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Custom Battery Pack Manufacturer in ChinaCall us today
One Stop Custom Battery Packs Supplier in China
Over 20 engineers guarantee professional lithium & LiFePO4 battery pack solutions within 24 hours.
ISO 9001 quality management system guarantees the same performance for all custom battery packs.
Strict QC and manufacturing process for your wholesale battery & OEM battery packs.
100% on-time delivery of your customized batteries.
Custom 12V 24V 36V 48V 72V Li-ion or LiFePO4 battery packs.
Full range of certifications and safety reports: CE, UL, UN38.3, ROHS, MSDS, IEC62619, and more for your customized battery.
OUR PRODUCTS
Lithium-Ion Battery
• 12V Li-Ion Battery
Golf Cart Battery
• 12V Golf Cart Battery
• 24V Golf Cart Battery
• 36V Golf Cart Battery
• 48V Golf Cart Battery
• 72V Golf Cart Battery
WHY PURCHASE FROM KET
Accept Small OrderWith a low MOQ, you can market-test your business idea before it goes into mass production. KET helps you control your risk and we work with you as your partner to meet the new market trends in lithium or LiFePO4 custom battery packs.
Accept OEM/ODM13 years of OEM/ODM experience allows us to quickly provide the best custom battery pack solutions to cater to your specific specifications needs. And we will sign NDA with you if you need it.
Quality Battery CellOur batteries cell are sourced from reliable manufacturers (CATL, Samsung, LG, etc) and undergo rigorous quality checks to ensure they meet our high standards.
Great TeamPassionate 8 sales work closely with 20 engineers to provide fast email responses within 2 hours. All risks are controlled from the time of sample confirmation or the arrival of raw materials.
Professional Logistics ArrangementWe will arrange all security and customs documents for you free of charge, the documents include MSDS, UN38.3, UL, CE, FCC, RoHS. we also support DDP service, and we have absolute advantage in logistics price.
Wide Range of ProductsWide range of products: In 13 years, KET has served numerous customers in different industries and has provided custom battery pack solutions for a wide range of applications. We have enough design and manufacturing experience to meet your different needs.
Pictures from Wholesale Battery Supplier
- Factory
- Certification
- Production & Test Equipment
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UL
CB
MSDS
UN38.3
CE
IEC-62133
Certification for Safe Transport of Goods
air transport
ISO 9001 2015
invention of Lithium battery testing equipment
Battery charge and discharge test system
Rechargeable battery performance testing equipment
Vibration Testing Machine
Salt spray test cabinet
Lithium battery automatic testing equipment
Discretionary cabinets
Integrated Tester
Battery Detector
Automatic Wire Stripping Machine
Automatic spot welding machine
HOW TO START YOUR CUSTOM BATTERY PACK DESIGN
Step 1: INQUIRYPlease contact us via E-mail with your requirements, we will get back with custom battery pack solution within 24 hours.
Step 2: QUOTATIONOur engineers will find the Best custom battery pack solution for your projects with prices, lead time, and payment details.
Step 3: SAMPLESWe will finish your OEM Battery samples in 3 Days (for most of the time), and Send them for your test.
Step 4: DEMOFor Custom Private Molds (if available), a demo sample will be sent to you for confirmation prior to mass production.
Step 5: BULK-ORDERIf the demo sample test goes well, you can pay the deposit and we will start mass production. You can arrange QC staff during or when the production is finished.
Step 6: SHIPPINGWe have stable cooperation with many large logistic companies and can provide the most reliable and most competitive logistic methods. We also provide all necessary documents, such as MSDS, UN38.3, IEC62133, etc.
Global Partner
KET is a professional ShenZhen OEM battery manufacturer. Since its establishment 13 years ago, we have served many brand owners from all over the world, covering cusumer electronics, supermarkets, e-commerce and other industries.Our OEM batteries services include customized voltage, casing, capacity, size, connector and more.
WHAT OUR PARTNERS SAY
"Hi Eddie
We greatly appreciate your consistent and punctual delivery of goods throughout the past four years. We are extremely satisfied with our working relationship during this time. Thank you, Eddie, you really did a good job."
"Hey Jason It's difficult to judge, although at least KET makes an incredibly good impression. What they have already bombarded me with certificates, test reports, and details is really impressive. Believe they don't have to hide behind any European company."
Daniel
"The project is government-sponsored, and they have a policy of payment upon delivery of satisfactory products within the specified timeframe. As a custom project, we had concerns about potential financial risks, but fortunately, everything went smoothly, and our efforts paid off. We are extremely grateful for Kelly's professional support throughout the process. Looking ahead, our next project might involve 15,000 packs, and we hope to commence it in the near future. Thank you once again for your continued trust and collaboration."Marialnes
"Thank you for the battery packs. They tested well, as usual. I CC'd my friend Bob, who's also in the battery business. You always do a great job."
Helmut
The Ultimate Guide to Batteries
- How to choose a reliable battery company?
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When choosing a reliable battery company, there are several factors to consider. Here are 5 tips to help you make an informed decision:
Reputation and Experience: In recent years, the lithium battery industry has grown at a rapid pace and a large number of new new energy companies have emerged. With so many custom battery pack manufacturer to choose from, reputation and experience is the first paragraph in identifying whether a company has the strength.
Quality and Performance: Do Companies That Manufacture Batteries have an ISO 9001 quality management system? Are their battery products fully certified? This is an important criterion for determining the strength of a Battery Manufacturer Company.
Research and Development: A company's investment in research and development can also tell you a lot about their strengths. Battery manufacturing and testing equipment is very expensive, so you can judge the custom battery pack company's R&D capabilities by the equipment they purchase. The number of R&D staff is also an important indicator.
Product Range: Evaluate the company's product range. A reliable battery company should offer a diverse portfolio of batteries to cater to various applications and customer needs.
Environmental Responsibility: Consider the battery company's commitment to environmental sustainability. Looking for companies that can insist on a greener way of manufacturing batteries and can develop greener battery technology Because the ultimate goal of our new energy development remains the protection of the environment.
- Do AGM batteries need to be vented?
- The answer is NO. The design of AGM batteries incorporates a valve system that allows the release of excess gas generated during the charging process. This valve prevents pressure buildup within the cell, making them virtually maintenance free in terms of ventilation.
But there is a special case when the battery is overcharged (or charged too fast, or not enough venting is left for AGM batteries) AGM batteries are subject to hydrogen buildup. In this case, it is necessary to vent the AGM battery.
- Does putting batteries in the freezer recharge them?
- No. You don't need to do this because battery technology is so advanced now. And Freezing Your Batteries can even damage the battery, there is absolutely no need to do so.
- What battery terminal do you connect first?
- When connecting a battery, you need to connect the positive terminal first and disconnect it last.
When disconnecting a battery, you need to disconnect it last.
This is the standard practice in order to minimize the risk of short circuits and sparks near the battery.
- How to tell if a lithium ion battery is bad?
- There are 6 common signs that can indicate a lithium-ion battery is no longer functioning properly or has gone bad. Here are the following:
Decreased Capacity: If the battery doesn't hold a charge as well as it used to and the device's runtime has significantly decreased, it is a sign of a degraded battery.
Rapid Discharge: If you notice the battery discharging quickly even when the device is not being used, it could be a sign of a faulty battery.
Overheating: If the battery feels unusually hot to the touch or if the device becomes hot while charging, it's a cause for concern and may suggest a faulty battery.
Swelling or Bulging: If you notice the battery has physically expanded, do not use it. Swelling is often caused by internal chemical reactions or excessive heat, and the battery should be replaced immediately.
Leakage or Corrosion: If you observe any signs of leakage, such as unusual fluid or residue around the battery or corrosion on the battery contacts, it indicates a faulty battery. Than your battery should be handled with care and disposed of properly.
Failure to Charge: If the battery no longer charges when connected to a power source, even after trying different charging cables and adapters, it could suggest a faulty battery. However, it's worth checking if the charging port or the charger itself is the issue before concluding it's the battery.
- How to connect 4 12v batteries to make 48v?
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Connect the batteries in series and add up the voltage: 2 12V batteries in series will get 2*12V=24V; 3 12V batteries in series will get 3*12V=36V; 4 12V batteries in series will get 4*12V=48V
From this we can conclude that we only need to make 4S (4 series) of 4 12V batteries to get a 48V battery pack. The connection way is as follows:
- How to wire 3 12v batteries for 36v?
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Two batteries are connected in series and the battery voltage is superimposed.
So the battery pack with 2 12V cells in series is still 24V; the battery pack with 3 12V cells in series is 36V.
From this, we can conclude that we only need to connect 3 12V batteries in 3S (3 series connection) to get a 36V battery pack. The connection is as follows:
- Can we make one custom battery pack?
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Common materials can support one custom battery pack (MOQ=1PCS). However, if special materials are required, you will need to contact us for specific MOQs.
- Which rechargeable battery is better, NiMH or lithium?
- Here's the main difference of NiMH and lithium batteries:
Energy Density: lithium batteries have a higher energy density of around 150-200 watt-hours per kilogram (Wh/kg), while NiMH batteries have an energy density of approximately 60-120 Wh/kg.
Self-Discharge: NiMH batteries have a higher self-discharge rate of around 20-30% per month, while lithium batteries typically have a self-discharge rate of less than 5% per month.
Cycle Life: lithium batteries can endure about 500-1000 charge-discharge cycles before their capacity significantly degrades, whereas NiMH batteries have a cycle life of about 200-500 cycles. And LiFePO4 batteries of the lithium batteries family is particularly good, with a cycle life of 2000 to 5000 cycles.
Cost: The cost of NiMH batteries can range from $1 to $2 per watt-hour (Wh), while lithium batteries can range from $0.2 to $0.4 per Wh. And with the rapid development of the lithium battery industry, their cost is still further down.
The lithium battery has become the more popular rechargeable battery due to its advantages over the NiMH battery.
So are you looking for a quality rechargeable battery supplier or manufacturer? KET will be the right choice for you. As a leading lithium rechargeable battery company in China, KET has a research and development team of more than 20 people. We can provide a custom battery pack solution for your project within 24 hours. We are also a certified battery company with CE, FCC, RoHS, MSDS, UN38.3 and other approvals and safety reports for our products. These ensure the safety of your products in transit and your compliance in the local market.
- Can a bad battery cause a misfire?
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Yes, it is possible for a bad battery to cause an engine misfire in your vehicle. Please note that it is only a possibility.
While the battery itself will not essentially cause a misfire directly, it can contribute to the conditions that lead to a misfire.
1. The battery is responsible for supplying power to the vehicle's ignition system, which includes the spark plugs. If the battery is bad, it cannot supply enough power to the ignition system. This can result in a weak or inconsistent spark from the spark plug, leading to a misfire in the engine cylinder. 2.
2. A bad battery can also affect vehicle components such as the fuel injectors or the engine control module (ECM). If these components are not receiving the proper voltage, or if there are power fluctuations due to a faulty battery, this can disrupt the timing of the fuel and air ignition, resulting in a misfire.
So to minimise the risk, KET has two suggestions as follows:
1. Only buy batteries from a competent battery maker, either in terms of whether the product is fully certified or whether the factory has passed some international quality management system, etc.
2. Maintain the battery regularly and replace it immediately if you find that it is weak. Never use a weak battery all the time to save money, as this will only increase your risk significantly.
- What is a marine battery?
- A marine battery is a battery pack system specifically designed for marine applications (e.g. boats, yachts, etc.). Due to the specific nature of the environment, marine battery generally has these characteristics: a robust battery casing, waterproof, the ability to withstand humidity, salinity and constant vibration, etc.
If distinguished functionally, marine batteries are divided into starter batteries (capable of delivering high currents for short periods of time) and deep cycle batteries (continuous and stable energy output).
Distinguished by the chemical composition of the electrodes as well as the electrolyte, there are 4 common types of marine batteries as follows:
There are several types of marine batteries available:
Flooded Lead Acid (FLA) Batteries: These are the traditional and most common type of marine batteries. They are cheap and provide reliable power. However, they require regular maintenance, including checking and refilling the electrolyte levels.
Absorbent Glass Mat (AGM) Batteries: AGM batteries are maintenance-free and have a sealed design. They are highly resistant to vibration, can handle deep discharges, and have a lower risk of acid leakage.
Gel Batteries: Gel batteries are another type of sealed battery commonly used in marine applications. They use a gel electrolyte, which makes them spill-proof and resistant to vibration. Gel batteries have a longer lifespan and can withstand deep discharges, but they are generally more expensive than other types.
Lithium-Ion (Li-Ion) Batteries: Lithium-ion batteries are becoming increasingly popular in marine applications due to their high energy density, lightweight design, and long lifespan. In the lithium-ion battery family, the LiFePO4 battery is the most special. LiFePO4 batteries are a specific type of lithium-ion battery known for their safety, stability, and long cycle life. They provide consistent power output, have a wide operating temperature range, and are resistant to thermal runaway. LiFePO4 batteries are often chosen for demanding marine applications. And more importantly, it is more environmentally friendly than all the above battery types.
- How to fix overloaded battery?
- If you suspect that your battery is racked, it is important to avoid repairing potential damage. The following are the 7 steps recommended by KET to repair the battery for your overload:
1. Unplug the battery: After suspecting, the first step is to disconnect the battery from its power source or from the connected device. It will minimize the risk of electric damage.
2. Check physical damage: Check battery bulbs, leaks or corrosion. If you find one of the courses, it is advisable to replace the battery.
3 Cool the battery: Overloads can cause excessive heat, allowing you to cool the battery by allowing you to cool.
4. Measure tension: Use digital multimeter to measure the battery tension. If the tension of the battery is exceeded.Orvert recommended tension.
5. Change the battery: If the voltage is significantly higher than the recommended level, you will need to download the battery. There are 2 ways to download:
a. Natural download: Disconnect the battery and leave it in a safe place. With the battery will unload themselves naturally. Also, this method can be slow and you need to keep sure that you keep the battery during this process.
b. Load resistance: Connect the load resistance to excessive loads of battery terminals. Adequate resistance by battery voltage and capacity. TheResign will dissipate excess energy, gradually reducing the battery tension.
6. Control the battery: During the time, keep a look at the battery voltage with a multimeter.Tension falling below the recommended voltage, the process of downloading can stop.
7. Load or replace: Once downloaded, you can load the battery. Also, if you are unsure about the battery state, or if it is badly damaged, it is recommended that you will be placed on the side.
- How to Connect 4 12V batteries to make 24V?
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Before answering this question, review the knowledge of the series and parallel connections.
1. Batteries connected to series, tension will be added: 2 12V batteries will be connected to series 2 * 12v = 24V
2. Parallel batteries, the voltage remains the same: 2 24V batteries parallel to the parallel, the voltage is still 24v.
At this point, let's look at the question again: How to connect 4 12V batteries to make 24V?
We can easily know that we only need Connect 4 12V batteries in 2s2p (2 series and parallel to 2) 24v battery pa to achieve ket. These are: as follows:
- How to Connect 8 12V batteries to make 24V?
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When the batteries are connected to the series, the voltage is added; when the stack is connected parallel, the tension remains the same.
4 12V battery battery is still 12v; 2 12V batteries in series, 2 * 12v = 24V.
From there, we need 2s4p (2 series, 4 parallel) that we only need 8 12v batteries to achieve the 24V battery pa ket EA.Connection mode is as follows:
Contact KET to Start Your Custom Battery Pack Project
Sales Director
Related Li-ion or LiFePO4 Battery Video
3.2V LFP Battery Cell
It provides stable voltage and long cycle life, making it suitable for electric vehicles, energy storage systems, and portable devices.
Li-ion Battery Cell
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Custom LFP Battery Pack
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Battery Pack Solution
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Li-ion Battery Manufacturing
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LiFePO4 Battery OEM/ODM
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Portable Power Station
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Li-ion Ebike Battery
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Li-ion RV Battery
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Wholesale Ebike Battery
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Battery Pack Manufacturing
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Custom Marine Battery
KET can custom marine batteries, which are tailored for marine applications, providing reliable power on boats and other watercraft.
More Question About Purchasing
- How to ship my custom battery pack?
- 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.
- What is your MOQ of OEM battery packs?
- For our existing standard products, there is no minimum order quantity (MOQ) requirement. However, for custom battery packs, there is an MOQ that varies depending on the material used. As a leading custom battery pack manufacturer in China, we want to grow with our customers, so we will fully cooperate with your every request. Please feel free to contact us for specific information regarding MOQ for custom products.
- How do I know if you have shipped my order?
- A tracking number will be provided as soon as your order is shipped out. Prior to that, our sales team will be actively monitoring the packing status, taking photos of the order, and keeping you informed of the detailed shipment information.
- Which incoterms you usually take?
- Normally, for train and sea shipments, we offer DDP service, taking care of all customs clearance and delivery to your designated location. If you have your own shipping agent in China, we also support EXW (Ex Works) terms, where we can deliver the goods to your agent's warehouse for further handling and transportation.
- What is your terms of packing?
- In general, we package the goods in brown cartons. However, if you you need, we can add your logo or company information in cartons.
- How can we pay?
- You can pay via T/T, Paypal.
- What is your full company name?
- Guangzhou Kaierte Electronic Technology Co., Ltd. KET is a professional custom battery pack manufacturer with 13 years of R&D and manufacturing experience, serving hundreds of customers from all over the world.
- What will you do if our product arrives damaged?
- If the battery is damaged on delivery, please show us images and videos of the damage. We will replace the battery at our expense.