Efest 21700 4000mAh 30A Battery

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.

SPECIFICATIONS
You MUST read the safety warnings and resources before purchasing, using, and/or handling batteries.

⚠ WARNING:

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Use caution as misusing or mishandling the battery may cause a FIRE or EXPLOSION which may result in personal injury, property damage, or death. The user must have an appropriate understanding of the potential dangers of LITHIUM ION BATTERIES before purchase and usage. No express or implied guarantee of compatibility, suitability, or fitness for any particular purpose or device can be made. This battery is manufactured and sold for the intended use of system integrations with proper protection circuitry or battery packs with a BMS (battery management system) or PCB (circuit board/module). This battery is neither designed nor intended to be used with an E-CIGARETTE, VAPORIZER, or similar device and MUST NOT be used with such devices due to RISK OF FIRE or EXPLOSION. If purchasing this battery for resale purposes, you MUST forward ALL warnings to ALL customers for their reference and safety!

This cell is unprotected and intended for use in protected battery packs only and NOT individually or as a standalone product. In order to operate safely it must have additional protection in the form of a PCB (printed circuit board) or BMS (battery management system), which is not included.

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• DO NOT USE WITH E-CIGARETTE, VAPORIZER, OR SIMILAR DEVICE
• Additional battery manufacturer and battery industry association warnings for using lithium-ion batteries in e-cigarette or vaping devices can be viewed here: Be-CigaretteSafe.org
• BATTERY IS ONLY FOR USE IN PROTECTED BATTERY PACKS
• ONLY ASSEMBLE A BATTERY PACK IF YOU ARE COMPETENT IN DOING SO
• DO NOT STORE BATTERY/CELL LOOSE OR IN A POCKET, PURSE, ETC. ALWAYS USE A PROTECTIVE CASE OR BOX FOR STORAGE AND TRANSPORT
• WHEN NOT IN USE, ALWAYS STORE LITHIUM ION BATTERIES IN THE PROTECTIVE CASE/BOX IN WHICH BATTERIES WERE DELIVERED
• Misusing or mishandling lithium ion batteries can pose a SERIOUS RISK of PERSONAL INJURY, PROPERTY DAMAGE, OR DEATH
• BATTERIES MAY EXPLODE, BURN, OR CAUSE A FIRE IF MISUSED OR MISHANDLED
• Usage of batteries is AT YOUR OWN RISK!
• ONLY use with proper protection circuitry
• DO NOT short circuit intentionally or unintentionally
• KEEP AWAY from metal/conductive objects to prevent short circuiting
• DO NOT use if PVC wrapper or terminal insulator is damaged or torn
• DO NOT use if battery is damaged in any way
• DO NOT over-charge or charge above the maximum voltage rating
• DO NOT over-discharge or exceed the continuous discharge rating
• DO NOT modify, disassemble, puncture, cut, crush, or incinerate
• DO NOT expose to liquids or high temperatures
• DO NOT solder onto battery, spot weld only
• DO NOT use force to install or install in reverse/backwards
• ONLY use within manufacturer’s specification
• KEEP AWAY from pets and children
• ALWAYS charge in or on a fire-proof surface and never leave batteries charging unattended
• ONLY use a smart charger designed for this specific type of battery
• DO NOT mix and match brands and models, old and new, used and unused batteries
• STOP immediately if while charging/storing/using the battery it emits an unusual smell, feels hot, changes color or shape, or appears abnormal in any way
• It is your responsibility to determine that your charger or device is functioning properly
• If exposed to battery electrolyte, flush with water immediately and/or immediately contact a physician or emergency services
• DO NOT throw away in trash; contact your local jurisdiction for proper recycling or disposal
• Resellers MUST forward ALL warnings to ALL customers for their reference and safety