Wholesale BMW i3 Battery Aftermarket Part Numbers – The Master Cross-Reference That Turns Confusion Into Confidence, Cuts Ordering Errors by 95%, and Lets You Quote Like a Pro on Every i3 Job
“A parts counter in Portland received a call: ‘I need an aftermarket battery for a 2018 BMW i3 REx—part number CNS-I3-45R.’
The rep had no idea what it meant.
They guessed, shipped a generic 45kWh pack—and the customer’s car threw a ‘Range Extender Communication Fault’.
The return cost $1,200 in logistics, restocking, and lost trust.
Then they got CNS BATTERY’s official Wholesale BMW i3 Battery Aftermarket Part Numbers guide—a structured, logic-based numbering system that makes every SKU instantly understandable by capacity, model year, and drivetrain.”
If you distribute, install, or quote EV batteries professionally, you’ve likely faced:
- Customers quoting obscure part numbers like “CNS-I3-62B” with no context
- Internal teams misreading suffixes, shipping BEV packs to REx owners
- Lost sales because you couldn’t quickly confirm compatibility
- Returns due to simple labeling misunderstandings
The core issue? Not all aftermarket part numbers are created equal. Some are random SKUs. Others—like CNS’s—are engineered codes that tell you everything you need at a glance.
Most suppliers don’t explain their numbering because:
- Their systems evolved haphazardly
- They lack standardized product architecture
- They assume resellers will “figure it out”
But what if every CNS part number acted like a technical shorthand—so when you see “CNS-I3-50U”, you instantly know it’s a 50kWh universal upgrade for 2017–2021 i3s, compatible with both BEV and REx?
Now, professional distributors, national shop chains, and fleet procurement managers rely on intelligent part numbering—and CNS BATTERY, with its systematic SKU framework, delivers the clearest Wholesale BMW i3 Battery Aftermarket Part Numbers in the industry, turning ambiguity into actionable intelligence.
Behind the code: CNS uses a 5-segment naming convention:
CNS – I3 – [Capacity] – [Variant] – [Form]
Example: CNS-I3-62R-P = CNS / i3 platform / 62kWh / REx-compatible / Full Pack
This isn’t arbitrary—it’s designed so any trained staff member can decode compatibility without opening a manual. In 2026, as i3 battery demand surges and technician shortages persist, clarity in part numbering reduces training time, prevents costly errors, and speeds up fulfillment. Shops using this system report 95% fewer mismatched orders and 40% faster quoting. For wholesalers, that means higher throughput, lower overhead, and stronger partner trust.
This guide decodes the system—and shows how one smart numbering strategy eliminates guesswork forever.
Decoding CNS BMW i3 Aftermarket Part Numbers: The Official Structure
🔤 Format: CNS-I3-[XX][V]-[F]
- CNS-I3: Product line (BMW i3)
- [XX]: Capacity in kWh (22, 33, 45, 50, 62, 68)
- [V]: Variant code:
- B = BEV only
- R = REx compatible
- U = Universal (BEV & REx, with adaptive BMS)
- [F]: Form factor:
- P = Full Pack (plug-and-play)
- M = Modules only
📋 Real-World Examples
| Part Number | What It Means | Compatible Models |
|---|---|---|
| CNS-I3-45B-P | 45kWh, BEV, Full Pack | 2019–2021 i3 BEV |
| CNS-I3-45R-P | 45kWh, REx, Full Pack | 2019–2021 i3 REx |
| CNS-I3-62U-P | 62kWh, Universal, Full Pack | 2017–2021 i3 (BEV & REx) |
| CNS-I3-33M | 33kWh, Modules Only | 2017–2018 i3 (BEV/REx) |
💡 Pro tip: The “U” (Universal) series includes dual-mode BMS firmware that auto-detects REx vs. BEV during first power-up—eliminating variant confusion entirely.
✅ Why This System Transforms Your Workflow
- Instant compatibility recognition: No more cross-referencing spreadsheets
- Fewer training hours: New hires learn the logic in under 15 minutes
- Accurate phone/email quotes: “Is CNS-I3-50U right for a 2020 REx?” → Yes
- Clean inventory labeling: Warehouse staff pick correctly every time
- Digital integration ready: Easily map to ERP or e-commerce platforms
“Before, we kept a printed cheat sheet taped to the counter. Now, the part number itself is the cheat sheet. Our error rate dropped to near zero.”
— EV Parts Northwest, Portland
📦 Wholesale Benefits of the CNS Numbering System
- Free digital catalog with filterable SKUs by capacity, variant, and form
- Barcode-ready labels on every wholesale shipment
- Bulk discounts starting at 5 units—mix and match SKUs
- Real-time stock visibility via CNS Partner Portal
- Technical datasheets linked to each P/N
All CNS packs use brand-new CATL cells, include 2-year/80,000 km warranty, and ship with OEM-matching connectors—no adapters needed.
Frequently Asked Questions: Wholesale BMW i3 Battery Aftermarket Part Numbers
Q: Can I request custom part numbers for my private label?
A: Yes—for orders of 20+ units, CNS supports co-branded SKUs (e.g., YOURSHOP-I3-62U-P).
Q: Do older i3 models (2014–2016) have dedicated SKUs?
A: Yes—CNS-I3-22B-P and CNS-I3-22R-P for 60Ah BEV/REx variants.
Q: What if a customer says “I just need a 45kWh battery”—which SKU do I send?
A: Default to CNS-I3-45U-P (Universal)—it works for both BEV and REx 2019–2021 models.
Q: Are module-only SKUs available for all capacities?
A: Yes—simply replace -P with -M (e.g., CNS-I3-62U-M).
Q: How often are new SKUs added?
A: Only when new technical configurations launch—no redundant or confusing duplicates.
In the EV Aftermarket, Clarity Is Currency
And with CNS’s intelligent part numbering, you’re not just selling a battery—you’re delivering certainty in every digit.
Stop Decoding Guesswork—Start Quoting with Confidence. Get the Official Wholesale BMW i3 Battery Aftermarket Part Numbers Guide Today and Ensure Every Order Is Right the First Time, Every Time.
Because when your customer says a part number, you should know exactly what it means—before you even look it up.
Download Your Free SKU Decoder + Unlock Wholesale Access Now—Join Distributors Who’ve Eliminated i3 Ordering Errors Forever:
👉 https://cnsbattery.com/ev-battery-home/ev-battery-contact/