[dtbaker]

ahhhhhh, I understand..... the hope that you can revive 'dead' batteries at least for a while is a good one, more constant monitoring and switching is more than I want to do just from a use of time standpoint. different goals.

soon however, I will probably be looking at trading out my FLA for a set of Li, and I hope I can find somebody local that wants a matched set that will still have 'some' life left for short range use before re-cycling'em. I find that I need a dependable 20 mile range to get average errand day done, and would prefer a comfortable 30. So when my pack drops a little more I am going to have to replace..... perhaps selling at good discount to a local EVer on a tight budget with lower range requirements.

[david4w]

Quote
Although it may not seem like it chemicals are the method of LAST resort! A normal electrical desulphator is far superior to chemical methods as there are no side effects!
Unquote

Dear Ryan, Before I comment on your post as above, I thank you for your rich amount of experience you shared with us in reconditioning battery.

I have a different opinion about evaluavtion of < chemical method and electrical method.>
I am currently involved in selling reconditioned batteries . We select carefully the old waste batteries by checking its charge or voltage. Then we put water and our chemical( called ECO2) . Then we connect it to the battery. Most of our batteries had some degree of charge before desulfation. More than 90 percents are restored to a performing battery. Then we charge it to full and discharge it. When the discharge minute time is very short like les than half of the number of capacity figure(Nominal ampere hour), we discard them to defective products.About 20 percent is out in this process again. We save more than 70 percent good batteries out of waste batteries we screened. From the process, we see chemical method and electrical method is complimentary. Nothing is better or worse than the other. Unfortunately most of chemicals known until this time seem too weak in its effect. Weak chemical might give impression to the general public that chemical is not as good as electrical method. I find that chemical desulfation lasts long period of time( seceral months to a year or two). Please read from ( www. batteryequaliser.com ) . We find our chemical lasts for more than 6months
Electrical desulfation stops immediately the minute electricity is off.
Chemical desulfation continues more than 6 months. As we all know
a battery performs 'good' even when the charge capacity is not full as a new battery. So a reconditioned battery can perform as long as it maintains the sulfated portion to a certain level.
From my experience,I can say
1) electrical desulfation only to a sealed battery( like MF type) is not as good as expected because of short water.
The water must be refilled and electrical desulfation executed.
2) Any additional chemical desulfation will help even though there is difference in its effect.

[epssty]

i would like to buy some eco2

epssty@gmail.com

[david4w]

Originally Posted by epssty

i would like to buy some eco2

epssty@gmail.com

Surely you can buy sample of ECO2. I recommend you to prepare your waste batteries first( 10-20 pcs) We can supply you a bottle of ECO2 at USd60 ex factory. Shipping cost will be calculated if your address is known to us by your email to mine: davd@chol.com

Sample acn be prepared within a few days.
Regards
C.KIM

[Dave Koller]

I knew a person that Drilled a hole in the side (bottom) threaded a small fitting in the hole and ran it first to a bottle to empty acid - then attached another small plastic pipe to a water cap and a pump to a large container of his "secret" mixture and ran it for days to restore his batteries.. he had some filter screen in line - and all I remember is he added new acid and they were "as good as new" (his quote)... I suppose there are ways...



P.S. he of course sealed the hole with some kind of plastic goo!

[ElectriCar]

So I guess vpoppv has forgotten about posting his results. He's had the sample a while now, surely long enough to try & post results.

[vpoppv]

Originally Posted by ElectriCar

So I guess vpoppv has forgotten about posting his results. He's had the sample a while now, surely long enough to try & post results.

Actually, I had 11 batteries stolen right out of my driveway shortly after receiving my sample, 3 of which I had just started testing.
The only thing I can report at this time is that I had one battery in my pack that wouldn't finish charging- I had to turn off the charger. I treated that battery with ECO2 on July 30th. The problem persisted for a while, but the charger (Duracell 12 amp smart charger) is able to shut off on its own now(though it still takes the longest to charge of the 6 batteries in the pack). So for that one battery, it has shown an improvement.
There is one thing that I can say for sure about the care you will receive from Mr. Kim who provided the sample though: he is incredibly knowledgeable, responds immediately to questions, and will send large amounts of information. While I am personally convinced of his product's claims of battery rejuvenation, I don't have the concrete evidence I would like to have from a series of tests conducted on several batteries.

[david4w]

Originally Posted by vpoppv

Actually, I had 11 batteries stolen right out of my driveway shortly after receiving my sample, 3 of which I had just started testing.
The only thing I can report at this time is that I had one battery in my pack that wouldn't finish charging- I had to turn off the charger. I treated that battery with ECO2 on July 30th. ----------------While I am personally convinced of his product's claims of battery rejuvenation, I don't have the concrete evidence I would like to have from a series of tests conducted on several batteries.

Dear VPOPPV, Thank you for your posting. As I am in this business , I may mislead scrupulous forum posters with my prejudiced information. If necessary, I would like to send one of my PROCHARGER( my electric desulfator ) to you so that you can test your batteries and post the results. I will ask you to use my PROCHARGER for 6 months for free of charge. I will absorb any shipping cost to you. You can return it after test . You may return it shipping cost for my account.
THe reason I suggest this is that you can test my ECO2 material the best way when you use my PROCHARGER.
We supplied this device to 3 Korean factories ( 50+ 120+ 30 pcs)
The only thing I ask VPOPPV to do is to report his result based on his experience and evaulation. I think he is very well versed in battery matter also.
I supplied to two other volunteers free ssamples. Disappointedly, I have not gotten any comment from them. VPOPPV reported me every detail.
Thanks for all.