Essential Warranty for BMW i3 Battery Purchase – Must Read
Is Your BMW i3 Losing Range? Here’s What You Need to Know Before Buying a Replacement Battery
Does your BMW i3 barely make it through your daily commute? Are you watching the range indicator drop faster than ever before? You’re not alone. Thousands of BMW i3 owners face battery degradation after years of use, and the dealership quotes can be shocking – often exceeding $12,000 for a replacement.
But there’s good news. Understanding the warranty terms before you purchase can save you from costly mistakes and ensure your investment is protected. This guide reveals everything you need to know about BMW i3 battery warranties and why choosing the right supplier matters more than you think.
Why Warranty Coverage Matters for Your BMW i3 Battery Replacement
When investing in a replacement battery for your electric vehicle, the warranty isn’t just fine print – it’s your safety net. Many BMW i3 owners have learned this the hard way after purchasing batteries with inadequate coverage that left them stranded when issues arose.
The Hidden Risks of Poor Warranty Protection
- Refurbished batteries often come with minimal or no warranty coverage
- Unauthorized suppliers may void your protection if installation isn’t approved
- Short warranty periods leave you vulnerable to premature failures
- Non-transferable terms can affect resale value
A comprehensive warranty policy demonstrates the manufacturer’s confidence in their product quality. It’s one of the most reliable indicators of whether you’re making a smart purchase.
CNS BATTERY’s BMW i3 Warranty: What’s Actually Covered
At CNS BATTERY, we stand behind our products with industry-leading warranty coverage that gives you genuine peace of mind. Here’s exactly what you’re protected against:
Core Warranty Terms
| Coverage Aspect | Details |
|---|---|
| Warranty Period | 2 years or 80,000 kilometers (whichever comes first) |
| Coverage Start | From the delivery date |
| Applicable Products | Both single modules and complete battery packs |
| Capacity Guarantee | Original 12-bar capacity indicator should not drop below 9 bars after full charge within warranty period |
What Makes This Warranty Different?
Unlike many competitors, our 2-year/80,000km warranty exceeds standard industry offerings. Most original factory batteries provide shorter coverage periods, and refurbished options often come with virtually no protection.
Important Warranty Conditions:
- The warranty is non-transferable and applies only to the original purchaser
- Installation must follow CNS-provided operating instructions
- Opening battery packs without CNS permission voids the warranty
- Damages from improper installation are not covered
Real BMW i3 Owner Experience: Why Warranty Peace of Mind Matters
Lisa K. from Berlin, Germany, shared her experience after replacing her 2017 BMW i3 battery with a 45kWh unit from CNS BATTERY:
“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. The 2-year/80,000km warranty is reassuring, and customer service is responsive when I occasionally contact them with maintenance questions. Now, the full charge range has increased from the original 180km to 290km.”
Lisa’s story highlights three critical points:
- Dealership prices can be prohibitively expensive
- Quality aftermarket options exist at roughly 50% of OEM costs
- Responsive support makes all the difference when questions arise
Key Benefits of Choosing CNS BATTERY for Your BMW i3
Brand-New CATL Battery Cells
Every BMW i3 battery from CNS uses brand-new ternary lithium cells from CATL, China’s largest and most reputable battery manufacturer. This isn’t refurbished or recycled – you’re getting genuine new cells with optimal performance.
Significant Cost Savings
| Option | Typical Cost | Value Assessment |
|---|---|---|
| Original Factory Battery | $12,000+ | High brand premium |
| CNS BATTERY Replacement | ~$6,000-$8,000 | 50% savings with equal quality |
| Refurbished Battery | $8,000-$10,000 | Poor value, high risk |
Professional Installation Support
Whether you choose a complete battery pack (plug-and-play) or individual modules (requiring 6 power lines and 1 signal line connection), CNS provides:
- Detailed installation manuals
- Step-by-step video tutorials
- Remote video call support from engineers
- Lifetime technical support for all customers
Fast Response When You Need Help
If your CNS product fails during the warranty period, the company provides relevant accessories and parts free of charge. Their after-sales personnel and engineers assist with problem diagnosis and resolution as quickly as possible.
Understanding BMW i3 Battery Options: 45kWh, 50kWh, and 62kWh
CNS BATTERY offers multiple capacity options to match your driving needs:
45kWh Battery Module Kit
- Range: Approximately 300km on a full charge
- Best for: Daily commuting and city driving
- Package: Four modules (A, B, C, D) with varying dimensions
50kWh and 62kWh Options
- Extended range for longer trips
- Same warranty coverage across all capacity options
- Compatible with various BMW i3 model years
Pro Tip: Before ordering, upload your vehicle VIN for a free compatibility assessment. This ensures perfect matching and avoids installation issues.
Shipping and Delivery: What to Expect
Shipping Options
- Ocean shipping: 4-8 weeks to most destinations
- Express delivery (DHL/FedEx/EMS): 3-8 business days
- Packaging: Fumigation-free wood packaging for protection
Important Shipping Notes
- All orders require a valid physical address (no PO boxes)
- Address changes must be notified before order is marked “shipped”
- Inspect package contents before signing for delivery
- Shipping charges vary by location – contact sales for accurate quotes
Frequently Asked Questions About BMW i3 Battery Warranty
Q1: What happens if my battery capacity drops below the warranty threshold?
A: If the capacity indicator drops below 9 bars (from original 12 bars) within 2 years or 80,000km, CNS will provide free replacement or repair of the defective components.
Q2: Can I install the battery myself and still maintain warranty coverage?
A: Yes, provided you follow the CNS operating instructions exactly. The company provides detailed installation videos and manuals. However, if you lack technical confidence, purchasing the complete battery pack (plug-and-play) is recommended.
Q3: Is the warranty transferable if I sell my BMW i3?
A: No, the warranty is non-transferable and applies only to the original purchaser. This is standard practice for most aftermarket battery suppliers.
Q4: What technical support is available after purchase?
A: CNS provides lifetime technical support through:
- Technical/installation/maintenance documents and videos
- Remote video calls with engineers
- Email and phone support during business hours
Q5: How quickly will my order ship?
A: In-stock products ship within 1-3 working days. Customized or out-of-stock items (like battery modules or packs) typically ship within 20 working days, though busy periods may extend this timeline.
Q6: What if I need to cancel my order?
A: Orders can be cancelled within 24 hours for a full refund. After 24 hours, refund eligibility depends on order processing status. Orders cannot be cancelled after delivery.
Q7: Are the battery cells truly new, or refurbished?
A: CNS uses brand-new CATL ternary lithium cells – never refurbished or recycled. This ensures maximum lifespan and performance consistency.
Take Action: Protect Your BMW i3 Investment Today
Battery degradation doesn’t have to mean expensive dealership visits or premature vehicle replacement. With the right replacement battery and comprehensive warranty protection, you can restore your BMW i3’s range and reliability at a fraction of OEM costs.
Why Wait Any Longer?
- Save 50%+ compared to original factory prices
- 2-year/80,000km warranty for complete peace of mind
- Brand-new CATL cells for optimal performance
- Lifetime technical support from experienced engineers
- Free compatibility assessment before you buy
Get Your Free Custom Quote Now
Ready to restore your BMW i3’s performance? Contact CNS BATTERY’s expert team today for a personalized consultation and free custom quote. Our specialists will help you select the perfect battery solution for your specific model and driving needs.
Click Here to Contact CNS BATTERY
Or reach out directly:
- Email: info@cnsbattery.com
- WhatsApp: Available for instant consultation
- Business Hours: Monday-Friday, 9:00 AM – 6:00 PM
Don’t let battery degradation limit your electric driving experience. Take control today with a reliable, warrantied BMW i3 battery replacement from CNS BATTERY – where quality meets affordability.
Disclaimer: Warranty terms and product specifications are subject to change. Please verify current terms with CNS BATTERY before purchase. Installation should be performed by qualified technicians or following provided instructions carefully.


