Re: [electricboats] 15 KW DC l electric conversikon

LTO cells are lower per-cell operating voltage than more common Lithium chemistries making it more challenging to find a BMS that will work well, and requiring a higher cell count for a given capacity/voltage.  However, they do seem to offer much higher cycle counts.
I think the danger posed by prismatic cells is generally overblown.  For instance, the CALB SE200FI cells that I'm using have a minimum standard, requiring immersion in seawater for two hours without fire or explosion.  Some people seem to fear even the occasional splash of water on their lithium cells.  But a simple cover over the containment vessel/box ought to prevent nearly all potential problems short of holing or rolling your vessel.
IMHO flooded lead acid batteries are far more hazardous.
[-tv]

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