Is any of this even cost effective yet? - Page 29

 I love to interject (WInston was doing a fine job getting you into a corner)
but...

I would hope you are not multiplying a indicated 21.9 amperes x 22.3 volts
(an obviously dead battery)
and getting your 3kW.


It's been running continuously for over 2 years, and the CS130 does have
a voltage regulator that shuts off the current to prevent overcharging.
I can find out what the current battery status is...

Since the setup switches out battery banks every hour, that could be a
reason why it has lasted so long. Deep discharging batteries will
shorten their useful lifespan.

Battery status is as follows:

Bank A 22.3 volts
Bank B 23.4 volts

Though this really doesn't mean much. I should do a proper load test to
see how much amperage these batteries still have left in them. They are
sealed lead acid. I got them from a couple of discarded UPS backups.

Using a digital ampmeter, the CS130 is only putting out 21.9 amps. It
should have been higher, close to 30.

Battery load status:

Using a car battery tester, all my batteries failed. Maybe I should
start shopping around for a new set of lead acids that have access to
the cells for maintenance. The date codes on my batteries suggests they
were made in March 2006. Not too bad results from a 5 year old battery.

Jim Rojas

  Josepi wrote:

Josepi, no offense, but you are not following the threads...

Jim Rojas

 "Lithium Technician"?

I thought all technicians were human, to date. What size cells do you take?


I've been a Lithium battery technician and know how hard it is to
accurately integrate the pulse current waveform in switching chargers.
jsw

 
Techs are superhuman. We do what engineers can only dream of.

 I do not know where you are but in Canada we have another hybrid
"technologist". With one year less schooling and mostly living in the field
our jobs are to interface the Electricians and the Engineers and make the
damn thing work, and then correct the Engineer's drawings to actually look
like (as we guessed) what the concept requires. This is all stamped by the
Engineer to look as if he designed it. This level of training was created
years ago to accomodate the expertise in my field of endevour and releive
the cost of higher paid Engineers with no field experience.



Techs are superhuman. We do what engineers can only dream of.