I haven't used it much, so I think the battery and the condition of the internal components are quite good. I've been storing it with the power off. I've been regularly charging it every six months. It's a mystery why there's a screen burn-in-like symptom, even though it's just been stored. It doesn't affect TV mode, and it's not very noticeable when the background isn't white. I'll include a protective cover. Thank you.