Wednesday, October 23, 2024

Re: [electricboats] Configuration for converting 1963 Mercury outboard to electric?

LiFePO4 (Lithium Iron Phosphate) is the same as LFP (Lithium Ferrophosphate):
 
 
I'm using 180Wh/Kg to arrive at ~250lbs.  That's the best gravimetric energy density for LFP that's widely available.
 
And yes, dropping your runtime requirement to half will reduce the battery weight by half.
 
There are more energy-dense battery chemistries available, but as you point out, those will not be as safe as LFP.
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