Most vape mods that explode are usually those that are charged inappropriately. Mods typically come with charging guidelines that indicate the proper charge duration and the amperage for the charge. Some people fail to follow these guidelines and charge their mod batteries using varying power sources. The current that is delivered through the USB varies greatly and can usually result in a significant amp difference. If the current is too high, the vape mod batteries are likely to overheat. When the issue is not immediately addressed, the mod can explode during or even after the charge.