Nissan Leaf e+ Battery Replacement Services: Expert Solutions for 2026
Is your Nissan Leaf e+ (2019-2022) suffering from reduced range, slower charging, or battery degradation after years of use? The Leaf e+’s signature 62kWh NCM battery delivers impressive 239-mile WLTP range, but like all EV batteries, it loses capacity over time—especially if the liquid cooling system is neglected. Many Leaf e+ owners struggle to find reliable Nissan Leaf e+ battery replacement services, as generic providers lack expertise in its advanced thermal management and high-voltage architecture. At CNS BATTERY, we specialize in Leaf e+ battery replacements, combining 2026’s latest battery technology with factory-aligned service protocols. This guide breaks down our tailored services, safety standards, and why we’re the trusted choice for reviving your Leaf e+.
Why Leaf e+ Battery Replacement Requires Specialized Service
The Nissan Leaf e+ isn’t just a upgraded Leaf—it features a unique 62kWh battery pack with a sophisticated liquid cooling system, setting it apart from standard 40kWh Leaf models. This complexity demands specialized knowledge to avoid costly mistakes.
Unlike the passive air cooling in older Leafs, the Leaf e+’s liquid cooling loop regulates battery temperature between 25-35℃, critical for preserving NCM cell life. Four out of ten Leaf e+ battery failures stem from cooling system issues—such as degraded coolant, clogged radiators, or faulty pumps—rather than cell degradation alone. Additionally, the e+’s 360V high-voltage system and advanced BMS require Nissan-specific calibration tools, which generic service providers often lack. Our specialized services address these nuances, ensuring your replacement battery performs like new.
CNS BATTERY’s Nissan Leaf e+ Battery Replacement Service Process
Our end-to-end service is tailored to the Leaf e+’s unique needs, combining safety, precision, and transparency. Every step adheres to ISO 6469-3 EV safety standards and Nissan’s technical guidelines.
1. Comprehensive Pre-Service Inspection
We start with a thorough diagnostic to identify root causes of battery issues. Our technicians use professional-grade scanners to check BMS data, cell voltage balance, and cooling system performance. We test coolant condition—recommending replacement if it’s degraded (per Nissan’s 4-5 year interval) to prevent future battery damage. We also inspect high-voltage connectors for corrosion and wiring harnesses for wear, addressing any issues before battery replacement to avoid post-service failures.
2. Safe Battery Removal & Disposal
Safety is paramount in high-voltage battery service. Our certified technicians wear Class 00 insulated gloves (1,000V+ rating) and use non-conductive tools. We disconnect the 12V battery, remove the high-voltage service plug, and wait 15 minutes to discharge capacitors—eliminating residual voltage risks. The 62kWh pack (518 lbs) is removed with a rated trolley, and old batteries are sent to certified recyclers, where 95% of materials (lithium, nickel, manganese) are recovered for reuse.
3. Premium Battery Installation & Calibration
We install our 62kWh sodium-lithium hybrid battery—engineered exclusively for Leaf e+ models. This pack matches OEM energy density while offering 30% better cold-weather performance (-20℃ capacity retention of 88% vs. OEM’s 85%). We refill the cooling system with Nissan-approved coolant, bleed air using a vacuum filler, and torque all connections to factory specs (45 Nm for pack bolts, 15 Nm for cooling lines).
Critical BMS calibration follows, using Nissan-specific tools to sync the new battery with the e+’s电控系统. This ensures accurate range readouts, optimal charging speeds (30%-80% in 22 minutes via CHAdeMO), and balanced cell performance—avoiding overcharging or undercharging.
4. Post-Service Testing & Validation
We conduct rigorous tests to confirm performance and safety. We check voltage balance (cell variance ≤0.05V), test Level 2 and fast charging, and monitor battery temperature during a test drive. We also provide a detailed service report, including before/after battery health data, so you can verify the results. Our service includes a complimentary 30-day follow-up inspection to address any concerns.
Why Choose CNS BATTERY for Leaf e+ Replacement Services
Our Leaf e+ services stand out from generic providers, delivering long-term value and peace of mind.
Leaf e+-Specific Expertise
We don’t offer one-size-fits-all services—our technicians undergo specialized training in Leaf e+ architecture, focusing on its liquid cooling system and advanced BMS. This expertise eliminates compatibility issues common with generic batteries and ensures your replacement meets the e+’s performance standards.
Cost-Effective Premium Solutions
OEM Leaf e+ battery replacement costs $14,000-$15,500, while our service (battery + installation + cooling system maintenance) is $8,495—40% cheaper. Our sodium-lithium hybrid battery also lasts 2,000+ charge cycles (5-7 years), matching OEM lifespan with better durability in extreme temperatures.
Transparent Warranty & Support
Every Leaf e+ battery replacement includes a 3-year/50,000-mile warranty, covering defects, thermal issues, and capacity fade (below 80%). We also offer nationwide technical support, and our service preserves your Leaf’s non-battery warranty by providing detailed records to Nissan.
Benefits of Professional Leaf e+ Battery Replacement
A quality replacement service revitalizes your Leaf e+, delivering tangible benefits that justify the investment.
Restored Range & Performance
Say goodbye to range anxiety. Our replacement battery restores the e+’s 239-mile WLTP range, letting you tackle long trips without frequent charging stops. Fast-charging performance is fully restored, ensuring quick top-ups on the go.
Extended Vehicle Lifespan
The Leaf e+’s chassis and motor are built to last 150,000+ miles—replacing the battery extends its usable life by 5-7 years. This avoids the $30,000+ cost of a new EV and maximizes your original investment.
Enhanced Safety & Reliability
Neglected battery degradation increases thermal runaway risks. Our service addresses cooling system issues and replaces worn components, ensuring your Leaf e+ remains safe to drive. Proper BMS calibration also prevents electrical faults that can leave you stranded.
Frequently Asked Questions (FAQ) About Leaf e+ Battery Replacement
Will replacement void my Leaf e+’s warranty?
No. Our certified service and battery preserve your Leaf’s non-battery warranty (motor, controller, etc.). We provide detailed service records to Nissan, ensuring warranty coverage remains intact for all unaffected components.
How long does the replacement service take?
Our standard service takes 4-6 hours, with most vehicles ready the same day. If cooling system repairs or additional maintenance are needed, we’ll provide a clear timeline upfront—no unexpected delays.
Is your battery compatible with the Leaf e+’s fast charging?
Yes. Our battery is engineered to match the Leaf e+’s CHAdeMO fast-charging profile, supporting 50kW charging speeds. BMS calibration ensures safe fast charging without overheating or cell damage.
Do I need to replace the coolant during battery service?
We recommend it if your coolant is older than 4-5 years. Degraded coolant reduces cooling efficiency, accelerating new battery degradation. Our service includes coolant replacement at a discounted rate when bundled with battery replacement.
Trust CNS BATTERY for Your Nissan Leaf e+ Battery Replacement
Don’t settle for generic services that risk your Leaf e+’s performance and safety. CNS BATTERY’s specialized Nissan Leaf e+ battery replacement services combine expertise, premium components, and transparent pricing to revive your EV. Whether your e+ is out of warranty or suffering from capacity loss, we have the solution to get you back on the road with confidence. 立即访问https://cnsbattery.com/nissan-leaf-battery/，获取独家折扣并咨询专家升级方案！ Our team will schedule your pre-service inspection and tailor a replacement plan to your Leaf e+’s needs.