BMW i3 Battery 45kWh Module: Bulk Supply – How Repair Networks Are Cutting Downtime by Stocking Certified Replacement Modules (Not Waiting for Full Packs)
“A multi-shop EV service group in France faced a recurring problem:
When a 2017–2018 BMW i3 arrived with a failed module, they had two bad options—
Option 1: Order a full 45kWh pack ($7,200), replace it, and scrap three good modules.
Option 2: Wait 3–4 weeks for a ‘refurbished’ module from an unknown supplier—only to have it fail diagnostics due to cell mismatch.
Then they started sourcing BMW i3 Battery 45kWh Module: Bulk Supply directly from CNS BATTERY.
Now, they keep 12 pre-tested modules in inventory. Repairs take under 4 hours, use only what’s needed, and cost 60% less than full-pack swaps.
Customer satisfaction? Up 31%.”
If you manage a repair chain, fleet maintenance operation, or battery rebuild facility, you know that time is money—and waste is profit lost.
Yet most suppliers force you into inefficient choices:
- Full-pack replacements for single-module failures
- Unreliable used modules with hidden degradation
- Long lead times that strand vehicles for weeks
The smarter solution? Stock genuine-grade, plug-and-play 45kWh modules—ready to deploy the moment a fault is diagnosed.
CNS BATTERY now offers bulk supply of BMW i3 45kWh battery modules, engineered to exact OEM specifications and built with brand-new CATL NMC cells. Each module is individually tested, balanced, and certified—so you can replace only what’s broken, without compromising safety or performance.
Our BMW i3 Battery 45kWh Module: Bulk Supply includes:
- 🔋 True 45kWh system compatibility: Designed for 2017–2018 i3 models (96S4P architecture)
- 🧪 100% new CATL NMC cells: No recycled, no reclaimed—just consistent, long-life chemistry
- ⚙️ Factory-matched BMS communication: Seamless integration with remaining OEM modules—no error codes, no reprogramming
- 📦 Ready-to-install units: Includes all sensors, contactors, and harnesses—plug-and-play in under 2 hours
- 🛡️ 24-month / 80,000 km warranty: Same coverage as full packs—because reliability shouldn’t depend on quantity
These aren’t salvaged parts. They’re production-line modules—the same ones used in our complete battery packs sold globally.
The Economics of Modular Repair vs. Full Replacement
| Scenario | Full 45kWh Pack Swap | Single Module Replacement (CNS) |
|---|---|---|
| Part Cost | $7,200 | $1,650 |
| Labor Time | 3–4 hours | 1.5–2 hours |
| Good Modules Wasted | 3 | 0 |
| Vehicle Downtime | 2–3 weeks (if ordered) | Same day (if stocked) |
| Customer Perception | “Expensive fix” | “Smart, precise repair” |
“We reduced our average i3 battery job cost by 58% just by switching to modular repairs with CNS. Now we recommend it as a standard service.”
— AutoVert Workshop Group, Lyon
Built for High-Volume Operations
- Bulk pricing tiers: Save up to 22% on orders of 20+ modules
- Batch consistency: All modules from the same production run = perfect voltage/IR matching
- Global logistics: Fumigation-free wooden crates, UN38.3 certified, shipped via sea or air
- Technical backup: Remote support for installation, balancing, or diagnostics
Whether you’re servicing 5 cars a month or 50, having modules on hand transforms your workflow from reactive to proactive.
Frequently Asked Questions: BMW i3 Battery 45kWh Module – Bulk Supply
Q: Can I mix CNS modules with original BMW modules?
A: Yes—our modules are voltage, impedance, and BMS-profile matched to OEM units. Thousands of hybrid packs confirm seamless operation.
Q: Do I need special tools to install?
A: Only standard workshop tools. We provide wiring diagrams, torque specs, and video guides with every bulk order.
Q: What’s included in the module?
A: Complete assembly: cells, busbars, temperature sensors, voltage taps, service disconnect, and CAN communication board.
Q: Is there a minimum order?
A: 5 modules for bulk pricing. Ideal for shops building initial inventory.
Q: How do I verify authenticity?
A: Each module has a unique serial number, traceable to its test report and cell batch—available on request.
In Modern EV Service, Precision Isn’t Optional—It’s Profitable
And with CNS bulk-supplied 45kWh modules, you deliver both.
Stop Throwing Away Good Modules—Equip Your Team with Factory-Quality, Plug-and-Play BMW i3 45kWh Replacement Units, Available in Bulk with Volume Discounts, Full Warranty, and Global Shipping.
Because the future of EV repair isn’t about replacing everything—it’s about fixing exactly what’s broken.
Launch Your Modular Repair Program Today—Request Bulk Pricing, Inventory Recommendations, and Technical Integration Support:
👉 https://cnsbattery.com/ev-battery-home/ev-battery-contact/