I found an old xbox 360 controller lying in a shoebox. The controller itself is 5 years old, but I haven't used it in the last 10 months, about when the batteries were put in. There were 2 AA batteries still left inside of it. Just for giggles, I tried turning it on, and the green led lit up for a sec then turned off. There's no sign of visible damage. After a battery replacement, is the battery pack and controller still safe to use, or should I still take some precautionary cleaning measures?
If there is no sign of battery leakage or corrosion, you should be OK to use it.
