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Old 05-11-2013, 12:56 PM   #27
Ebaugh
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City: Panama
Country: Florida
Vessel Name: Mar Azul
Vessel Model: DeFever 44
Join Date: Jan 2013
Posts: 32
Quote:
Originally Posted by skidgear View Post
I spent much of this week speaking with the technical staff of several large insurance companies about the confusing and potentially dangerous situation that is developing for Lithium batteries amongst do-it-yourself boaters. Every one of them is extremely concerned with the "wild west" (their words) information scenario that is developing in the marine community... primarily via boating web sites. ABYC is in the loop and I suggested that they step up their efforts to clarify design, component certification, installation, monitoring, maintenance, and inspection criteria for a minimum acceptable system. I have also alerted the Coast Guard Engineering and Boating Safety offices to the potential safety scenario that is clearly developing. I specifically requested that both ABYC and the Coast Guard conduct a serious engineering assessment of the Greenline boats that are being imported. Awards in the categories of design innovation and eco-friendly are nice, but the important categories are performance, safety, and quality. Greenline might set the example for the industry...good or bad. Information in these threads is heavy on performance potential and light on safety. The word cavalier comes to mind.
The problem is no one in the alphabet soup you mentioned has much practical experience with lithium phosphate in marine applications. Really no one does yet. Genasun, Mastervolt and Victron have products, but the installed base is small. The collective DIY installed base is probably even smaller. If you know of incidents related to marine LFP installs please share them, and we can worry about the safety together. Boeing's problems and the earlier laptop fires were for cells with significantly different characteristics than what is being used for marine. Don't take my word for it, read this:

http://www.electrochem.org/dl/interf...2_p037_044.pdf

It's clearly stated there that LiFePO4 cells are the safest available. That does not mean some unique precautions are not justified, but I don't think it's a looming safety crisis. If you do some homework, and I have. Have you?
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