I'm going to start testing the gradual degradation of these SLAs that I just got. However, I need the device that I can hook up to check what the voltage it holds. Don't know where to start or what it's called.
I went to Radio Shack and they were fairly clueless. They said they don't have anything that measures rechargeables like lawmower batteries and the like. I found an altimeter and they said it is for home electric current. Thanks.