So I apparent have an optima red top (8004-003 34/78)
Specs are:
CCA - 800
CA - 1000
RC - 110

Based on Optimas site it notes I need (8020-164 35)
Cold Cranking Amps: 720
Cranking Amps: 910
RC - 100

Seems like it's compatible but wanted some other opinions, thanks

 

If it physically fits and the terminals are on the correct side, then I wouldn't hesitate to use the one you have now. I tend to go with larger batteries whenever space (and money) permits. The battery you have is slightly better spec'd than the 8020-164-35

 

Thanks GSteg...
Will cranking amps cause damage to electronics or starter cause of the higher power?

 

No it will not cause damage. The battery can provide up to the rated cranking amps. Your electronics will only take in what it needs, and nothing more. Can you imagine what would happen if an OEM battery forced 910 amps through your light bulbs?

 

LOL!!!!!!! Good point! Ok

 

Counterpoint:

My bigger passion is my 29 year old pickup truck and off-roading, which really taxes a battery when you have winching, plus a kick-*** stereo. I had an Optima red-top in my truck until last fall, when it died after 15 years. Based on the reviews of the current Optimas, I would not buy another one. Sears Die-Hard Platinum is the way to go now, they are a re-badged Odyssey, and provides 950 CCA (group 34/78). Very nice battery.