Re: GB games still working?
The bad thing is: you can't prevent the saves from being eventually erased. There's no running away from the bitter feeling of having to deal with your GB game saves each day, knowing it can be their last.
My Red has died once, then I changed its battery (go to a place where people change batteries from watches, probably a CR2025 or CR2032) and it works fine now. My Silver is still kicking with the same battery it had when I bought it, almost 6 years ago.