I'm having trouble getting my brand new lead acid battery to register over 11.4 volts after charging it on my Optimate 4 charger. Sitting on my workbench for a day or two without being connected to my charger results in the reading dropping to about 8.7. When I install it in the bike, the lights work, but absolutely nothing happens when I hit the start button. I'm thinking the battery should read something like 13 volts. So I'm about ready to give up and look for a maintenance free battery for my bike if there is such a thing. Thanks for any help/advice.