JoelHacker;
No apologies ness. Anytime someone takes the time to offer advise I'm all ears.
And sorry for the way the size looks, these units are actually not more than (Using US measurements) 3.5" wide by 7" tall by 1" thick and are made up of 1.2vx1300mH "C" size individuals that are hot glued and solder in a 4x4 stack to get 19.2v@1300mH for portable powering of a certain medical device. and to get the current up to 40Ah is just making use of series / parrallel connections.
Since we have 1000s of these units and by many many rules, we have to swap out these batts on a 2 year rotation;I missed out on the 200 sets that went back to the recycler ( was on Vacation), I now am on the second swapping round. Just envision seeing 200+ 19.2vdc @1300mH NiCd packs setting around waiting to be used
Anyway by using these in different series / parallel versions we the poorer ones build our freebie backs to our own specs and away we go.
Using some of the math I've taken to get me here , the energy density for EVs the SLAs max at 25watts/Kg where as the NiCds are coming in at ( in real life testing) 40watts/Kg. The theoritical math show 60, BUT we all know theroy is just that.
I have pic of the PAV, and can post them later.
The company is doing a press release here is St. Louis, MO. USA and I'm not allowed to post these until a week later.
Still, if there is anyone interested in these, they love the 3 step smart chargers and free to cheap is always a good deal.
Thus the main reason for my posting about the use of these in other uses in place of the deep cycle batts for home / cottage use.
I do understand that at some point there will be a density trade off but haven't the time to do the math on where the break even point is.
Any of the wind guys have any info on this?
ALL: There is no handling fee, just the cost of shipping. Most everyone here has given so much to further my education, just pay the shipping and I'm good, they weigh in at 8.5lbs/set of 5 on a mailing scale. I use banks of 10 to bring the current upto useable DC levels.
Cheers!!
Bruce