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Go Back   SailNet Community > On Board > Gear & Maintenance
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  #1  
Old 11-05-2008
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Special for Battery freaks

Li-Ion is making it's way into boats. have a look at:-
Mastervolt Li-ion boat battery - TheMainSail Product news
Any experience anyone?
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  #2  
Old 11-05-2008
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# RRP: In the region of £3,100 + VAT
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If a dirty bottom slows you down what do you think it does to your boat
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Old 11-05-2008
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chucklesR is a jewel in the rough chucklesR is a jewel in the rough chucklesR is a jewel in the rough
In 2020 when they become affordable then they are a maybe...of course they will be obsolete by then because we'll figure out how to get solar panels to work at night.
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Old 11-05-2008
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No way

I wouldn't even consider paying 500 pounds. I'm still waiting on Firefly. The latest I hear is that an Oasis battery is supposed to be produced in the first quarter of 2009 for the trucking industry. It is designed to take care of the hotel loads as truckers are not going to be allowed to idle engines any longer (by law).
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Old 11-05-2008
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Well whatsa matter? You don't think 3X the life is worth 50X the cost of lead-acid batteries?

This is technology and innovation.

Wait five to seven years for when all the geeks and engineers driving Prius (Priusii?) have to replace the batteries. THEN you'll see cheaper batteries being developed.
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Old 11-05-2008
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Not ready for prime time yet... also, they don't say anything about needing much more sophisticated chargers for LiIon batteries... they tend to ignite/explode if not charged properly... remember the Laptop Battery Recall (Dell, Sony, Toshiba, Apple)... yup...same technology.
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You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

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StillóDON'T READ THAT POST AGAIN.
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Old 11-05-2008
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I think those are Li-Po (Lithium-Polymer) and of different composition. I fly radio-control and our field does not allow charging the Li-Po batteries on site anymore as we had three fires in two months from two planes and one helicopter bursting into flames on a quick 12v field-charger. The helicopter was sitting inside the open hood of the plastic engine "spat" in the guy's car and did some pretty goods paint & plastic damage to the vehicle on the way out.
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The two technologies that I think may become affordable are Lithium-Phosphate, and The Carbon plate thing (Firefly) The firefly batteries might be the first new technology that makes sense for boating - 800 charge cycles at 80% DOD. So they might last for 1.5-2x the life of an AGM. Maybe.

A group 31 Lithium Phosphate battery is around $2500, but not available to the general public. Bring that down to $1000, and it starts to make sense from a long term "Investment" standpoint.

Chris
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Old 11-05-2008
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I guess when they say 3 x the equivalent gel battery price, they mean the price of their own gel batteries....
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I think if I'm going to spend a bundle on Lithium Ion batteries, it's going to be in one of these.
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