Strong electromagnetic interference will also result in damage to laptop computers, although the notebook has a screen coating shell), this generally occurs in the design of notebook HP Laptop Battery IBM Laptop Battery computers or imperfect electromagnetic interference especially strong in such areas as telecommunications room, strong power stations and power plant rooms and other places, some of the poor design of electromagnetic shielding in these areas will be notebook computers frequently crash or stagnation, the average individual users will not encounter such an environment.