A 20700 battery is a high-drain lithium-ion rechargeable cell developed for enhanced energy density, longer cycle life, and higher discharge rates. With dimensions of 20mm in diameter and 70mm in length, it serves as an advanced alternative to 18650 batteries, providing increased capacity and power output for demanding applications, including electric vehicles, power tools, industrial-grade flashlights, and energy storage systems.
Technical Specifications
Voltage:3.6V – 3.7V nominal, full charge at 4.2V, and discharge cutoff at 2.5V – 3.0V.
Capacity Range: Typically between 3000mAh and 4500mAh, depending on chemistry and discharge rating.
Battery Chemistry Types:
Lithium Cobalt Oxide (LiCoO₂ - LCO): High energy capacity, ideal for extended runtime applications.
Lithium Nickel Manganese Cobalt Oxide (LiNiMnCoO₂ - NMC): A balance of power, safety, and longevity for EVs and industrial use.
Lithium Iron Phosphate (LiFePO₄ - LFP): Superior thermal stability and long cycle life, but with a lower nominal voltage (3.2V).
Discharge Rate (CDR): Certain high-drain 20700 cells offer continuous discharge rates of 30A – 45A, making them ideal for heavy-load applications.
Cycle Life: Can last 500 to 1500+ charge cycles, depending on usage and chemistry type.
Protected vs. Unprotected 20700 Cells
Protected 20700 Batteries: Feature an internal protection circuit to prevent overvoltage, overcurrent, and deep discharge, making them safer for standalone use.
Unprotected 20700 Batteries: Best suited for custom battery packs and devices with external Battery Management Systems (BMS).
Industry Applications for 20700 Batteries
✔ Electric Vehicles & E-Bike Battery Packs: Used in high-performance EV modules to maximize efficiency. ✔ Professional-Grade Flashlights & Tactical Gear: Powers long-lasting, high-lumen LED flashlights. ✔ Cordless Power Tools & Industrial Equipment: Integrated into high-drain, rechargeable power tools. ✔ Renewable Energy Storage & Off-Grid Systems: Commonly found in solar storage systems and UPS battery banks.
Choosing the Right 20700 Battery
🔹 Voltage Compatibility: Confirm that your device supports 3.6V or 3.7V, as some applications may require 3.2V LiFePO₄ cells. 🔹 High-Drain vs. Standard Cells: Devices requiring continuous high power output should use high-CDR 20700 cells. 🔹 Flat Top vs. Button Top: Ensure compatibility with your device’s battery compartment.
At IMR Batteries, we provide premium-quality 20700 lithium-ion cells from top manufacturers, ensuring high performance, safety, and long lifespan. Browse our selection today for the best battery solutions tailored to your needs.
