21700 4000mAh 40A High Rate Rechargeable Battery with 300 Cycles

INR21700N40A40 3.7V 4000mAh 40A 300 Cycles 21700 Battery

Product Name

INR21700-4000-3.7 21700 Battery

Advantages

• High energy density and long cycle life
• Superior high-rate discharge capability for demanding applications
• Enhanced safety and thermal stability
• Certified for compliance with international standards

Specifications

Cycle Life

Discharge Curve

Operating Temperature Range

Certifications

• BIS, KC, BSMI, CB, UL, CCC

Key Features

• High discharge rate up to 40A
• Excellent thermal stability and safety
• Long cycle life with minimal capacity degradation
• Environmentally friendly and RoHS compliant

Applications

• Electric tools (e.g., drills, saws)
• Floor cleaning machines (e.g., scrubbers, sweepers)
• Vacuum cleaners
• High-power portable devices

Usage Warnings & Precautions

• Use only with compatible chargers and devices.
• Avoid short-circuiting, overcharging, or over-discharging.
• Do not expose to high temperatures, fire, or water.
• Keep away from children and pets.

Storage Guidelines

• Store at 20±5°C with 50% SOC for optimal performance.
• Avoid storing in high humidity or extreme temperatures.
• Recharge every 6 months if stored for extended periods.

Warranty & Disclaimer

• 12-month limited warranty from the date of purchase.
• Warranty does not cover damage due to misuse, improper charging, or unauthorized modifications.
• Manufacturer is not liable for accidents caused by improper use.