Quote:
Originally Posted by NeilBlanchard
The Dolphin ^^^ has 200 miles worth of *lead* acid* batteries, that weigh 1,984 pounds. Can you imagine how many miles it could go on say 700-900 pounds of modern lithium cells?
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Which cost 5000 to 10000 usd. Or more, depends on technology.
You don't take the point. We could take a toyota prius, add to it plug-in kit with 2 to 4 kwh of energy which will add 100++ pound of weight, or we could add a bag in empty trunk of ~400 litres of capacity to hold 1.36 kw/h energy. Or make a boot tail to hold 1000 litres of gas to hold 3.4 kw/h of energy. Pure methane will give close to 10 kw/h per cubic metre, assuming engine conversion ratio of 31% it will give 3.4 kw/h of energy at the whells.