Originally Posted by Dockhead
Even with a genset, you're not going to get into Category 1 if you are off-grid -- that is, if your boat is not kept on shore power most of the time. You'd have to run your gen set all day long on a regular basis to do that, which is just not reasonable.
I am in Category #3, mostly, since my boat lives on a mooring and I rarely have shore power while cruising. I do get a really good full charge if I motor
, but here in the English Channel
we almost always have wind
so I'm rarely motoring anywhere. I run my genset once or twice a day when I'm anchored or on my mooring, but hardly ever get the batts over 80% that way before it's time to shut it down again.
I do sometimes go into port just as an excuse to leave the batts on charger overnight, but I would not say that I average a full charge each and every week.
I bought a Honda
EU100i charger as a backup to my genset, but actually mostly just to run all day on my last day aboard before leaving the boat on the mooring for a few weeks, so that I am leaving the batteries with a nice full charge without knackering my diesel
genset with a long low-load run.
All this of course is utter nonsense which we will not suffer once Lithium FePo4 batteries are ready for prime time. I can't wait!
Ready now but only to 6 volts.
This type of battery
technology is used on the One Laptop
per Child (OLPC) project
. The batteries are manufactured by BYD Company of Shenzhen, China
, the world's largest producer of Li-ion batteries.
OLPC uses LFP batteries in its XO laptops because they contain no toxic heavy metals in compliance with the European Union's Restriction of Hazardous Substances Directive.
LFP batteries were featured on the November 5, 2008 episode of Prototype This!. They were used as the power source for a hexapod (walking) vehicle.
is used in the electric
cars made by Aptera and QUICC.
Killacycle, the worlds fastest electric
motorcycle, uses lithium iron phosphate batteries.
Roehr Motorcycle Company, uses a 5.8 kW·h capacity LFP battery pack to power its supersport electric motorcycle.
LFP batteries are used by electric vehicles manufacturer Smith Electric Vehicles to power its products.
Minneapolis Electric Bike and Chicago Electric Bicycles use LFP batteries.
BYD, also a car manufacturer, plans to use its lithium iron phosphate batteries to power its PHEV, the F3DM and F6DM (Dual Mode), which will be the first commercial
dual-mode electric car in the world. It plans to mass produce the cars in 2009.
In May 2007 Lithium Technology Corp. announced a Lithium Iron Phosphate battery with cells large enough for use in hybrid cars, claiming they are "the largest cells of their kind in the world.".
Some electronic cigarettes use these types of batteries.
Shorai Inc. makes lithium-iron batteries for a variety of powersport vehicles (motorcycles, ATVs, etc...)
Rimac Automobili have developed an advanced LFP battery system with integrated battery management and liquid cooling
systems, primarily for their Concept
One electric supercar which will enter production but also for commercial
availability of the battery system.
RC model cars may use these batteries, especially as RX and TX packs as a direct replacement of NiMh packs or LiPo packs without need for voltage regulator
, as they provide 6.6v nominal voltage over 7.4v of LiPo packs, which is little higher and may require to be regulated down to 6.0v. With thanks to Wilipedia