Link: 21700 battery
Vaporesso Armour Max Box Mod Description:
crafted from TPU material to become durable and broken resistant. It supports dual external 21700/18650 batteries with 220W max and Type-C charging. Powered by AXON chip, it has F(t)/Pul/ECO/TC-TI/TC-SS/TC-NI modes to personalize your vaping experience. The uni-lock design with ignition and lock function can secure the power in a smart way and the one-key lock design can enhance both simplicity and stability. In addition, equipped with 0.96'' TFT screen, it can show you the vaping info more intuitively. Pair with ITANK 2 BROWN. Purchase separately.