21700 4000 mAh and 40A battery by Ucell

Designed to handle the watts, this 21700 battery from Ucell is perfect for electronic and mechanical boxes that pack a punch. With a capacity of 4000 mAh and a maximum discharge current of 40A, it ensures more than solid autonomy and constant power, even for hard-core vape sessions.

Features of the Ucell 21700 4000 mAh 40A rechargeable battery:

• 4000 mAh autonomy
• 40A maximum discharge current
• 30A continuous discharge current
• Chemistry INR
• 3.7 V Li-Ion
• French design
• Made in China

Tips for safe use of your battery

To prolong the life of your battery and ensure maximum safety, it is best to use an external battery charger.

Important: be sure to follow the safety instructions to avoid any risk.

• Do not use a battery if its wrap is damaged.
• Always store your batteries in a secure case, never leave them loose in a bag or pocket.
• Avoid contact with metal objects to prevent short circuits.
• If you have any doubts about the condition of your batteries, replace them immediately.
• Recycle your batteries at a suitable collection point.