CNS BATTERY – Original EV Powertrain Customized for Nissan & BMW

Original factory standard R&D, ultimate safety and long battery life, ten years of technological accumulation.

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CNS is a leading company specializing in the research and development and manufacturing of automotive power batteries, providing high-performance lithium-ion battery solutions for premium brands such as Nissan and BMW. Leveraging advanced engineering technology and globally standardized manufacturing processes, we ensure our batteries possess superior durability, safety, and energy efficiency, helping your electric vehicles achieve longer driving range, faster charging speeds, and zero-failure reliability. As an industry pioneer, CNS is committed to sustainable innovation, employing environmentally friendly materials and intelligent management systems to ensure every user enjoys safe and efficient power support while driving. Choose CNS, choose a reliable future.

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CNS Automotive Batteries is a leading manufacturer specializing in high-performance lithium-ion power batteries for Nissan and BMW vehicles. We focus on innovation, reliability, and sustainability, using advanced engineering and global-standard production processes to deliver batteries with superior durability, safety, and energy efficiency. Our solutions ensure longer driving ranges, faster charging, and zero-fault performance, empowering your electric journey with trusted power. Backed by years of expertise and partnerships with top automotive brands, CNS puts your mind at ease by providing batteries that exceed industry standards.

Our unbeatable warranty covers all CNS Automotive Batteries for up to 2 years or 80,000 km (whichever comes first), far surpassing standard industry offerings. It includes protection against defects in materials and workmanship, with free replacement or repair options. We also provide prorated coverage for performance degradation, ensuring your battery maintains at least 70% capacity over the warranty period. This comprehensive policy reflects our confidence in the quality and longevity of our products, giving you peace of mind on every drive.

Our professional customer service team offers support via phone, email, or online chat, answering product questions, providing technical advice, installation guidance, and after-sales troubleshooting. Our team comprises automotive battery certification experts dedicated to rapid problem-solving—most issues are resolved within 24 hours. We also offer personalized consultation services for Nissan and BMW models. Your satisfaction is our top priority, and we are committed to providing you with a seamless experience from purchase to ownership.

Yes, CNS Automotive Batteries supports international sales to over 50 countries, including key markets in Europe, North America, and Asia. We handle customs compliance, provide voltage-compatible options for global standards, and offer localized shipping with duties calculated at checkout. Pricing is in local currency where available, and we ensure compatibility with Nissan and BMW models worldwide. For restricted regions or bulk exports, please contact our sales team for tailored quotes and regulatory guidance. We’re committed to powering electric vehicles globally with reliable, high-quality batteries.

Yes, CNS Automotive Batteries are designed specifically for Nissan and BMW models, ensuring broad compatibility. We support a wide range of popular models, including electric and hybrid vehicles from the Nissan Leaf, Ariya, BMW i3, i4, and iX series. Compatibility is based on OEM standards, including voltage, capacity, and interface matching (such as Type 2 connectors). To check your specific vehicle model, simply provide our customer service team with your vehicle’s year, model number, and VIN code for instant confirmation and to ensure perfect compatibility.

Installing a CNS battery typically takes 1-2 hours, depending on your vehicle model and experience level. For a professional technician, it may only take 50 minutes; DIY users may need additional time to prepare tools. The installation process is safe and simple, but we recommend having it done by a certified technician to avoid warranty issues. We offer a comprehensive installation guide, including: Step-by-step installation videos: We provide high-definition tutorial videos, such as video steps for the Nissan Leaf: 1. Disconnect vehicle power; 2. Remove old battery mounting brackets; 3. Connect new battery cables; 4. Test voltage and system integration; 5. Reassemble and run diagnostics. Video call installation guidance: Schedule a free video call with our customer service (supports Zoom or Line) where an expert will guide you step-by-step in real time, from tool preparation to troubleshooting. The guide also includes a PDF download covering safety precautions such as wearing protective gear and avoiding short circuits. More resources can be found in the “Support” section of the website.

CNS Automotive Batteries offers a variety of secure and convenient payment options to lower the barrier to entry and ensure a seamless transaction. Contact customer service to confirm your payment method when signing the contract.

CNS Automotive Batteries provides DDP (Delivered Duty Paid) service to most countries worldwide, meaning we assume all responsibility for shipping, customs duties, and clearance until the battery is delivered to your door. This service is applicable to Nissan and BMW automotive batteries and aims to streamline the international sourcing process, especially for key markets in Europe, North America, and Asia.

However, because lithium-ion batteries are classified as dangerous goods (UN 3480 or UN 3481), international transport is subject to strict regulations, including IATA (air), IMDG (ocean), and ADR (land) standards. We partner with companies like FedEx, DHL, and UPS to ensure compliance, but additional restrictions apply to certain countries: please contact our customer service for your customized shipping solution.

Pre-sales & after-sales service

We are committed to providing you with a comprehensive Nissan Leaf / BMW i3 car battery purchasing experience, from pre-sales consultation to after-sales support, ensuring every step is reliable and professional. This is our customized service designed to give you peace of mind during your purchase.

Before you decide to purchase, we offer a range of free support services to help you understand the product and ensure it meets your needs:

1. Personalized Consultation: Through online chat, phone, or email, our professional consultants will answer your questions about the specifications, range, and charging compatibility of the Nissan Leaf / BMW i3 battery, ensuring the battery is perfectly compatible with your vehicle model (e.g., Leaf 2011-2023 models).

2. Compatibility Assessment: Upload your vehicle information (such as VIN or model year), and we will check the battery compatibility for free to avoid any mismatches after purchase.

3. Detailed Product Demonstration: We provide high-definition videos demonstrating the battery structure, installation steps, and comparisons with original factory batteries, helping you intuitively understand the performance advantages (such as higher capacity and longer lifespan).

4. Transparent Pricing and Calculation: Based on your needs, we provide instant quotes, including battery price, shipping costs, and potential discounts.

These services are designed to address your concerns and ensure everything is transparent and efficient before you make a purchase.

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After your purchase, our commitment extends beyond delivery to continuous support and assurance:

1. Installation Guidance and Support: We provide detailed installation manuals and video tutorials to ensure safe installation.

2. Quality Warranty: All batteries come with a minimum 2-year/80,000KM warranty (depending on the model), covering manufacturing defects; free replacement or repair will be provided if any problems occur.

3. Technical Support Hotline: Online support is available to answer your questions regarding battery maintenance, charging optimization, or troubleshooting.

4. Customer Feedback Mechanism: A dedicated account tracks your usage experience, collects feedback, and provides optimization suggestions to ensure the long-term stable operation of your battery.

Choosing us means not only buying a battery but also gaining a reliable partner. Contact us today to start your electric journey!

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User reviews

Mark T. (California, USA)
Mark T. (California, USA)
Nissan Leaf ZE0 (2015 model) | 40kWh upgraded to 62kWh
“The original battery in my car lasted 8 years, but the range had dropped to only 120km. Replacing it with an original manufacturer battery would cost $16,000, which was ridiculous! After comparing options, I chose a 62kWh battery from CNS, which cost only $7,800, less than half the price of the original. Before purchasing, I uploaded my VIN for a free compatibility assessment, which confirmed perfect compatibility. After receiving the battery, I installed it following the video tutorial; it was plug-and-play and only took 2 hours. The BMS programming was also successful on the first try. Now, the full charge range is 430km, slightly less than the official 440km, but more than enough for daily commuting, and there's no significant power drain even when using the air conditioning on the highway. I've been using it for almost a year, and the battery capacity is still at 11 out of 12 bars. The 2-year/80,000km warranty is reassuring, and customer service is responsive when I occasionally contact them with maintenance questions.”
Tom H. (Texas, USA)
Nissan Leaf ZE0 (2014 model) | 62kWh
"I used to struggle for ages just to change a car light bulb, so for something as major as changing the battery, I initially wanted to find a professional mechanic. But the installation fee was £800, which I thought was too expensive. CNS customer service sent me an installation video, and I asked a friend (who's into cars) for advice. He said, 'The steps in the video are very detailed, explaining everything clearly from disconnecting the power to programming. You only need basic tools like a wrench and screwdriver, and it should take about 2 hours.' Following the video, it took me 1 hour to remove the old battery (mainly because the fixing screws were a bit tight), and another hour to install the new one. The wiring was very simple (the connectors were color-coded, matching the steps in the video). I encountered a small problem during programming, but I contacted customer service and they guided me remotely for 5 minutes, and the problem was solved. Now the full charge range is 430km, 200km more than before. The installation was a bit tiring, but I saved a lot of money. Even if you're not technically inclined, you can easily do it yourself with the help of someone who knows a little about cars and by following the video!"
Lisa K. (Berlin, Germany)
Lisa K. (Berlin, Germany)
BMW i3 (2017 model) | 45kWh
‘’After the original battery degraded, the 4S dealership quoted €12,000 for a replacement. My friend recommended CNS, so I decided to give them a try. Unexpectedly, the brand-new CATL battery cells were of the same quality as the original. When I encountered wiring connection problems during installation, I contacted customer service, and they arranged remote video guidance within an hour. The engineer guided me through the wiring step by step, making it completely hassle-free. Now, the full charge range has increased from the original 180km to 290km, and I only need to charge it once a week for daily commuting. The sea shipping took 6 weeks, and the packaging was a fumigation-free wooden crate, so the battery arrived without any damage. The most surprising thing is the lifetime technical support. Last month, I consulted about winter charging optimization, and customer service directly sent me a customized guide. The value for money is incredible!‘’
David L. (London, UK)
Nissan Leaf ZE1 (2021 model) | 62kWh
"Previously, I tried to save money by replacing my battery with a refurbished one, but it swelled up after only six months, and the range dropped drastically. I was considering buying a new car, but a friend who works in car repair told me that replacing the battery would be much cheaper than buying a new car. He strongly recommended CNS BATTERY. After listening to my friend's advice and replacing my battery with a 62kWh CNS battery, I realized the difference that brand-new CATL battery cells make! The full charge range is 440km, consistent with the specifications, and the charging speed is the same as the original. It feels like my car has been revived! Haha. Before the purchase, they performed a VIN compatibility check to confirm that it wouldn't affect the original car warranty. The installation technician said the wiring connectors were a perfect match for the original factory parts, requiring no modifications. Most importantly, the price was only $8200, saving me nearly $10,000 compared to the original manufacturer's price. The 2-year warranty also provides peace of mind. I highly recommend it!"
Mike's Auto Service (Vancouver, Canada)
Mike's Auto Service (Vancouver, Canada)
Repair shop procurement | Compatible with multiple Leaf ZE1/ZE0 models
"As a repair shop, we replace electric vehicle batteries for our customers every month, and CNS is currently our most reliable supplier. Their batteries have excellent compatibility, covering all Leaf ZE0/AZE0/ZE1 models, and they also support OEM customization. What's most convenient is their pre-sales compatibility assessment; after the customer provides the VIN, they can confirm the matching solution within one day, avoiding order errors. The batteries use brand-new CATL cells, resulting in an almost zero failure rate. Customer feedback indicates that the range meets the stated specifications, and the 2-year/80,000km warranty is longer than other brands. Now, all our Leaf battery replacement orders use CNS BATTERY."
Javier R. (Paris, France)
Nissan Leaf ZE0 (2014 model) | 68kWh
"The original battery had degraded to only 80km of range. After replacing it with a CNS 68kWh battery, the full charge now provides 470km of range, and even in cold winter conditions, it maintains around 400km, which is perfectly sufficient for long-distance travel. I installed it myself; the video tutorial was very detailed, and connecting the 6 power lines and 1 signal line was straightforward with no errors. The only drawback was that sea shipping took 8 weeks; if you need your car urgently, I recommend choosing the expedited service. The battery weight is similar to the original one, and the handling hasn't been affected. I've been using it for 10 months, and I can see the battery health status in real-time. The 2-year/80,000km warranty is more substantial than many other brands, making it incredibly cost-effective."
Thomas B. (Amsterdam, Netherlands)
Nissan e-NV200（2022 款）| 50kWh
"My old car battery was 5 years old and had degraded to the point where it could only travel 150km, requiring daily charging, which was very inconvenient. I replaced it with a 50kWh battery from CNS, and the installation was surprisingly simple. The complete battery pack was plug-and-play; it automatically matched the system after plugging in the connector, without any additional steps. Now, the full charge consistently provides 348km of range, and even with the air conditioning on during highway driving in the summer, the range never dropped below 330km, which is much better than the old battery. Last month, I went to the beach, and even in the high temperature of 38℃, the battery didn't experience any overheating protection issues; the discharge was very stable. The seller also provided a free installation toolkit, including insulated gloves and terminal cleaner, which was very thoughtful. After two months of use, the battery capacity is still at 12 bars, and the after-sales service even sent a battery maintenance manual explaining how to extend its lifespan – truly professional! Thank you, CNS team!"
EK Auto Repair (Rome, Italy)
Repair shop supplies | Compatible with multiple Leaf models + BMW i3
‘’Our shop specializes in electric vehicle repair, and we've been cooperating with CNS for almost two years, having purchased over 30 battery packs from them. The biggest advantage of their batteries is their strong compatibility; they work perfectly with Leaf ZE0/AZE0/ZE1 and BMW i3 models, and they also support OEM customization to meet the specific needs of some customers. The quality of their CATL brand new battery cells is excellent, with virtually zero failure rate, and customer feedback indicates that the range meets the advertised specifications. After-sales service is very responsive; last time a customer encountered a BMS programming issue during installation, and an engineer provided remote video guidance, resolving the problem in just one hour. Although logistics take 4-8 weeks, the packaging is very robust, and there have never been any instances of damage. The price is 50% lower than the original manufacturer, and the 2-year warranty is longer than other brands. Customer satisfaction is very high, and we will continue to cooperate with them!‘’

Advantages of CNS automotive batteries

Comparison dimensions

CNS BATTERY

Numerous brands

Original factory battery

Battery cell quality

Utilizes brand-new, original battery cells from CATL (manufactured by China's largest battery factory, offering top-tier performance and safety).

Discarded batteries are being repaired and reused, despite the fact that the battery cells are aged and their performance has severely degraded.

The battery cells are supplied by the original manufacturer, guaranteeing quality but offering no additional technological advantages.

Battery life

Stable and durable, with a lifespan far exceeding that of refurbished batteries, suitable for long-term use.

The battery life is significantly shortened, and problems such as swelling, power failure, and a sudden drop in battery life are likely to occur.

Stable lifespan, meeting original vehicle factory standards.

Warranty Coverage

24-month/80,000-kilometer official warranty, far exceeding the warranty standards of most original car batteries, ensuring worry-free use.

There is no clear warranty or the warranty period is extremely short (26 months/60,000 kilometers), making it difficult to seek redress in case of malfunction.

Standard warranty (usually shorter than 80,000 kilometers), with limited coverage.

Price advantage

For only about 50% of the price of an original manufacturer battery, you can enjoy a quality experience twice as good as that of a refurbished battery.

The price is high, usually 70%-80% of the original manufacturer's price, but the cost-effectiveness is extremely low (due to frequent repairs/high replacement costs).

The price is expensive, including a brand premium, and the value for money is poor.

Core advantages

The best choice for value for money, combining brand-new battery cell quality, extended warranty, and an affordable price.

Lack of core competitive advantages, posing numerous potential risks.

Strong brand endorsement, suitable for users who prefer original, factory-matched parts.

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Original equipment manufacturer (OEM) compatible, saving 50%+ in costs.

Specializing in Nissan/BMW automotive batteries, defining reliability with expertise - we have deep expertise in the battery field for the entire Nissan/BMW model range, providing original factory-grade precise adaptation solutions for every vehicle.

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