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Revive Your Nissan Leaf or BMW i3 with a New 40-68kWh EV Battery Pack

Is your daily commute limited by an aging battery? Are you tired of paying dealership prices for a replacement? At CNS Battery, we specialize in high-performance, OEM-compatible EV battery packs designed specifically for Nissan Leaf and BMW i3 owners.

We understand the frustration of range anxiety. That’s why we engineer our battery packs using brand-new CATL lithium-ion cells—the same quality used by top manufacturers—to deliver superior range, faster charging, and unmatched durability. Whether you drive a Leaf ZE0, ZE1, AZE0, or a BMW i3, we have the perfect solution to get you back on the road with confidence.


Why Choose a New CNS Battery Over Refurbished?

When your original battery degrades, the choices are often limited: pay exorbitant prices for a factory replacement or gamble on a used/refurbished pack. CNS Battery offers a third, superior option.

Unlike refurbished batteries made from recycled cells—which often suffer from swelling, sudden death, and short lifespans—our packs are built from the ground up using brand-new, A-grade cells.

  • Zero Risk of “Hidden” Age: Refurbished batteries are a gamble. You never know if the cells inside are already 5 or 10 years old. With CNS, you get a brand-new 40kWh, 50kWh, 62kWh, or 68kWh pack.
  • Unbeatable Value: You save over 50% compared to OEM prices, yet you get performance that is twice as reliable as a refurb.
  • Plug-and-Play Compatibility: We adhere strictly to OEM standards. Our packs match the voltage, capacity, and physical dimensions of your original Nissan or BMW battery, ensuring a seamless installation without modifications.

Upgrade Your Range: 40kWh to 68kWh Options

One of the most common questions we get is: “Can I upgrade my capacity?” The answer is a resounding Yes.

Whether you own a Nissan Leaf or a BMW i3, our modular design allows you to swap out your old, degraded pack for a higher-capacity solution.

For Nissan Leaf Owners (ZE0, ZE1, AZE0)

We offer a complete range of upgrades to eliminate range anxiety:

  • 40kWh Pack: The perfect entry-level replacement for city driving.
  • 50kWh Pack: A balanced upgrade offering significantly more range than the base model.
  • 62kWh Pack: The most popular choice, restoring your Leaf to near-new capabilities.
  • 68kWh Pack: The ultimate upgrade. This high-capacity solution pushes the boundaries, offering a full-charge range of up to 470km—perfect for long-distance travel.

Real-World Experience: Javier R. from Paris upgraded his 2014 Leaf from a dead battery to our 68kWh pack. He reports a consistent range of 470km and notes that even in cold weather, it maintains 400km—more than enough for his needs.

For BMW i3 Owners

The BMW i3 is a brilliant city car, but its range can be restrictive. We provide direct replacements and upgrades for the i3 series, including:

  • 45kWh, 50kWh, and 62kWh Lithium Battery Modules.
  • Our packs are engineered to integrate with the i3’s unique drivetrain, ensuring the “Ultimate Driving Machine” feel remains intact.

The CNS Advantage: Safety, Warranty & Support

We don’t just sell batteries; we sell peace of mind. As a leading manufacturer with over a decade of R&D, we stand behind our products with an industry-leading warranty and support structure.

1. Unbeatable Warranty Protection

We offer a 2-year / 80,000 km warranty (whichever comes first) on all our automotive batteries. This far surpasses the standard industry offering and reflects our confidence in the product. The warranty covers:

  • Defects in materials and workmanship.
  • Free replacement or repair.
  • Protection against performance degradation (maintaining at least 70% capacity).

2. Lifetime Technical Support

Installing a battery can seem daunting, but you’re not alone. We provide lifetime technical support:

  • Step-by-Step Videos: Detailed tutorials for every model (e.g., disconnecting power, removing mounting brackets, connecting cables).
  • Remote Video Guidance: Schedule a video call with our engineers for real-time help during installation.
  • 24-Hour Response: Most technical inquiries are resolved within 24 hours.

3. DIY or Professional Installation

Whether you are a seasoned mechanic or a first-time DIYer, our packs are designed for ease:

  • Plug-and-Play: Most connections are color-coded and match the original factory parts.
  • Toolkit Included: We often provide free insulated gloves and terminal cleaners to make the job safer and easier.

Don’t Just Take Our Word For It: Real Customer Results

Our customers are our best advocates. Here are a few stories from drivers who chose CNS to revive their EVs.

Mark T. (California, USA) – Nissan Leaf ZE0

“Replacing the original battery would have cost $16,000—that was ridiculous! I chose a CNS 62kWh battery for $7,800. The installation was plug-and-play, taking just 2 hours. Now, my full charge range is 430km. I’ve been using it for almost a year, and the battery is still at 11 out of 12 bars.”

Lisa K. (Berlin, Germany) – BMW i3

“After my original battery degraded, the dealership wanted €12,000. I tried CNS and was shocked by the quality. The new CATL cells performed exactly like the original. With video guidance from customer service, I installed it myself. The range jumped from 180km to 290km!”


Ready to Extend Your Range?

If you are ready to say goodbye to range anxiety and expensive dealership quotes, CNS Battery is your solution. We provide the highest quality, brand-new lithium-ion battery packs at a fraction of the cost.

Simple Steps to Your New Battery:

  1. Select your vehicle model (Nissan Leaf or BMW i3).
  2. Choose your desired capacity (40kWh to 68kWh).
  3. Submit your details for a personalized quote.

Don’t let an old battery kill your electric dream. Get a free quote today and experience the CNS difference.

Get Your Free Custom Quote Now


Frequently Asked Questions (FAQ)

1. Are CNS batteries compatible with my specific Nissan or BMW model?

Yes. We specialize in Nissan and BMW models. Our batteries are designed to OEM standards, matching voltage, capacity, and interface (such as Type 2 connectors). To be 100% certain, you can provide your VIN (Vehicle Identification Number) to our customer service team for a free compatibility check.

2. What is the warranty policy?

We offer a 2-year / 80,000 km warranty (whichever comes first). This covers defects in materials and workmanship, as well as performance degradation (ensuring the battery maintains at least 70% of its original capacity). This warranty is significantly longer than what most competitors offer.

3. How long does installation take?

For a professional technician, installation typically takes 1-2 hours. DIY users may take a bit longer depending on experience. We provide comprehensive step-by-step video guides and PDF manuals to assist you. Most customers find the process straightforward as it is largely “plug-and-play.”

4. What kind of cells do you use?

We use brand-new, A-grade lithium-ion cells manufactured by CATL (Contemporary Amperex Technology Co. Limited), one of the world’s largest and most reputable battery manufacturers. We do not use refurbished or recycled cells, ensuring maximum lifespan and safety.

5. Do you ship internationally?

Yes, we support international sales to over 50 countries, including the USA, Canada, UK, Germany, and Australia. We handle customs compliance and offer DDP (Delivered Duty Paid) service in many regions. Please contact our sales team for specific shipping times and costs to your location.

Looking for the perfect battery solution? Let us help you calculate the costs and feasibility.

Click below to apply for 1-on-1 technical support and get your personalized assessment report immediately.

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