Guys,
There have been a lot of messages and discussions on using EDTA. I decided to try it out for myself. The object of the test is a battery that I put out of commission 3 years ago because it could not hold its charge (red light on my batt. charger). When I diched out the battery it was 90% dry. So I topped with distilled water, the tension was 5.5V. So I ordered some EDTA and followed the instructions ; disolve in water and add 0.5ml per cell for a 12AH battery. Shake and leave it for a few days. Visualy I can see chips of coppersulfate falling to the bottem. This means the sulfate is comming lose from the plates. As it does not conduct electricity it does not do any harm. Now for the test, I hooked it up to the charger. Orange light good sign, after two days on the charger still no green light. So I decided to add an other 1 ml EDTA solution and repeat the treatement. Still no green light after 3 days. So far I had only been charging so I deceded to reverse the process and hooked up a 12W lamp for a night. In the morning the battery was completely depleted (0V). I unhooked the lamp and put the battery on the charger after two days I had a green light from the charger. If not completely, the EDTA tratement has made the battery usable again. I am now adding 1 ml EDTA solution to every battery I have. Just to slow down the sulfatation process. This is just my personal experience, yours may vary. Johnny-from-belgium. PS Glenn after correcting grammar and spelling, feel free to put it on the website.
