, and conventional chargers can even complete charging in a few hours. In addition, using the latest charging technology, such as fast charging or wireless charging, can also further optimize the charging speed. Compared with other batteries, square batteries and flat batteries take much longer to charge and require the use of higher quality charging equipment.
With the continuous improvement of market demand and people's living standards, electronic products have become an indispensable part of people's daily lives. Whether it is mobile phones, laptops or game consoles, electronic products need to use batteries as power sources. Cylindrical lithium batteries have become the first choice for power sources of many electronic products due to their good performance. The following will introduce them from several aspects.
1. High safety performance
Compared with other types of batteries, cylindrical lithium batteries have obvious advantages in safety. It uses high-quality battery materials, has high thermal stability and anti-puncture resistance, and can effectively avoid excessive heating during charging and discharging, thereby avoiding fire accidents caused by overheating of the battery. In addition, during the charging and discharging process, the cylindrical lithium battery is also equipped with an overcharge and over-discharge protection circuit, which effectively avoids the situation of overcharge and over-discharge damage to the battery.
In addition, due to the relatively small size of cylindrical lithium batteries and the simple manufacturing process, each link can be controlled more finely during the production process, thereby greatly improving the quality and safety performance of the battery.
2. High energy density
Cylindrical lithium batteries perform very well in terms of energy density, with the energy density of each unit reaching more than 200Wh/kg. Compared with some other types of batteries, cylindrical lithium batteries have higher energy storage density, which means that with the same volume, they can store more electricity for a longer time, and at the same time provide stronger power support for electronic products.
3. Long life
Cylindrical lithium batteries are made of high-quality materials, and the chemical reactions produced during charging and discharging are relatively stable, and it is not easy to decay the power. Therefore, cylindrical lithium batteries have a long service life, which means that under normal use, it is almost unnecessary to replace the battery. In addition, cylindrical lithium batteries can also be deeply charged and discharged during use, avoiding damage caused by frequent charging and discharging of the battery.
4. Easy to carry
Cylindrical lithium batteries are small in size and light in weight, making them easy for users to carry and use. Whether you are in outdoor activities, traveling or going out to do business, you can carry cylindrical lithium batteries with you to provide timely power support for electronic devices.
5. Low cost
The structural design of cylindrical lithium batteries is relatively simple, and the manufacturing process is also relatively sophisticated, so the price in the market is relatively affordable. For consumers, the purchase cost is low and very practical.
6. Repeatable charge and discharge
Cylindrical lithium batteries use advanced battery cell technology. Each battery has a BMS (battery management system) and a protection board, so under normal use, it can be repeatedly charged and discharged. Especially for high-quality cylindrical lithium batteries, the replacement cycle can be longer, and users can reuse them more easily. Compared with non-rechargeable batteries, this has a more positive significance for reducing the environmental burden and also saves users a lot of economic costs.
The difference between cylindrical lithium batteries and other lithium batteries:
With the rapid development of modern technology, electronic devices are everywhere, and batteries have become one of the necessary accessories. Among the various forms of batteries, different types of batteries have different advantages and disadvantages. Next, we will focus on the characteristics of cylindrical lithium batteries and their similarities and differences with other batteries, as well as how they work in our electronic devices.
1. Appearance and capacity
Cylindrical lithium batteries are cylindrical in shape, with larger capacity than other types of batteries and faster charging time. Compared with square batteries and flat batteries, cylindrical lithium batteries are more suitable for more electronic products, and have higher power and capacity, which can increase the use time of electronic devices.
However, cylindrical lithium batteries are not suitable for all devices. Due to their large battery capacity, they are correspondingly heavier. In small devices, such as smart watches or alarm clocks, cylindrical lithium batteries that are too large may not be able to adapt. In some tablets or laptops, cylindrical lithium batteries can be used for extended use time.
2. Safety
Cylindrical lithium batteries have a relatively high safety index, so they are very popular in the market. The most notable feature of cylindrical lithium batteries is an aluminum shell or steel shell. The metal packaging prevents contamination and leakage and protects everything from the device to the user. In addition, the shell of cylindrical lithium batteries can also resist wear and tear, making the battery more durable and easy to carry.
However, just like other electronic products, cylindrical lithium batteries also have the risk of fire. Short circuits, over-discharge, overcharging, etc. can all lead to battery hazards. In addition, if used improperly, cylindrical lithium batteries may heat up and explode, so you must be vigilant during normal use.
3. Cost and ease of use
Cost is an issue that needs to be considered for each battery type. Cylindrical lithium batteries are relatively expensive to produce, as they require a durable metal outer skin and several small internal cells, which requires a high level of technology. Although the production cost may be higher than other battery types, cylindrical lithium batteries may be a more affordable option for a period of time due to their long service life.
For end users, cylindrical lithium batteries are also easier to use. People can use rechargeable cylindrical lithium batteries at any time, without having to record the date of full charge or discharge. In the vast majority of cases, cylindrical lithium batteries are used in various electronic devices and manufacturers without complex adjustments.
4. Environmental impact
In the context of today's growing environmental awareness, the environmental impact of cylindrical lithium batteries is also an issue that needs to be considered. The chemicals and metals in cylindrical lithium batteries can have an impact on the earth and our health. After use, discarded battery waste needs to be properly disposed of to avoid unnecessary pollution.
In addition, during the chip manufacturing process, due to the size and composition of the cylindrical lithium battery, it may also have some chemical diffusion leading to more waste liquid discharge problems.
5. Charging speed
The last key is the different charging speed. Cylindrical lithium batteries can be charged in a relatively short time, and conventional chargers can even complete charging in a few hours. In addition, using the latest charging technology, such as fast charging or wireless charging, can also further optimize the charging speed. Compared with other batteries, square batteries and flat batteries take much longer to charge and require the use of higher quality charging equipment.
How to Choose the Right Cylindrical Cell Type for Your Application
Cylindrical lithium cells such as 18650, 21700, and 32700 are widely used in battery packs across industries including power tools, energy storage, medical devices, and electric vehicles. Selecting the right cell type is essential to achieving optimal safety, runtime, performance, and overall system cost.
Why Cell Format Matters
Determines energy capacity and runtime
Influences discharge capability and power output
Affects thermal management and safety
Impacts pack size, weight, and assembly cost
Common Cylindrical Cell Sizes and Their Characteristics
Cell Type
Typical Capacity (mAh)
Max Continuous Discharge
Typical Applications
18650
2000–3500 mAh
10A–30A
Laptops, flashlights, e-bikes, UPS backup
21700
4000–5500 mAh
15A–45A
Power tools, e-motorcycles, energy storage
32700
6000–9000 mAh
50A+
Solar ESS systems, RV batteries, industrial equipment
Key Factors to Consider When Selecting Cylindrical Cells
1. Energy Density vs. Power Output
If you need long runtime, choose high-capacity cells. If you need high current, choose high-drain performance cells.
2. Battery Chemistry
NMC / NCA: higher energy density, suitable for compact high-performance devices
LFP (LiFePO₄): safer, longer cycle life, ideal for energy storage and industrial systems
3. Discharge Rate Requirements
Power tools and EV applications require high continuous current — check manufacturer spec sheets for real current ratings.
4. Temperature Performance
Consider operating conditions such as outdoor, automotive, or extreme environments.
5. Mechanical Layout and Pack Size
21700 & 32700 cells reduce the number of cells required, lowering assembly complexity and BMS cost.
Recommended Cylindrical Cell Selection by Application
Application Type
Suggested Cell
Reason
Power Tools / High-Peak Current
21700 High-Discharge or 32700 LFP
Strong power output and thermal stability
Portable Electronics
18650 NMC
Compact size, lightweight, cost-effective
Solar ESS / Backup Storage
32700 LiFePO₄
Long cycle life and highest safety
Electric Motorcycles / Mobility
21700 NMC
High energy density with good discharge performance
Conclusion
Choosing the right cylindrical cell type depends on balancing size, energy capacity, discharge requirements, safety, and cost. Evaluating your application goals and working with an experienced battery manufacturer ensures reliable and well-optimized performance.
Huawen New Power provides customized lithium battery packs using 18650, 21700, and 32700 cylindrical cells and supports cell matching, BMS design, and OEM/ODM production.
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Dongguan Huawen New Power Co., Ltd.
Dongguan Huawen New Power Co., Ltd. is a professional lithium batteries manufacturer integrating R&D, production and sales. The company was established in 2018 and is located in Dongguan City, GUA.
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Contact person: Olina Chang
WhatsApp：0086-15992786791
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Songhu Yungu Dalang Innovation Industrial Park, No. 388, Yangxin Road, Yangchong Village, Dalang Town, Dongguan City, GUA , China