optima battery

K

kurt v

Well-known member
which battery are you using (part no) i'm tired of these acid batteries going bad. Carquest won't order me a battery because i complain when one comes in the date sticker is 6-7 months old, and none of the other 4 car parts stock 6 volt.

thanks
kurt
 
There is only 1 red top 6 volt optima battery. I have one that is close to 20 years old and still good with no battery tender
Sorry I don’t know part number
 
I love seeing those red 6v Optimas in my old junk, shows I care enough to buy the best. Also indicates the car is gonna start. I've bought 3, first one is coming up on 11 years old so we put it in the 8N. Waited for Amazon price to go down and cashed in my points for a new one.
 
Are these Optima batteries 6V or 8V? I thought I remember hearing folks talk about an 8V version? I am due for another battery - have had too many issues with lead acid batteries (when they sit too long).
 
Yes, in my '36 Ford pickup I have the Optima Red Top 12 Volt battery.

I modified the floorboard and fabricated a hold down bracket as well.
No need now to remove the wooden floo4rboard.

Bruce in California.
 

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The Optima Red Top" 6 volt battery being discussed here is 6 volts (3 cells). They are lead/acid batteries, but are made differently from "normal" batteries. Their construction is called "AGM", which stands for "Absorbed Glass Mat". Rather than being in liquid form, the electrolyte is carried in a glass mat.

For different chemistry batteries, I installed a "LiFePo4" battery in my Corvette a few months ago. I am sold on them completely. Their only shortcoming is that they just don't work below about 40 degrees. That's OK with me, since I don't own a pair of tire chains for it either. Unfortunately, there are no 6 volt versions available (yet).
 
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1936 ford pickup said:
Yes, in my '36 Ford pickup I have the Optima Red Top 12 Volt battery.

I modified the floorboard and fabricated a hold down bracket as well.
No need now to remove the wooden floo4rboard.

Bruce in California.
20260926_134118.jpg
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SORRY....wrong photo sent.
Here is the Optima Red Top battery and modified wooden floorboard with battery hold down that I fabricated.
 

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AFAIK Optima does not offer an 8v battery and the thought of them not working at a temperature below 40 degrees is hard, at best, to take seriously. unless it is -40 degrees. at which point, oddly enough, Fahrenheit and Celsius are identical! (i.e. -40C and -40F are the same temp).
 
hueyhoolihan said:
AFAIK Optima does not offer an 8v battery and the thought of them not working at a temperature below 40 degrees is hard, at best, to take seriously. unless it is -40 degrees. at which point, oddly enough, Fahrenheit and Celsius are identical! (i.e. -40C and -40F are the same temp).
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No. The "LiFePo4" battery is a completely different technology from an Optima, which is still a lead/acid battery and works at low temperatures. The battery I am referring to is a variety of lithium batteries intended for automotive use. The temperature restriction is very real, but of little consequence in some instances.

The main advantage is that although they look like a conventional battery, they are much more powerful and have a longer life. The battery I installed in my Corvette has 1000 CCA, a 10 year warranty, and weighs 15 lbs. And, it cost less than $200. If you have ever tried to install a conventional battery in a C2 Corvette, you would appreciate the significant weight reduction.
 
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tubman said:
No. The "LiFePo4" battery is a completely different technology from an Optima, which is still a lead/acid battery and works at low temperatures. The battery I am referring to is a variety of lithium batteries intended for automotive use. The temperature restriction is very real, but of little consequence in some instances.

The main advantage is that although they look like a conventional battery, they are much more powerful and have a longer life. The battery I installed in my Corvette has 1000 CCA, a 10 year warranty, and weighs 15 lbs. And, it cost less than $200. If you have ever tried to install a conventional battery in a C2 Corvette, you would appreciate the significant weight reduction.
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my apologies...it wasn't clear to me that you were referring to an OPTIMA battery in the first paragraph of your comment and then switched to a battery that had nothing in common to it in your second paragraph, although it started off with the sentence, "for different chemistry batteries". when you had just explained that the Optima "but are made differently from "normal" batteries", in the preceding paragraph.
 
Sorry. I was trying to point out the contrast between "differences in construction" and "differences in chemistry". The thread seemed to be drifting in the direction of Optima's not being lead/acid batteries (which they most certainly are).
 
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