21700 Cylindrical NCA/NCM Battery for Tesla Model Y(2021-2026)OE#1666969-00-C
Specifications
Description
<p>Product Overview</p><p>This 21700 cylindrical NCA/NCM ternary lithium-ion battery cell is a direct OEM replacement, specially engineered for Tesla Model Y (2021-2026) with exclusive OE part number 1666969-00-C. Adopting original NCA/NCM composite cathode chemistry consistent with Tesla factory 21700 cell specifications, it delivers superior energy density, stable high-current discharge performance and excellent single-cell consistency. It perfectly adapts to original battery module structure, vehicle BMS system and proprietary liquid cooling thermal management system. Widely applied for Tesla Model Y battery pack repair, module refurbishment, capacity restoration and aftermarket replacement, complying with automotive-grade reliability standards and global B2B wholesale demands.</p><p>Key Features</p><p>Exact OEM replacement with OE part number 1666969-00-C, fully compatible with Tesla Model Y (2021-2026) original 21700 battery packs.</p><p>Standard 21700 cylindrical dimension (21mm diameter × 70mm height), premium NCA/NCM ternary cathode material system.</p><p>Ultra-high energy density, stable power output supporting vehicle driving range and dynamic acceleration performance.</p><p>Low internal resistance, ultra-low self-discharge rate and reliable long cycle life.</p><p>Perfect matching with Tesla liquid cooling system and original BMS to ensure safe high-power operation.</p><p>Excellent single-cell uniformity, suitable for series-parallel assembly of large EV battery modules.</p><p>No memory effect, supports random shallow charge and discharge to extend overall battery pack service life.</p><p>Strict full-process quality control, stable performance and durable for long-term automotive aftermarket application.</p><p>Specifications</p><p>Battery Type: 21700 Cylindrical NCA/NCM Ternary Lithium Battery Cell</p><p>OE Part Number: 1666969-00-C</p><p>Compatible Vehicle: Tesla Model Y (2021, 2022, 2023, 2024, 2025, 2026)</p><p>Nominal Voltage: 3.7V</p><p>Nominal Capaci
Products Description
Product Overview
This 21700 cylindrical NCA/NCM ternary lithium-ion battery cell is a direct OEM replacement, specially engineered for Tesla Model Y (2021-2026) with exclusive OE part number 1666969-00-C. Adopting original NCA/NCM composite cathode chemistry consistent with Tesla factory 21700 cell specifications, it delivers superior energy density, stable high-current discharge performance and excellent single-cell consistency. It perfectly adapts to original battery module structure, vehicle BMS system and proprietary liquid cooling thermal management system. Widely applied for Tesla Model Y battery pack repair, module refurbishment, capacity restoration and aftermarket replacement, complying with automotive-grade reliability standards and global B2B wholesale demands.
Key Features
Exact OEM replacement with OE part number 1666969-00-C, fully compatible with Tesla Model Y (2021-2026) original 21700 battery packs.
Standard 21700 cylindrical dimension (21mm diameter × 70mm height), premium NCA/NCM ternary cathode material system.
Ultra-high energy density, stable power output supporting vehicle driving range and dynamic acceleration performance.
Low internal resistance, ultra-low self-discharge rate and reliable long cycle life.
Perfect matching with Tesla liquid cooling system and original BMS to ensure safe high-power operation.
Excellent single-cell uniformity, suitable for series-parallel assembly of large EV battery modules.
No memory effect, supports random shallow charge and discharge to extend overall battery pack service life.
Strict full-process quality control, stable performance and durable for long-term automotive aftermarket application.
Specifications
Battery Type: 21700 Cylindrical NCA/NCM Ternary Lithium Battery Cell
OE Part Number: 1666969-00-C
Compatible Vehicle: Tesla Model Y (2021, 2022, 2023, 2024, 2025, 2026)
Nominal Voltage: 3.7V
Nominal Capacity: 5300mAh
Charging Cut-off Voltage: 4.2V
Discharging Cut-off Voltage: 2.75V
Cell Size: 21mm (Diameter) × 70mm (Height)
Cathode Material: Nickel Cobalt Aluminum/Nickel Cobalt Manganese (NCA/NCM)
Anode Material: High-density artificial graphite
Continuous Discharge Rate: 1.2C
Cycle Life: ≥1300 charge-discharge cycles (80% capacity retention)
Internal Resistance: ≤27mΩ
Energy Density: 310Wh/kg
Discharge Operating Temperature: -20℃ ~ 60℃
Charge Operating Temperature: 0℃ ~ 45℃
Application: Tesla Model Y Battery Module Repair, Pack Refurbishment, Aftermarket Replacement
