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Solar System Batteries Manufacturer & Supplier In China
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One Stop Solar System Batteries Factory For 10 Years
KET is a leading manufacturer of solar system batteries in China. And we support customization service, including size, voltage, capacity customization.
KET's battery products are widely used in a variety of fields, including
energy storage systems, power tools,
e-bikes,
golf carts,
forklifts, vacuum cleaners, household appliances, low-speed vehicles, medical products, military equipment, communication equipment, and more.
With a team of experienced engineers, KET can provide customized solutions to meet your specific needs.
Most KET's standard products have received certifications such as CE, FCC, UN38.3, and MSDS. If necessary, KET can also you in obtaining certifications for your customized solar system batteries.
Strict Quality Control For Your Solar System Batteries
At KET, we are confident in the superior quality and reliability of your custom solar system batteries, and are committed to ensuring their safety for our customers.
Through our rigorous testing process, including inspections of raw materials and semi-finished products, and aging tests, we guarantee the highest level of quality control. We maintain detailed records of every stage of production to quickly address any potential issues.
Our adherence to the ISO 9001 standard has enhanced our production efficiency and ability to control the quality of our products, and our thorough production records for each key process help us maintain complete control over every aspect of production.
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Your Best Solar System Batteries For Sale
Solar system batteries, also known as Solar Battery Storage Systems, are batteries used to store excess energy generated by a solar panel system for later use. The stored energy can be used to power the home or building when the solar panels are not generating enough energy, such as at night or during cloudy weather. The batteries used in solar battery storage systems can be of various types, including
lithium-ion, lead-acid, or sodium-sulfur, among others. The choice of battery type will depend on factors such as the capacity required, the size of the solar panel system, and the desired lifespan of the battery. A solar battery storage system typically includes a control system that manages the flow of energy into and out of the batteries, an inverter to convert the direct current (DC) stored in the batteries to alternating current (AC), and monitoring and safety systems to ensure safe and efficient operation.
- Production Line
- Production & Test Equipment
- Certification
Battery Detector
Automatic Wire Stripping Machine
Vibration Testing Machine
Salt spray test cabinet
Rechargeable battery performance testing equipment
Lithium battery automatic testing equipment
Discretionary cabinets
Battery charge and discharge test system
Integrated Tester
Automatic spot welding machine
UN38.3
MSDS
ISO 9001 2015
invention of Lithium battery testing equipment
CE
How To Custom Your Best Batteries For Solar Systems?

Note: Due to different custom requirements there will be different MOQ requirements, while the cost of raw materials for batteries has fluctuated a lot recently. So please contact us in time and get the latest solar systems batteries quotes.
Types Of Batteries Used For Solar System And How To Choose?
There are several types of batteries that can be used in solar systems, including:
1.Lead-acid batteries: These are the most common type of battery used in solar systems and are widely available and affordable. They are reliable and durable, but require regular maintenance, including adding distilled water to the cells, and can be heavy and bulky.
2.
Lithium-ion batteries:
Lithium-ion batteries are lighter and more compact than lead-acid batteries, and have a longer lifespan. They are also more efficient, but are more expensive and require specialized charging systems.
3.Nickel-cadmium batteries: Nickel-cadmium batteries are durable and efficient, and can handle deep cycles of discharge and recharge. They are also widely available and affordable, but are becoming less popular due to their toxic cadmium content and the availability of more environmentally friendly battery options.
4.Sodium-sulfur batteries: These are high-capacity, high-voltage batteries that are often used in large-scale solar systems. They are efficient, but expensive and require specialized charging systems, and are not widely available.
5.Flow batteries: Flow batteries are a newer technology that are well-suited for large-scale energy storage. They are efficient, scalable, and long-lasting, but are also expensive and require specialized charging systems.
6.
Lithium Iron Phosphate (
LiFePO4) batteries: LiFePO4 batteries are a type of
lithium-ion battery that have a longer lifespan and are more resistant to thermal runaway compared to other lithium-ion batteries. They are also more environmentally friendly, and can handle deep cycles of discharge and recharge. However, they can be more expensive than other types of batteries.
Based on the advantages and disadvantages of each type of battery, it can be concluded that
lithium-ion batteries and
LiFePO4 batteries are currently the best choices for solar system batteries. They offer a combination of efficiency, durability, and cost-effectiveness, making them well-suited for use in a variety of solar energy storage applications.
How To Maintain Your Solar System Batteries (Lithium-Ion Or LiFePo4)?
Here are some steps to maintain your solar system batteries (lithium-ion or LiFePo4):
Charge the batteries regularly: Charge the batteries when they drop below a certain voltage level, usually around 50% to 60% of their full capacity.
Store batteries properly: If the batteries are not in use, store them in a cool, dry place. Avoid extreme temperatures, which can shorten the life of the batteries.
Keep an eye on the temperature: Avoid exposing the batteries to high temperatures, which can reduce their capacity and shorten their lifespan. If possible, install a temperature management system to keep the batteries at optimal temperatures.
Avoid overcharging or deep discharging: Overcharging the batteries can reduce their capacity and shorten their lifespan, while deep discharging can cause permanent damage.
Monitor battery voltage and state of charge: Regularly check the voltage and state of charge of the batteries to ensure that they are operating within their specified range.
Use a battery management system: A battery management system can help you monitor the battery's health and performance, ensuring that you get the most out of your batteries.
Follow manufacturer's recommendations: Always follow the manufacturer's recommendations for battery maintenance and storage, as different types of batteries may have different requirements.
FAQ
- How to choose batteries for a solar system?
- Here are some key factors to consider when choosing batteries for a solar system:
Capacity: The battery capacity should be sized to meet the daily energy needs of your household and ensure that you have enough power to get through periods of low solar energy production.
Depth of discharge: This refers to the percentage of the battery's total capacity that can be safely discharged. A higher depth of discharge means that more of the battery's capacity can be used, making it more efficient.
Cycle life: This refers to the number of times the battery can be fully charged and discharged before it reaches the end of its useful life. Batteries with longer cycle life are generally more cost-effective over time.
Round-trip efficiency: This refers to the efficiency of the battery in converting stored energy back into usable electricity. Higher round-trip efficiency means that more of the stored energy can be used, which can improve the overall efficiency of the solar system.
Operating temperature: The temperature at which the battery can safely operate can have a significant impact on its performance and lifespan. Batteries that can operate at higher temperatures may be more suitable for hotter climates.
Compatibility: The battery should be compatible with the existing solar system, including the inverter and charge controller.
Cost: The cost of the battery should also be considered, as this can vary widely depending on the type and size of the battery.
- Can you add batteries to an existing solar system?
- Yes, you can add batteries to an existing solar system. By adding batteries, you can store the excess energy produced by the solar panels during the day and use it at night or during cloudy weather when there is less solar energy available. This can increase the overall efficiency and reliability of the solar system. Before adding batteries, it's important to make sure that your solar system is compatible and has enough capacity to support battery storage.
- Can off grid solar system work without batteries?
- Off-grid solar systems can technically work without batteries, but they would only be able to provide power while the sun is shining. During periods of darkness or cloudy weather, the system would not be able to produce power, which would result in an unreliable power supply. Batteries are usually included in off-grid solar systems to store excess energy generated during the day, so it can be used during periods of low sunlight. This allows for a more consistent and reliable power supply, even when the sun isn't shining.
- How to calculate batteries needed for solar system?
- The number of batteries needed for a solar system depends on several factors, including:
Power consumption: The first step in determining the number of batteries needed is to determine your power consumption needs. You will need to add up the total power consumption (in Watt-hours) of all the appliances and equipment you plan to run with the solar system.
System voltage: The system voltage will determine the size of the battery bank you need. The most common system voltages are 12, 24, and 48 volts.
Depth of discharge (DOD): DOD refers to the percentage of a battery's capacity that can be used before it needs to be recharged. A deeper DOD will result in a shorter battery life, so it's important to choose a DOD that balances battery life and power needs. A DOD of 50% is common for solar systems.
Autonomy: Autonomy is the amount of time you want your system to be able to run without sun. You can calculate autonomy by dividing the total energy stored in your battery bank by your average daily energy consumption.
With this information, you can use the formula:
Battery capacity (in Amp-hours) = Total energy consumption (in Watt-hours) / System voltage * DOD * autonomy (in hours)
It's important to use a battery with a capacity that exceeds your calculated needs to ensure your system can handle fluctuations in power consumption and weather conditions.
- What is your MOQ of solar system batteries?
- If it is our existing standard product, there is no moq requirement.
If it is a custom product, there is a MOQ requirement. However, the MOQ varies from material to material and you can contact us for specific information.
- How to ship my custom solar system batteries?
- The logistics companies we work with are strong. Currently, depending on your destination and order, we are able to provide options such as air freight, sea freight, express delivery, rail transport and trucking.
- Can you offer the certifications for our solar system batteries?
- We make some regular battery packs certificates every year. But most of our battery packs are customized for you. And we can help you to get the certification for your customized battery packs.
- Can we make one custom solar system batteries?
- Common materials are available to support one custom battery pack.However, if special materials are required, you will need to contact us for specific MOQ.
- What is the warranty of your solar system batteries?
- The warranty of our battery packs is one year. If you become our VIP, you can get extra 6 months.
- How can we pay?
- You can pay via T/T, Paypal.
- What is your terms of packing?
- Generally, we pack the goods in neutral brown cartons. If you have legally registered patent, we can pack the goods in your branded boxes.
- Which incoterms you usually take?
- Normally, train/sea will be DDP. And if you have your own shipping agent in China, EXW is supported (we can send your goods to your agent's warehouse).
- How do I know whether you've shipped my order or not?
- Tracking NO. will be offered as soon as your order be shipped out. Before that, our sales will be there to check the packing status, photo of the order and let you know the detail shipment information.
- What will you do if we got damaged products when arrive?
- If the batteries are damaged upon delivery, we will replace them at our cost. No charges will be made on your part if you show us images & video of the damage.
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