The Sony VTC6A 21700 battery is compatible with a range of vape devices and kits. This 4000mAh battery is ideal for high-wattage vaping.

Remember to always check compatibility before using this battery with your device or kit. 

Specifications:

• Capacity: 4000mAh
• Max continuous discharge: 40A
• Nominal operating voltage: 3.7V
• Full charge voltage: 4.20V±0.05V