I downloaded some specs. (Doesn't seem to be linkable, I didn't try.)
The S20 and S30 "stacks" are about 3.3 cuft, 260 lbs, 48 volts from 8
modules (I would not infer 6 volts/cell; picture unclear). Not intended
for vehicle use, too many lbs/watt, but cheap and safe ingredients. I
did not get prices, but it does seem they are available.
Charge and discharge currents are low, voltage appears "mushy"
(subjective -I did not compare to lead acid). Efficiency 80 to 90 % at
the currents they graphed. 2 KWH delivered when charged for 10 hr,
discharged over 20 hr. Max current 8 or 10 amps in the graphs.
Sounds good for solar, except maybe poor for heavy sustained loads. Not
clear about battery maintenance costs, probably low.
Ol' Bab. who were a engineer...
On 9/25/2015 7:49 PM, Jack Cole wrote:
Now we can clean power even when the sun isn't shining or the wind
isn't blowing. If we're going use renewable power in a big way, we're
going to need better battery storage. Because solar and wind are
intermittent sources of energy, they need to be backed up for when
they're not there, because, ...
http://flip.it/h6SCz
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