Yellow top is/was a hybrid cranking/deep cycle battery, once popular for putting big stereo systems in cars because it could handle the discharge cycles of running the system without them engine running.
If I could easily repurpose the cells in my 140k mile Model 3 into home storage for my solar I would rather do that than sell the car. 3% degradation the car itself needed more work than a replacement battery ever would have cost.
Ive been using a yellow top for around 5 years in my CRV with no issues
had one in a car that rolled 4 times and it’s still working
Get a OPTIMA Yellowtop D35 Like I Did, I've Never Had Any Startup Issues Eversince, I Actually Regret Not Buying One Before I Spent $120 For a Battery Tender Jump Box From Amazon.com
I had a Red Top Optima battery, but it’s so dead that even my NOCO AGM charger won’t recognize or charge it.
The optimas (red top) I got in 2019 are still going. They are not the best though just better than liquid.
my Optima Red Top failed after 2 years & 7 months. this is the last time I'll buy one.
Optimas are not the brand they once were, I would never put one in my vette after the brand new $300 red top I put in my Durango basically exploded a week after I put it in.
Optimas don’t seem to hold up any better than the AGM from the parts store.
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