21700 Cylindrical NCA/NCM Battery for Tesla Model Y （2021 - Present）OE#1666969-00-C / -D /1666968-99-C
Specifications
Details
Product description
Product Overview
This is a high-performance 21700 cylindrical lithium-ion battery (NCA/NCM chemistry) designed as an original equipment replacement for Tesla Model Y (2021–Present). It matches OE numbers 1666969-00-C, 1666969-00-D, and 1666968-99-C, delivering OEM-grade energy density, reliability, and compatibility for electric vehicle powertrain applications. Built for long-range EV use, it supports fast charging, stable discharge, and extended cycle life, ideal for wholesale, repair, and aftermarket B2B supply chains.
Key Features
- OEM-compatible 21700 cylindrical format (21mm × 70mm) for Tesla Model Y 2021+
- NCA/NCM cathode chemistry for high energy density (≈280–300 Wh/kg) and long driving range
- Direct replacement for OE# 1666969-00-C / -D / 1666968-99-C, perfect fit and function
- High discharge capability (up to 15A continuous) and fast-charging support
- Robust safety design with thermal stability and low self-discharge
- Long cycle life (≥1000 cycles) for durable EV performance
- Liquid cooling system compatibility for consistent operation
Specifications
- Cell Type: 21700 Cylindrical Lithium-Ion (NCA/NCM)
- Nominal Voltage: 3.6V–3.7V
- Nominal Capacity: 4800–5300 mAh (typical 5000 mAh)
- Dimensions: Φ21mm × 70mm
- Weight: ≈68–70g
- Energy Density: ≈280–300 Wh/kg
- Max Continuous Discharge: 15A
- Charge Voltage: 4.2V
- Cut-off Voltage: 2.5V
- Cycle Life: ≥1000 cycles (80% capacity retention)
- Operating Temp: -20°C to 60°C
- Applications: Tesla Model Y (2021–Present), EV powertrain, battery pack replacement
- OE Numbers: 1666969-00-C, 1666969-00-D, 1666968-99-C
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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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