Duracell Ultra Battery Recommendation

@MIG is there a real chance of a fire with the Lithium ? Or is this just a wives tale ?

Idaho Red Rocket 3 said:

@MIG is there a real chance of a fire with the Lithium ? Or is this just a wives tale ?

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Not that I am aware of. Any impact severe enough to crush the battery and cause a fire would be the least of my worries. I've seen tests of lithium batteries catching fire when crushed; this includes the battery in my laptop. It can happen, but is unlikely. I see it as the same risk level.
-MIG

I have a 10 year old Shorai Lithium battery in my Touring and it works perfectly. 540 CCA equivalent, spins the engine like it was a sewing machine. However, I did notice it's started showing some indications of age, so I have a new Fulbat Lithium sitting on my kitchen table ready to go in. The Fulbat cost under half here in Europe, I could have gotten a Shorai again and I wanted to but for 500+ euros that was a tad bit rich for my blood. Lithium costs more up front but 200€ over a 10 year period is so worth it. This battery may outlast me... man I'm old. But either way, lithium is absolutely the way to go these days. More money up front, much better TCO over time, and well... the new Fulbat claims 720 CCA equivalent.

Idaho Red Rocket 3 said:

@MIG is there a real chance of a fire with the Lithium ? Or is this just a wives tale ?

Click to expand...

"Lithium" covers a lot of ground. Essentially these days you can split it into LFP, lithium ferrous phosphate (or LiFePo4) in one category, and all the other much more dangerous Lithium in the other. Your Tesla etc uses a lithium cobalt chemistry which is considerably more energy dense than LFP, so it has more power for the weight. But a high energy density means that if you penetrate it and cause a short, all that energy goes up in an unstoppable conflagration. Those batteries also need active heating and cooling systems to prevent any runaway reactions.

An LFP battery which is the chemistry in all these motorcycle batteries weighs more and has less energy in it; I've seen tests where they just shot a battery with a hunting rifle, through and through. It started smoking, and it started swelling up, but there was no open flame or explosions. It's simply not energy dense enough for that. I've had a Lithium unit in my bike for 10 or so years and it's been faultless.