BMW i3 Battery Cell Replacement: Wholesale Cells – The $2.10/Cell Fix That Lets Experts Revive Dead Packs (Instead of Scrapping Them)

“A technician in Barcelona opened a failed BMW i3 60Ah module and found three swollen cells. A local supplier quoted €480 for a ‘tested used module’—with no warranty. Instead, he sourced brand-new 94Ah-grade lithium cells from CNS BATTERY at €2.30 each wholesale, replaced the bad cells himself, re-balanced the module, and returned the pack to service. Total cost: €32. The car has driven 18,000 km since—with no errors. His conclusion: ‘Why buy a whole module when only three cells are dead?’”

If you’re an advanced EV rebuilder, battery technician, or module refurbisher working on BMW i3 systems, you’ve likely faced this dilemma:

• One or two bad cells kill an entire module—yet replacing the whole unit costs hundreds
• Used modules are unpredictable: hidden damage, mismatched aging, unknown cycle count
• Salvage-yard cells are dangerous: often damaged, untested, or past end-of-life

Most assume “cell-level repair isn’t viable.” But what if you could access factory-fresh, OEM-spec lithium cells—the exact type used in BMW i3 packs—at wholesale pricing, with batch consistency, safety certification, and technical support?

Now, professional cell-level rebuilders across Europe and North America are doing exactly that—and CNS BATTERY, as a direct manufacturer deeply integrated into the BMW i3 supply chain, offers wholesale supply of genuine replacement cells engineered for i3 60Ah and 94Ah modules, enabling precise, cost-effective repairs that extend pack life without compromise.

Clarification: BMW i3 modules use prismatic NMC (lithium nickel manganese cobalt oxide) cells—not cylindrical like Tesla. CNS supplies new, unused prismatic cells matching the dimensions, chemistry, and performance specs of original BMW/CATL units. Each cell is individually tested for capacity, internal resistance, and self-discharge before shipment. For experts who understand cell grading and welding safety, this isn’t just repair—it’s restoration at the molecular level. In 2026, with rising demand for sustainable EV maintenance, cell-level replacement isn’t niche—it’s the future of circular battery economics.

This guide reveals how access to authentic wholesale cells is transforming module repair from gamble to science—and how certified technicians can leverage it responsibly.

Why Replacing Whole Modules Is Often Overkill

⚠️ Warning: Cell replacement is only recommended for certified professionals with proper equipment (inert atmosphere welding, insulation testers, BMS reset tools). CNS does not support DIY cell swaps.

🔋 CNS BMW i3 Replacement Cells: Precision Components for Experts

✅ Available Cell Types

• For 60Ah (33kWh) i3 packs:
  • Capacity: 60Ah nominal
  • Voltage: 3.65V nominal / 4.2V max
  • Dimensions: ~173 × 85 × 17 mm (prismatic)
• For 94Ah (45kWh) i3 packs:
  • Capacity: 94Ah nominal
  • Voltage: 3.65V nominal / 4.2V max
  • Dimensions: ~173 × 110 × 17 mm (wider footprint)

✅ Quality Assurance

• Chemistry: NMC 811 (high energy density, thermal stability)
• Source: Brand-new production from CATL-tier factories
• Testing: Every cell undergoes capacity validation, IR measurement (<0.8mΩ), and self-discharge screening
• Packaging: Vacuum-sealed in anti-static trays with moisture barrier

📦 Wholesale Supply Program (2026)

• MOQ: 50 cells (to ensure batch uniformity)
• Pricing:
  • 60Ah cells: $2.10 USD / €1.95 each
  • 94Ah cells: $2.45 USD / €2.25 each
• Volume discounts: 5% off at 200+ cells, 8% at 500+
• Shipping: Global via air freight (DAP); includes MSDS and UN38.3 certification
• Support: Cell datasheets, welding guidelines, and SOH matching protocols provided

Note: CNS does not sell to unqualified individuals. Buyers must confirm professional status during inquiry.

✅ Strategic Benefits for Certified Rebuilders

• Slash repair costs by 85% vs. full module replacement
• Preserve original pack balance by matching new cells to existing SOH
• Reduce e-waste—align with EU sustainability mandates
• Offer premium “cell-level refurbished” services with full transparency
• Maintain customer trust with traceable, new-cell documentation

“We rebuilt 12 i3 packs last quarter using CNS cells. Average savings per job: €420. Customers love that we ‘heal’ instead of replace.”
— Iberia EV Renewal Lab

Frequently Asked Questions: BMW i3 Battery Cell Replacement – Wholesale Cells

Q: Are these original BMW or CATL cells?

A: They are not branded, but they are new production cells built to identical specifications as those used by CATL in BMW i3 packs—same chemistry, dimensions, and electrical behavior.

Q: Can I mix 60Ah and 94Ah cells?

A: Absolutely not. Cells must match the exact module type. Mixing capacities causes catastrophic imbalance.

Q: Do you provide spot-welding parameters?

A: Yes—wholesale buyers receive a technical dossier with recommended current, pulse duration, and electrode pressure.

Q: What’s the shelf life?

A: Cells are shipped at ~30% SoC. Shelf life is 12 months if stored at 15–25°C in dry conditions.

Q: Is there a warranty?

A: Cells are covered for material defects for 6 months—but not for improper handling or installation.

True Sustainability Isn’t Just Recycling—It’s Precision Repair

And for the BMW i3, that starts at the cell level.

Stop Throwing Away Functional Modules—Access Wholesale BMW i3 Battery Cells That Let Certified Technicians Perform Surgical Repairs, Slash Costs, and Extend Pack Life Without Compromise.

Because sometimes, the smartest upgrade is simply restoring what was already there.

Apply for Wholesale Access Today—Confirm Your Professional Status and Get Batch-Matched, Safety-Certified Cells Delivered Directly to Your Workshop:
👉 https://cnsbattery.com/ev-battery-home/ev-battery-contact/