Talk:Accelerator/@comment-210.50.98.72-20150219083634/@comment-4176492-20150219094932

He lost his calculating ability when Amai Ao shot him in the head while Accelerator tried to cure Last Order. Touma managed to cancel out his power due to him having the Imagine Breaker, and Kihara Amata managed to cancel out his reflection by pulling his hand back when it hit Accelerator's automatic reflection field, causing Accelerator to unconsciously reflect the backwards movement, and getting punched as a result. He also managed to negate accelerator's vector control by playing sounds that distracted his brain from calculation.

Of these three, the only one who did permanent damage to his powers were when he lost his calculation ability since Amai Ao shot him. After that event, Accelerator can not speak or think properly without equipment to help him. However, Heaven Canceller gives him the choker-style electrode connected to the Misaka Network, and the electrode has at first enough battery power to make his brain function normally (thinking and walking) for 48 hours, and if he switches the electrode's mode to the power mode, he can use his powers for 15 minutes straight. GROUP technicians later manage to double this capacity. However, even with all of the brainpower in the Misaka Network, in it's "power" mode, the calculation ability is only half of what accelerator had before he was shot in the head, therefore he is weaker since his power is not as powerful, and also since he can only use his powers for 15 minutes tops.