Not so, as by definition, an intermittent problem is reoccurring. Trust me, I’m very familiar with the science of maintaining lead acid batteries, including training from C&D corp when dealing with a fleet of electric forklifts in private industry. We always have to consider and determine if a, “battery goes dead spontaneously” is actually an outside cause & effect, since batteries don’t have a sign pop up telling you why they were 13.4 yesterday and maybe 11.8 a day or two later. I have a car that delighted in making me grab the booster box once a month because the car was cranking over slowly. I seldom drive it after dark, and several tries with an ammeter in series from the battery would show no draw beyond the electric clock. Then one rainy day when I was in the garage with the door closed and a single overhead bulb on instead of the banks of fluorescents, I spied a gleam of light coming from the top crack of the “closed” glove box door. Sure enough, barely breathing on the door was enough to shut off the light. Older cars have many mechanical contacts that can stick as the get pitted, both on loads and mechanical regulators. All I’m saying is one can’t assume anything about a low battery until they can disprove all other scenarios with the Socratic Method, i.e. good, basic troubleshooting.