Tweet
Well, folks, the foreclosure of possibility of future 100.0 point C4 Corvettes may have, effectively, occurred. As some folks may know, C4 Corvettes used a battery known as a Group 75B. Delco used to offer both a 75A and a 75B. The 75A was used for the vast majority of installations requiring the Group 75 size battery. The 75B was used only for a small number of applications, including C4 Corvette.
What's the difference between a 75A and a 75B. Well, to most folks, it's a rather insignificant one and most C4 Corvettes are fitted with 75A replacement batteries since they are the only one that most distributors stock. However, the difference in the 2 batteries is the relative position of the Delco-Eye, built-in hydrometer. For 75A batteries, the Delco-Eye is on the positive terminal side of the battery's upper surface; for 75B batteries the Delco Eye is on the negative terminal side of the battery's upper surface. That's because on C4 applications, the Delco-Eye on the positive side of the battery is obscured from sight by other vehicle components.
Well, it seems that in the last few years Delco has discontinued the 75B series batteries. Now, there is just one battery known as group 75; no suffix codes. However, the placement of the Delco Eye is the same as the old 75A. I don't think that any other manufacturer ever offered A and B-suffix coded group 75 batteries since none ever used a built-in hydrometer.
Of course, the Delco-Eye, built-in hydrometer is just about as useless of an item as there could be, in my opinion. I don't think that they ever work properly and no one that I know of, including me, pays any attention to them, at all. I find it hard to believe that they've been installed in Delco batteries all these years. I think that it's more of a marketing thing than useful. The Delco Eye may give the battery more PERCEIVED value and sophistication.
In any event, when future C4 judges are looking for that negative side Delco-Eye, I don't think that they're going to find any. Batteries are limited life items and that's especially true of these maintenence-free, sealed type units. Even if there are a few in-service or old stock 75B's still around, their life clock is ticking and there's no way to stop that. It's inexorable. And, like each of us, when their dead, their dead.
What's the difference between a 75A and a 75B. Well, to most folks, it's a rather insignificant one and most C4 Corvettes are fitted with 75A replacement batteries since they are the only one that most distributors stock. However, the difference in the 2 batteries is the relative position of the Delco-Eye, built-in hydrometer. For 75A batteries, the Delco-Eye is on the positive terminal side of the battery's upper surface; for 75B batteries the Delco Eye is on the negative terminal side of the battery's upper surface. That's because on C4 applications, the Delco-Eye on the positive side of the battery is obscured from sight by other vehicle components.
Well, it seems that in the last few years Delco has discontinued the 75B series batteries. Now, there is just one battery known as group 75; no suffix codes. However, the placement of the Delco Eye is the same as the old 75A. I don't think that any other manufacturer ever offered A and B-suffix coded group 75 batteries since none ever used a built-in hydrometer.
Of course, the Delco-Eye, built-in hydrometer is just about as useless of an item as there could be, in my opinion. I don't think that they ever work properly and no one that I know of, including me, pays any attention to them, at all. I find it hard to believe that they've been installed in Delco batteries all these years. I think that it's more of a marketing thing than useful. The Delco Eye may give the battery more PERCEIVED value and sophistication.
In any event, when future C4 judges are looking for that negative side Delco-Eye, I don't think that they're going to find any. Batteries are limited life items and that's especially true of these maintenence-free, sealed type units. Even if there are a few in-service or old stock 75B's still around, their life clock is ticking and there's no way to stop that. It's inexorable. And, like each of us, when their dead, their dead.
Comment