21700 Cylindrical NCA/NCM Battery for Tesla Model 3 (2018 - Present, Rear-Wheel Drive) OE#1666968-99-C / -D
Specifications
Details
Product description
Product Overview
This is a genuine 21700 cylindrical lithium-ion battery (NCA/NCM chemistry) designed exclusively for Tesla Model 3 (2018–Present), matching OE numbers 1666968-99-C / -D. Manufactured to Tesla’s OEM standards, it delivers high energy density, reliable performance, and seamless compatibility with Model 3’s battery management system (BMS). Ideal for replacement, repair, and aftermarket EV battery solutions, it ensures consistent power output, extended driving range, and long-term durability for electric vehicle applications.
Key Features
- OEM Compatibility: Direct replacement for Tesla Model 3 (2018–Present), OE#1666968-99-C / -D, perfect fit and function.
- High Energy Density: NCA/NCM chemistry with ~260–300 Wh/kg, boosting range vs. 18650 cells .
- 21700 Cylindrical Format: Ø21mm × 70mm, optimized for EV pack assembly, lower cell count per pack.
- Superior Thermal Management: Reduced internal resistance, enhanced heat dissipation for safety and longevity.
- Fast Charging Support: Enables high-rate charging with minimal degradation.
- Long Cycle Life: Stable performance over hundreds of charge-discharge cycles .
- BMS Compatibility: Works seamlessly with Tesla’s battery management system .
Specifications
- Cell Type: 21700 Cylindrical Li-ion (NCA/NCM)
- Nominal Voltage: 3.6–3.7V
- Full Charge Voltage: 4.2V
- Nominal Capacity: 4800–5000mAh
- Energy Density: ~260–300 Wh/kg
- Dimensions: Ø21mm × 70mm
- Weight: ~67–69.5g
- Internal Resistance: 12–16 mΩ
- Continuous Discharge: Up to 15A
- Chemistry: NCA (Panasonic) / NCM (LG Energy Solution)
- Fitment: Tesla Model 3 (2018–Present)
- OE Number: 1666968-99-C / 1666968-99-D
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FAQ
Frequently Asked Questions
▸ What is the nominal capacity and voltage of the cell?
The cell delivers its rated capacity at 3.2V nominal (charge to 3.65V, discharge to 2.5V). Capacity is measured at 0.5C discharge rate after standard formation cycles. Internal resistance is below 0.25 milliohm for prismatic cells.
▸ Can these cells be used in series and parallel configurations?
Yes. Cells can be configured in series (1S to 16S typical packs) and parallel (1P to 4P) for 12V, 24V, 48V, and high-voltage 400V/800V systems. Cell matching within 2% capacity and 0.5 milliohm internal resistance ensures balanced packs.
▸ What cycle life can I expect?
LIANLI LFP cells deliver 6000+ cycles at 80% DoD, 4000+ cycles at 90% DoD, and 2000+ cycles at 100% DoD. Capacity retention remains above 80% throughout the rated cycle life when operated within specified charge/discharge rates and temperature ranges.
▸ What certifications apply to these cells?
All LIANLI LFP cells carry UN38.3, IEC62619, UL1973, CE, GB/T 36276, and MSDS certifications. Cells are manufactured in ISO9001/14001 facilities with automated electrode coating, stacking, and electrolyte filling under dry room conditions (Dew point below -40C).
▸ Do you ship internationally and what are minimum order quantities?
Yes. Sample orders accepted from 4 pieces for evaluation. Bulk orders ship via sea freight in custom wooden cases with anti-static and shock-proof packaging. DDP terms available for major destinations. Air freight available for urgent orders up to 500kg.
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