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Search took 0.00 seconds. Search: Posts Made By: Dockhead
Forum: Lithium Power Systems 11-06-2010, 10:37
Replies: 98
Views: 30,683
Posted By Dockhead
It's a perfectly legitimate argument -- cost be...

It's a perfectly legitimate argument -- cost be damned; it's so much superior that it is still the right way to do it.

I was not gripping that argument; I was just debunking the idea that the...
Forum: Lithium Power Systems 09-06-2010, 13:31
Replies: 98
Views: 30,683
Posted By Dockhead
Exactly, and a good point. The long-term cost of...

Exactly, and a good point. The long-term cost of LifePO is entirely hypothetical, and is likely to be much worse than the theory holds.

It means smiply that the financial case has not been made...
Forum: Lithium Power Systems 09-06-2010, 05:59
Replies: 98
Views: 30,683
Posted By Dockhead
You assume: (a) batteries economic life is...

You assume:

(a) batteries economic life is limited only by the quantity of cycles; and

(b) money has no value through time -- that is, you simply add up the price of lead acid-batteries...
Forum: Lithium Power Systems 07-06-2010, 09:37
Replies: 98
Views: 30,683
Posted By Dockhead
Yes, you are right, my math was screwed up. Sorry...

Yes, you are right, my math was screwed up. Sorry for any disinformation. Should be:

Lifepo:
$2500/200 amp/hours = $12.50 per nominal amp/hour.

Lead-acid
$200/110 amp hours = $1.80 per...
Forum: Lithium Power Systems 05-06-2010, 04:50
Replies: 98
Views: 30,683
Posted By Dockhead
Well, if we figure Lifepo batteries have twice...

Well, if we figure Lifepo batteries have twice the usable capacity of lead-acid, then these units cost $2500/200/2 or $62 per amp/h of lead-acid equivalent. That's not two or three times as...
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