The XTAR VC2S charger is a two bay fast lithium-ion battery charger, featuring an upgraded LCD colour display screen to display the recharge status of your battery. With a press of a button the XTAR VC2S will switch the digital and simulated analogue readouts between real-time current, internal resistance and capacity of the battery cells on charge. Compatible with a range of IMR lithium vape batteries including 18650 sizes and 26650. Both channels are independent and it can also tell you if you have bad batteries. The VC2S features overcharge protection, over-discharge, short-circuit, and reverse polarity protection.