Find the Right BMW i3 Battery for Your Replacement Costs
Is your BMW i3 showing signs of battery degradation? Are you facing range anxiety every time you plug in? You’re not alone. Thousands of BMW i3 owners worldwide are searching for affordable battery replacement solutions that don’t break the bank.
The good news? You don’t need to spend $12,000-$16,000 at the dealership. There’s a smarter way to restore your electric vehicle’s performance.
Why BMW i3 Battery Replacement Is More Affordable Than You Think
When your BMW i3 battery starts losing capacity, the first instinct is to visit the authorized dealer. But here’s what most owners discover: original factory batteries cost a fortune.
For a 2017 BMW i3, dealership quotes can reach €12,000 or more. That’s nearly the value of some used i3 models on the market!
CNS BATTERY offers a game-changing alternative. With brand-new CATL lithium cells, you get original-quality performance at 50% of the dealer price.
Understanding BMW i3 Battery Options: 45kWh, 50kWh, and 62kWh
Not all battery upgrades are created equal. Choosing the right capacity depends on your driving needs and budget.
45kWh Battery Module Kit
- New car range: Up to 300km on full charge
- Perfect for: Daily commuting and city driving
- Module specifications:
- Module A, B, C: 768×468×208mm, 65kg each
- Module D: 860×468×208mm, 72kg
- Complete pack with pallet: 110×100×60cm, 275kg
50kWh and 62kWh Upgrade Options
- Extended range: Ideal for long-distance travelers
- Enhanced performance: Better acceleration and highway capability
- Future-proof investment: Maximize your i3’s lifespan
Real Owner Experience: From 180km to 290km Range
Lisa K. from Berlin, Germany, faced the same dilemma. Her 2017 BMW i3 original battery had degraded significantly. The 4S dealership quoted €12,000 for replacement.
After choosing a 45kWh CNS BATTERY with brand-new CATL cells, her results were remarkable:
“The full charge range has increased from the original 180km to 290km. I only need to charge it once a week for daily commuting. The value for money is incredible!”
During installation, she encountered wiring connection problems. CNS customer service arranged remote video guidance within one hour, walking her through each step until the issue was resolved.
Key Benefits of Choosing CNS BATTERY for Your BMW i3
1. Brand-New CATL Battery Cells
Unlike refurbished batteries with aged cells, CNS uses 100% new ternary lithium cells from CATL, China’s largest battery manufacturer. This means:
- Superior safety and performance
- Longer cycle life than refurbished options
- Consistent capacity throughout the warranty period
2. Comprehensive Warranty Coverage
CNS provides a 2-year or 80,000km warranty (whichever comes first). Within this period:
- Original capacity indicator should not drop below 9 bars (out of 12)
- Free replacement or repair for manufacturing defects
- Coverage applies to both single modules and full battery packs
3. Easy Installation Process
- Complete battery pack: Plug-and-play installation
- Separate modules: Connect 6 power lines and 1 signal line
- Installation support: Detailed manuals, video tutorials, and remote technical assistance
4. Lifetime Technical Support
CNS stands behind every purchase with:
- Technical/installation/maintenance documents and videos
- Remote video calls with engineers
- Responsive customer service available Monday-Friday, 9:00 AM – 6:00 PM
5. Significant Cost Savings
| Option | Price Range | Warranty | Cell Quality |
|---|---|---|---|
| Original Factory | $12,000-$16,000 | Standard | OEM |
| Refurbished | $7,000-$10,000 | Limited (6 months-1 year) | Aged/Used |
| CNS BATTERY | $6,000-$8,500 | 2 years/80,000km | Brand-New CATL |
How to Get Started with Your BMW i3 Battery Replacement
Step 1: Free Compatibility Assessment
Upload your vehicle VIN or model year. CNS technicians will verify battery compatibility within 24 hours, ensuring perfect fitment for your specific i3 model.
Step 2: Personalized Consultation
Through online chat, phone, or email, professional consultants answer questions about:
- Battery specifications and range expectations
- Charging compatibility
- Installation requirements
Step 3: Transparent Pricing
Receive an instant quote including:
- Battery price
- Shipping costs (sea freight 4-8 weeks or express 3-8 days)
- Available discounts
Step 4: Order and Installation
- In-stock products: Ship within 1-3 working days
- Custom orders: Ship within 20 working days
- Packaging: Fumigation-free wood packaging for safe transport
Frequently Asked Questions About BMW i3 Battery Replacement
Q1: Are CNS battery cells brand new or refurbished?
CNS uses 100% brand-new ternary lithium cells, typically from CATL. No recycled or aged cells are used in any battery pack or module.
Q2: What happens if my battery fails under warranty?
Contact CNS immediately. Their after-sales engineers will assist with diagnostics. If covered under warranty, relevant accessories and parts are provided free of charge.
Q3: Can I install the battery myself?
Battery module installation requires technical skills and proper tools. If you’re not confident, purchasing a complete battery pack is recommended for simpler, lower-risk installation. CNS provides installation instructions, videos, wiring harnesses, and accessories for DIY customers.
Q4: How long does shipping take?
- Ocean shipping: 4-8 weeks to most destinations
- Express (DHL/FedEx/EMS): 3-8 business days
- Note: Shipping times may vary due to weather, customs, and other factors beyond control
Q5: What if I need urgent delivery?
Mark your email as “urgent” with your required delivery date. Customer service will contact you within 24 hours to prioritize your order.
Q6: Is there a return policy?
For non-quality issues, returns are not accepted. If you receive a defective product, contact CNS immediately. After confirming responsibility, they will negotiate replacement, exchange, or full refund (excluding shipping costs).
Q7: Will this affect my vehicle’s original warranty?
CNS performs VIN compatibility checks before purchase to confirm the upgrade won’t void existing warranties. Wiring connectors match original factory specifications with no modifications required.
Don’t Let Battery Degradation Limit Your Electric Driving Experience
Your BMW i3 was designed for efficient, enjoyable electric mobility. Don’t let a degraded battery force you into premature replacement or expensive dealership repairs.
With CNS BATTERY, you get:
- ✅ Brand-new CATL cells at 50% of dealer prices
- ✅ 2-year/80,000km warranty for peace of mind
- ✅ Lifetime technical support from experienced engineers
- ✅ Free VIN compatibility assessment before purchase
- ✅ Proven results from thousands of satisfied customers worldwide
Ready to Restore Your BMW i3’s Range?
Get your free custom quote today and discover how much you can save on your battery replacement.
👉 Contact CNS BATTERY Experts Now
Our technical team will respond within 3 working days with personalized recommendations based on your vehicle’s specific needs.
Don’t wait until your battery fails completely. Take control of your electric vehicle’s future today and enjoy 290km+ range with confidence!
© 2026 CNS BATTERY. All rights reserved. Prices and specifications subject to change. Warranty terms apply to original purchasers only.


