Samsung 40T 21700 4000mAh 30A Batterys

*Please note that courier companies will only permit a maximum of TWO (2) lithium batteries per shipment. If you wish to purchase more than 2 batteries, please place separate orders to allow for this.

The Samsung 40T 21700 4000mAh 30A Batteries are ideal for powering high amp box mod and other high-drain devices.

Samsung 40T 21700 4000mAh 30A Batteries Features:

• Nominal Capacity - 4000mAh
• Continuous Discharge Current - 30A
• Nominal Voltage: 3.6V
• Maximum Voltage: 4.2V
• Top: Flat Top
• Type: Lithium-ion
• Size: 21700

Get an External Battery Charger HERE.

To ensure your safety and maintain the battery’s life and durability, we recommend you follow these rules:

• Do not over-discharge or overcharge the battery. Doing so will shorten the battery’s life and sometimes, it can make it pop or leak.
• Please do not short circuit or it will release a massive current.
• Do not play with fire! Do not dispose any kind of battery in or near any fire.
• Do not stack more than one battery as it may potentially blowout and cause serious damage to yourself and place.
• Always check battery’s condition to see if there are signs of wear and tear. If there is, please dispose the battery.
• Do not dispose batteries into the trash.
• Use an external battery charger when possible.

Note: There is always an inherent risk when using any rechargeable or lithium batteries at anytime and under any circumstances. Vapeology Ltd is ot held responsible for any damage for any modification of the batteries, chargers, devices and other products that we carry in any form or shape, this is including pack making.

Vapeology Ltd will not be held responsible or liable for any injury, damage, or defect, permanent or temporary that may be caused by the improper use of a Li-ion (Lithium-ion), LiPo (Lithium-ion Polymer) and any rechargeable battery/batteries as well as chargers. Please have a greater understanding of the batteries/chargers you are using and how to care for them properly.

When working with Li-ion (Lithium-ion), LiPo (Lithium-ion Polymer) and any rechargeable cells, please be cautious and carefully use as they are very sensitive to charging characteristics and may explode or burn if mishandled. Please make sure that you have great knowledge on all rechargeable batteries before you use them. Always charge batteries at the clean and fire-proof surface. Never leave charging batteries unattended. If you see that there are visible damages on the batteries, please do not use. Always keep, store and transport the rechargeable cells in a safe, non-conductive container in controlled environment.

Do not use any rechargeable battery as well as any battery charger if any visible damage is present, as well as if the cell or charger has been stressed through mishandling, accidental or otherwise, even if damage may not be visible. Always store and transport rechargeable cells in a safe, non-conductive container in a controlled environment. Please dispose battery cells, chargers or any other electronic devices in accordance of local laws and mandates.