Out of the blue, the engine cranks with a slight hesitation to begin with. Checked with Voltometer after a night, reads about 10V. With engine running about 13.8-14V. The hydrometer still reads "good battery" it's the OE maintenace-free Delphi battery.

Time to replace? It is 3.5 years old. I didn't do any thing to the electrical system in a long time to cause a draw, but I think that the battery just doesn't hold a charge any more?


PS. I'm in South Florida so with our Heat/Humidity the batteries supposebly don't last long. And I can't seem to find an Interstate battery with the same 600-CCA rating (I can get a really good price on them).


-Mark