On Wed, 03 Oct 2007 03:51:38 +0000, Larry wrote:

If you're charging at 14V at 40A that equals over a half a
kilowatt of electric power that is converted into heat by the
charging process.

Not true.

Are you saying that all of the charging power is converted into heat?

What about the portion that is turned into chemical energy? Heat
represents *wasted* energy in the charging process and should be about
20% of the total, not 100%.