After all, similar Black Crystal Batteries, Chen Xuantian has actually seen them before.
Yes, wasn't it that time at the Peak of Jiuxiao? Tie Dan was happily enjoying himself while Kun took him flying, and at the moon's surface, they saw an ultra-giant crystal as big as Nine Yin Mountain. Compared to the one in his hand, it was truly like comparing a small magician to a grand wizard. That thing might have been an ultra-giant reactor used to power the Second Void, the Umbrella Mushroom Titan.
With so many tribulations experienced, Chen Xuantian, having been spoiled so much, can be considered well-informed and knowledgeable. He could also calculate something at this moment.
