I have a Centennial Battery 26-75 500 CCA that isn't holding a charge for very long. It is a liquid acid battery and I prefer to replace it with a sealed gel-type chemical battery. Has anyone found a good sealed gel battery that is 26-75 and fits within the confined space for the battery?
Replies sorted oldest to newest
I haven't seen a gel-cell in that price range, but I do heartily recommend the Odyssey MC680. Tiny, light, and can be placed in any orientation other than inverted. No gases released so you can even put it in the passenger compartment. I've had a couple and they lasted years.
Thank you Lane!
I also run the Odyssey 680, which I went to because I had only a small space to fit it in. My first one lasted over 8 years and was totally trouble-free.
Question -- The height and width seem fine but when I look at the depth at 3 inches (versus 7 inches with the Centennial Battery that came with it) does that cause any issues with securing it to the footing plate?
I fabricated an aluminum hold-down strap. No issues.
I too have the 680.
Odyssey offers a mounting/hold down bracket that fits the 680 size package.
https://www.odysseybatteries.com/odyssey/hd680.html
I just bought the Odyssey battery and bracket at the same time from Amazon and mounted the bracket right to the front wall of the battery well in my CMC. It's a little busy in there, but you get the idea:
That bracket is what I used.
Does the bracket come with the battery or do you order it separately? Do you just drill through the current foot to accommodate the bolts in the Odyssey bracket? Also, I noticed the Odyssey PC680 has 170 CCA whereas the Centennial Battery that came with it has 500 CCA. If I have the Pat Downes CB Performance 2054 engine will the 170 CCA be enough?
Ahhh, Gordon, saw your post about ordering the bracket on Amazon. Note, my battery and resting plate for it is in the back to the right of the engine. Can you just drill two holes for the Odyssey bracket on the side of the existing resting plate?
Sounds like you have a Beck, which is what I had. I laid the battery on its side and made the strap to use the existing bolt holes.
Answering your questions, the Odyssey mounting bracket must be ordered separately. It's about $35 bucks
I have been starting my 2,110cc engine with that Odyssey battery for about ten years, now. It cranks over quickly and starts right up.
OK on your rear mounted battery. You'll have to decide if the Odyssey mounting bracket makes more sense for you than just making a simple bracket like Lane did. My only caveat would be that the bracket, which-ever you use, should hold the battery firmly (either vertically or horizontally) but not squeeze the case excessively, as that risks the possibility of rupturing the case and THAT isn't good. You can certainly drill holes in your existing battery hold-down bracket(s) to accept your new bracket for the Odyssey.
BTW: If you have regular SAE battery posts on your old battery, you need to buy the SAE conversion kit from Odyssey so that your battery clamps will work. The kit also costs around $35 bucks (that amount must be a "thing" with Odyssey....)
The mounting bracket on Amazon is not from Odessey. It may work fine.
Since your battery is in the engine compartment like mine was, you might want to consider the PC680-M with a metal case. My logic was that it would better handle the higher temps. It would also prevent any of the case rupture issues Gordon alluded to.
