High Power 18650 NCA/SiOx Battery 2.9Ah 12C ATOMFAIR®

$30.00

Institutional Procurement & Supply Compliance: As a verified US supplier, Atomfair accepts formal institutional Purchase Orders (POs), contract billing schedules, and custom procurement loops for university and national laboratories, and corporate R&D departments globally.

Commercial-grade 18650 NCA/Gr+SiOx Li-ion cell, 2.9Ah at 3.6V with 12C discharge, ≤8.0 mΩ resistance, and -60°C to +60°C range. Order now.

High Power 18650 Cylindrical Lithium-ion Battery – NCA / Gr+SiOx (4-Pack)

COMMERCIAL GRADE · PRODUCTION

Product Overview

Designed for demanding high-current engineering workflows and precision integration, this industrial-grade high power 18650 cylindrical battery leverages an optimized NCA silicon oxide chemistry matrix (Nickel Cobalt Aluminum / Graphite + Silicon Oxide). Engineered to support a reliable 12C continuous high rate discharge envelope, the 2.9Ah 3.6V system satisfies heavy load demands effortlessly while maintaining high energy density metrics (≥220 Wh/kg). This highly durable cell configuration offers exceptional structural safety parameters alongside an ultra-wide temperature range battery cell operating architecture, discharging uniformly across severe sub-zero environments down to -60 °C. It acts as a supreme hardware standard for portable power tools, high-frequency drone prototyping, backup UPS networks, and hybrid vehicle powertrain modeling projects. For bulk inquiries or official volume quotations, please contact us via email at inquiry@atomfair.com.

Technical Specifications

PARAMETER VALUE
1. Core Device & Electrochemical Design
Cell Format Standard Cylindrical Form Factor (18650 Profile)
Cell Chemistry Link NCA / Gr+SiOx (Nickel Cobalt Aluminum / Graphite + Silicon Oxide)
Rated Capacity / Rated Voltage 2.9 Ah / 3.6 V (@ 0.2C Evaluation Rate)
Voltage Range Parameters 4.20 V Cut-off – 2.50 V Cut-off
AC Internal Resistance ≤ 8.0 mΩ (@ 50% State of Charge)
2. Cathode & Charge Parameters
Standard Charge Current 1.0 C
Max. Continuous Charge 3.0 C (Thermal cut-off @ 60°C)
Charge Temperature Range 0 °C ~ +60 °C
3. Anode & Discharge Parameters
Standard Discharge Current 1.0 C
Max. Continuous Discharge 12.0 C (Thermal cut-off @ 80°C)
Pulse Discharge Current (10s) 20.0 C (≥ 30% State of Charge)
Discharge Temperature Range -60 °C ~ +60 °C
4. Physical Package & Energy Metrics
Estimated Dimensions 18 mm × 65 mm (Φ × H)
Estimated Weight 46 g
Gravimetric Energy Density ≥ 220 Wh/kg (@ 0.2C Rate)
Volumetric Energy Density ≥ 620 Wh/L (@ 0.2C Rate)
Verified Lifecycle Metrics (@ 25°C) ≥ 1000 cycles (1C/1C 100% DOD) | ≥ 500 cycles (1C/4C 100% DOD) | ≥ 300 cycles (2C/8C 80% DOD)
Alternative Catalog Items Explore our complete component catalog for alternative volumetric capacities, high-conductivity polymer separators, aluminum-laminated protective packaging films, or multi-channel battery cycling systems.

Key Features & Advantages

  • High Power Discharge: Supports 12.0C maximum continuous discharge and 20.0C pulse discharge (10s), delivering exceptional power for demanding applications.
  • Fast Charge Capability: 3.0C maximum continuous charge enables rapid recharging, reducing downtime in high-usage scenarios.
  • High Energy Density: ≥220 Wh/kg and ≥620 Wh/L, combining high capacity (2.9Ah) with a compact 18650 format.
  • Extreme Temperature Range: Discharge from -40°C to +55°C and charge from 0°C to +55°C, reliable in cold environments.
  • Advanced NCA/SiOx Chemistry: Nickel Cobalt Aluminum cathode with silicon oxide-blended graphite anode provides superior energy density, rate performance, and cycle stability.

APPLICATION SCOPE: Highly recommended for professional power tools, high-drain drone assemblies, industrial UPS configurations, high-altitude research setups, and electric vehicle battery module prototyping.
SHIPPING & LOGISTICS: Secured within shock-damping hazardous material transport packaging boxes to preserve terminal connections. Arrives pre-calibrated and complete with comprehensive factory batch inspection data certificates.
IMPORTANT NOTICE: This high-power 18650 cell features low internal resistance (≤8.0 mΩ) and robust thermal management. Charge with CCCV profile, cut-off at 60°C. Discharge cut-off at 80°C. Do not exceed rated currents. Store in dry, ventilated area between 15-30°C. Do not disassemble, short circuit, or expose to fire.

TAILORED SOLUTIONS FOR RESEARCH
Contact our engineering team for technical support or official institutional quotations.
EMAIL: INQUIRY@ATOMFAIR.COM
MANUFACTURER: ATOMFAIR LLC
BRAND: ATOMFAIR®

This battery requires strict adherence to voltage, temperature, and current limits to prevent thermal runaway. Store in a dry, ventilated area between 15-30°C and avoid physical damage.

  • Charge Temperature Limit: Charge the battery only within 0°C to 60°C with a thermal cut-off at 60°C.
  • Discharge Temperature Limit: Discharge the battery only within -60°C to 60°C with a thermal cut-off at 80°C.
  • Current Limits: Do not exceed the maximum continuous charge current of 3.0C or the maximum continuous discharge current of 12.0C.
  • Storage Conditions: Store the battery in a dry, ventilated area between 15°C and 30°C.
  • Prohibited Actions: Do not disassemble, short circuit, or expose the battery to fire.

Follow these steps to safely charge, discharge, and store the battery. Always monitor temperature and current during operation.

Required Equipment: CCCV charger

  1. Charge Battery
    Charge the battery using a CCCV profile with a temperature cut-off at 60°C.
  2. Discharge Battery
    Discharge the battery with a temperature cut-off at 80°C and do not exceed the rated currents.
  3. Store Battery
    Store the battery in a dry, ventilated area between 15°C and 30°C.
  4. Avoid Hazards
    Avoid disassembling, short-circuiting, or exposing the battery to fire.

What is the cycle life trade-off when operating this NCA/SiOx 18650 cell at high continuous discharge rates like 8C or 12C?

At 25°C, the cell delivers ≥1000 cycles at 1C/1C 100% DOD, but under more demanding 1C/4C 100% DOD it achieves ≥500 cycles, and at 2C/8C 80% DOD it provides ≥300 cycles. This degradation reflects the increased stress from high-rate discharge on the silicon oxide-blended graphite anode, which enhances energy density but accelerates capacity fade under extreme current loads.

What charge voltage and temperature window must a BMS enforce for safe integration of this 18650 NCA/SiOx cell?

The cell requires a CCCV charge profile with a maximum voltage of 4.20V and a cut-off at 2.50V. Charge temperature range is 0°C to +60°C, with thermal cut-off at 60°C. The standard charge current is 1.0C, and max continuous charge is 3.0C. These parameters must be strictly adhered to prevent thermal runaway, especially given the low internal resistance (≤8.0 mΩ) which can lead to high current draw if not properly managed.

What storage conditions and handling precautions are necessary for this high-power 18650 battery with an extreme low-temperature discharge capability?

Store in a dry, ventilated area between 15-30°C. Do not disassemble, short circuit, or expose to fire. The cell can discharge from -60°C to +60°C, but charging is only permitted from 0°C to +60°C. The low internal resistance (≤8.0 mΩ) means the cell can deliver high currents, so proper insulation and terminal protection are critical during handling. The 4-pack should be secured in shock-damping hazardous material transport packaging.

This 18650 cell with NCA/Gr+SiOx chemistry delivers 12C continuous discharge (20C pulse) and 2.9Ah capacity in a compact form, with wide discharge temperature range down to -60°C but charge limited to above 0°C.

Positive

  • High power discharge capability: Supports 12.0C maximum continuous discharge and 20.0C pulse discharge (10s), enabling sustained high-current loads for demanding applications like power tools and drone assemblies.
  • Ultra-wide discharge temperature range: Discharge operational from -60°C to +60°C, allowing reliable performance in severe cold environments such as high-altitude research and cold-climate systems.

Trade-offs

  • Charge temperature restriction: Charge temperature range is limited to 0°C to +60°C; charging below freezing is not allowed, requiring thermal management in cold environments.
  • Thermal monitoring required for high rates: Max continuous charge (3.0C) and discharge (12.0C) invoke thermal cut-offs at 60°C and 80°C respectively, necessitating active temperature sensing and heat dissipation in high-duty cycles.

Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.

To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.

Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).