RE: Sheer's Fuel Cell Rant

["Roger Stockton" <rstockton@delta-q.com>]

"The coulometric charging efficiency of sealed lead acid batteries is
typically 70%, meaning that you must put 142 amp hours into the battery
for every 100 amp hours you get out. This varies somewhat depending on
the temperature, speed of charge, and battery type."
http://www.powerstream.com/SLA.htm

This strikes me as false; certainly both the flooded and sealed PbA
batteries that I've tested have much better coulometric charging
efficiency than this, typically requiring <110Ah returned for every
100Ah removed.  The sealed PbA batteries (YTs) are more efficient than
the flooded PbA, in my experience.

Cheers,

Roger.