21700 Cylindrical NCA/NCM Battery for Tesla Model 3 (2018-2026, Highland LR AWD) OE#1666969-24-E
Specifications
Details
Product description
Product Overview
This 21700 cylindrical NCA/NCM ternary lithium-ion battery cell is direct OEM replacement engineered for Tesla Model 3 (2018-2026) with exclusive OE part number 1666969-24-E. Adopting original NCA/NCM composite cathode chemistry matching Tesla factory 21700 cell standard, it delivers superior energy density, stable high-current discharge performance and excellent single-cell consistency. It fully adapts to original battery module structure, vehicle BMS system and proprietary liquid cooling thermal management system. Widely applied for Tesla Model 3 battery pack repair, module refurbishment, capacity restoration and aftermarket replacement, meeting automotive-grade reliability and global B2B wholesale requirements.
Key Features
- Exact OEM replacement with OE part number 1666969-24-E, full compatibility with Tesla Model 3 (2018-2026) original 21700 battery packs.
- Standard 21700 cylindrical dimension (21mm diameter × 70mm height), premium NCA/NCM ternary cathode material.
- Ultra-high energy density, steady power output supporting vehicle driving range and acceleration performance.
- Low internal resistance, ultra-low self-discharge rate and long stable cycle life.
- Perfect adaptation to Tesla liquid cooling system and original BMS for safe high-power operation.
- Outstanding single-cell consistency for series-parallel combination in EV battery module assembly.
- No memory effect, random shallow charge-discharge allowed to extend overall pack lifespan.
- Strict automotive-grade quality control, durable performance for long-term aftermarket and OEM supply.
Specifications
- Battery Type: 21700 Cylindrical NCA/NCM Ternary Lithium Battery Cell
- OE Part Number: 1666969-24-E
- Compatible Vehicle: Tesla Model 3 (2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026)
- Nominal Voltage: 3.7V
- Nominal Capacity: 5350mAh
- Charging Cut-off Voltage: 4.2V
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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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