BMW i3 Battery Module Wholesale: 60Ah/94Ah/120Ah – How a German Workshop Cut Repair Costs by 70% (While Doubling Customer Satisfaction)
“AutoElektro Berlin specialized in BMW i3 repairs—but kept losing money on battery jobs. Replacing full packs was too expensive for customers; used modules failed within months. Then they discovered CNS BATTERY’s wholesale module program: brand-new 60Ah, 94Ah, and 120Ah modules built with fresh CATL cells, matched to OEM voltage curves, and priced 60% below dealer equivalents. They started offering targeted module replacement instead of full-pack swaps. One customer’s 2017 i3 had only two weak modules—replacing just those cost €3,200 vs. €11,000 for a new pack. The car regained 92% State of Health, passed TÜV inspection, and the owner left a 5-star review. Within a year, module-based repairs became 68% of their EV revenue—with margins over 65%. Their secret? ‘We don’t sell batteries. We sell precision fixes.’”
If you’re an EV repair shop, fleet maintainer, or parts distributor, you’ve likely faced this reality:
- Full battery pack replacements are often unnecessary—only 1–3 modules degrade prematurely
- Used or salvaged modules lack consistency, causing imbalance, BMS errors, and rapid re-failure
- And most “wholesale” suppliers offer untested, mismatched, or recycled cells labeled as “new”
But here’s what top-tier technicians now leverage—and CNS BATTERY delivers:
**True wholesale access to brand-new, capacity-matched BMW i3 battery modules in 60Ah (22kWh-era compatible), 94Ah (33kWh), and 120Ah (45kWh+) configurations—all built with fresh CATL NMC cells, pre-balanced, and validated for seamless integration into existing packs. Unlike generic alternatives, every CNS module undergoes individual capacity testing, internal resistance screening, and BMS handshake verification before shipment. For professionals, this means precise, cost-effective repairs that last—not temporary patches. In 2026, smart module replacement isn’t just economical—it’s the gold standard for sustainable EV service.
This guide reveals how technical shops are transforming BMW i3 battery economics—one module at a time.
Not All Modules Are Created Equal—Capacity, Chemistry, and Calibration Matter
| Module Type | Typical Use Case | CNS Cell Origin | Matching Precision |
|---|---|---|---|
| 60Ah | Early i3 (2014–2016, 60Ah/22kWh packs) | New CATL NMC | ±1% capacity, ±2mΩ IR |
| 94Ah | Mid-life i3 (2017–2018, 94Ah/33kWh) | New CATL NMC | ±1% capacity, ±2mΩ IR |
| 120Ah | Later i3 (2019–2021, 120Ah/42–45kWh) | New CATL NMC | ±1% capacity, ±2mΩ IR |
⚠️ Critical note: Mixing old and new modules without precise matching causes accelerated degradation—often within weeks.
🔧 Why CNS Modules Enable True Professional-Grade Repairs
✅ Factory-Fresh Cells, Not Recycled
- Every module uses brand-new CATL NMC prismatic cells—never pulled from donor packs
- Full cycle life: 2,000+ cycles to 80% SoH
✅ Precision-Matched for Seamless Integration
- Modules are grouped by capacity and internal resistance before shipping
- Includes pre-programmed BMS metadata for smoother communication
✅ Wholesale Pricing That Rewards Technical Expertise
- Volume discounts start at 2 modules
- Ideal for shops performing 1–2 repairs per month
- No MOQ—order exactly what the job requires
✅ Complete Technical Support
- Wiring harnesses, torque specs, and balancing procedures included
- Remote video support during installation if needed
“We used to avoid partial replacements. Now we diagnose at the module level. Last quarter, we saved customers an average of $8,400 per job. CNS modules just work—they integrate like OEM.”
— EV Specialist Garage, Munich
✅ Real-World Benefits of Module-Level Wholesale Sourcing
- Reduce customer cost by 50–70% vs. full-pack replacement
- Minimize vehicle downtime—no waiting for full-pack production
- Extend pack life by replacing only degraded sections
- Offer tiered solutions: e.g., “Budget” (2 modules), “Premium” (full pack)
CNS module specs:
- 60Ah: ~22.8V nominal, 65kg
- 94Ah: ~35.6V nominal, 68kg
- 120Ah: ~45.6V nominal, 72kg
All include HV connectors, temp sensors, and CAN lines pre-installed
Frequently Asked Questions: BMW i3 Battery Module Wholesale
Q: Can I mix CNS modules with original BMW modules?
A: Yes—if your pack has ≥80% State of Health and you replace only the weakest 1–2 modules. CNS provides matching guidance based on your diagnostic data.
Q: Do you sell individual cells?
A: No—only complete, tested modules for safety and performance integrity.
Q: What’s the warranty on modules?
A: 2 years or 80,000 km—same as full packs. Covers capacity loss, BMS faults, and manufacturing defects.
Q: How do I know which Ah rating my i3 needs?
A: Provide your VIN or original pack label—CNS will confirm compatibility. Generally:
- 60Ah = 22kWh packs
- 94Ah = 33kWh packs
- 120Ah = 45kWh+ packs
Q: Is technical documentation included?
A: Yes—installation manuals, module layout diagrams, and balancing protocols are provided with every order.
Precision Isn’t Optional—It’s What Separates Repairs from Regrets
And with CNS, it’s finally accessible at scale.
Stop Settling for Full-Pack Replacements or Risky Used Modules—Start Offering Targeted, Cost-Smart BMW i3 Battery Repairs with Brand-New, Precision-Matched 60Ah, 94Ah, and 120Ah Modules from CNS. Deliver OEM-Level Reliability at Half the Price.
Because your customers deserve better than “all or nothing.”
Get Your Custom Module Quote Today—Including Compatibility Confirmation, Pricing, and Technical Support for Your Next BMW i3 Repair:
👉 https://cnsbattery.com/ev-battery-home/ev-battery-contact/