Starting Problem - Battery?
I have a classic Suzuki GS series I haven't started for a few months, but had it on a Battery Tender. The battery is about 3-4 years old I think. When I went to start it, the lights came on brightly, but when I thumbed the started button, it just chugged and stopped every time I pressed it.
I pulled out the battery, and noticed that it was pretty dry, so I added water and charged it to full. I reinstalled it, but the bike did the same thing when I tried to start it, however I was able to push/run start it. I then went out for a good long ride with no issues, parked it for a while, came back, and it was the same thing, so I had to push start it again.
I don't know much about batteries, but I suspect that the battery is essentially toast, and although it has enough charge to light the lights, it does not have the cranking power to turn over the engine anymore, is this possible?
Is there some way to test and verify that this is indeed the case before spending the money on a new battery?