Trek said..
IMHO even LiFePO4 barreries can burn but are enormously safer than other chemistries. Thermal run away much less likely. Since we cant see inside a big battery we have to assume its unknown BMS and cell quality unless certified. So take precautions. Put them in a metal vented box so if they fail the fire is less likely to sink the boat. Like on aircraft that use them. And monitor their temperature. I dont have mine in a box but both batteries have temperature sensors glued on top to trigger an alarm if they get hot and isolation relays to disconnect them if that happens.Maybe Im paranoid but fires on boats are scary.
I was told recently that I could only upgrade to Lithium batteries if they were in a sealed compartment that vented outside the cabin. Is this so? In that case my upgrade options are limited without substantial work.
