Hi all,
There was an article on this battery in the Passagemaker magazine around March 2009. I don't have a link, but here's a transcript below.
Happy reading!
Pierre
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A POWERFUL LITHIUM BATTERY FROM MASTERVOLT
Energy independence in 10 years - that's the mandate from our new president. Regardless of your political leanings, it's difficult to argue with this ambitious goal. After all, who doesn't want to cast off the yoke of dependence on foreign energy supplies?
Although their technology hasn't changed much since they were invented 150 years ago, lead-acid batteries have received much attention in the quest for energy independence. Improving their output and operating characteristics is essential for efficient propulsion of electric vehicles, including boats. A variation on this theme, the lithium-ion battery, has recently been made available to the marine market by Mastervolt (mastervolt.
Lithium-ion batteries are not new, either. They're found in rechargeable devices we use every day, such as cell phones and laptops. What's new about the MLI 24/160 Li-ion battery, the latest offering from Mastervolt, is its application and capacity. Indeed, the MLI 24/160, with its impressive capabilities, may change the very nature of marine electrical and charging systems.
Mastervolt's MLI 24/160 is up to 15 percent more efficient than traditional lead-acid batteries, allowing for shorter charge times and greater energy when compared with other batteries of its weight and size. The recommended depth of discharge of this battery is 80 percent, in contrast to 50 percent for traditional batteries. This means that if you replaced an existing battery back with MLI 24/160, you would immediately gain 60 percent more usable energy.
The MLI 24/160 is equipped with a built-in communication port, allowing it to be integrated into and monitored by Mastervolt's MasterBus network. The battery's dimensions are perhaps its most attractive aspect: a 24-volt (yes, 24 volts), 160 Ah case measures 24 by 8 by 14 inches and weighs 99 lb.
It can be mounted in any orientation, it will deliver 1,600 amps for 10 seconds when called upon for starting or surge loads, and it has a claimed life in excess of 2,000 cycles, assuming an 80 percent discharge rate. The self-discharge rate is just 3 percent per month at 68° F.
In addition, there's no memory effect, meaning the MLI 24/160 can be repeatedly discharged heavily or lightly without any ill effects, and there's no limit to the number of batteries that can be paralleled for large house banks.
Steve D'Antonio
--- In electricboats@
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> Has this new battery been assessed for it's use in electric propulsion yet? I searched the messages and did not find a reference?
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> http://www.mastervo
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> Has anybody seen a price advertised?
>
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