I'm on my 4th IGo Stowaway folding keyboard. I'm happy these keyboards are still available, though they are getting scarce. My recent ones have developed a pattern of malfunctions. I think I have identified the problem and wanted potential buyers to know. After a few months of use, I found that certain keys, especially J K L M and N, started to work unreliably. Often they would start working again if I restarted the my device and re-connected the keyboard. But then the problem would gradually re-appear after an hour or so of typing.Naturally I tried all kinds of things to diminish this problem, but it kept getting worse until I had to get a new keyboard. But after a few months, the new keyboard would develop the same symptoms. I chalked this up to the age of these keyboards. It's been years since they were manufactured.Last month when the bad-key problem re-emerged I switched back to one of my old keyboards. To my surprise, the old keyboard worked perfectly---for a few days. This give me an idea of what might be wrong. I tried this idea, and my bad-key problems have gone away.My diagnosis is that the low-power indicator on the keyboard has grown inaccurate with age. To test this, I waited until I noticed bad-key behavior. I replaced the batteries with new ones. The problem went away. I tested the old batteries, and indeed, one of them was low on power. In the subsequent week or two, I've had no more bad-key problems.Moral: If your iGo is malfunctioning, try replacing the batteries, even if the keyboard is not indicating low batteries.