Unleash the full potential of your high-drain devices with the EFEST 21700 30A 4000mAh Flat Top Rechargeable Battery. Engineered for superior performance, this battery boasts a robust 4000mAh capacity and an impressive 30A maximum continuous discharge, making it an ideal choice for power-intensive applications such as vaping devices, high-performance flashlights, and portable power tools. Experience reliable power delivery, enhanced durability, and exceptional safety with EFEST’s advanced IMR chemistry, all packaged in a versatile 21700 size.

• High Capacity: 4000mAh capacity ensures long-lasting use between charges, perfect for devices requiring sustained power.
• Powerful Performance:30A maximum continuous discharge provides robust power delivery for high-drain applications, supporting demanding electronic devices efficiently.
• Versatile Usage:Ideal for use in a wide range of devices, including portable power tools, and high-output flashlights.
• Advanced Safety Features:Unprotected flat top design made with IMR chemistry for a safer performance under high-discharge conditions.
• Optimal Dimensions and Weight:Sleek measurements (70.20 mm x 21.50 mm) and a lightweight design (68.0g) make it easy to carry and fit into compatible devices.