The in-laws gave us their treadmill with a pulse display thingamabob of some sort. The thing takes two double-A batteries. So I removed the old, leaked pair and put new ones in. Won't work. Here I am thinking that it's gone and busted, but it could also be the "acid", the white powder that's on the little metallic things that touch the ends of the batteries (you can tell I don't have the terminology down for these things...). Anyhoo, can I use just water, or rather a wet cloth or something to clean the battery "socket"? The reason I am asking is I don't really know what the "battery acid" (white powder-like substence) consists of and how it reacts to water and such, but I've always been told the stuff is extremely unhealthy.
So how do I remove the stuff from the battery socket without too much of a hassle and as little damage to my health as possible?
