Jim Yanik wrote:
mm wrote in
:

On 21 Mar 2006 14:29:32 GMT, Jim Yanik wrote:

mm wrote in
:

On Mon, 20 Mar 2006 18:18:18 -0600, (m Ransley)
wrote:

Charge it by voltage, I think 12.65v-12.8 is full charge, clean the
case good with soap and water a dirty case conducts electricity
alowing it to self discharge. Always keep it charged or the plates
sulfate and life is
I think it is fast recharges that cause sulfating.
I think you think wrong.
Better Google " battery sulfating" and see what you get.

example; http://www.europulse.com/eng/technology/index.shtml
My description was too short to be complete, but so is the description
on the site above.

On this site I think they've over simplified it because they are
trying to sell something "Patented pulse technology reverses sulfate
accumulation in your existing batteries. More importantly, it prevents
sulfation from ever developing in new batteries. By pulsing DC current
into the battery, it re-energizes crystallized sulfates deposited on
the plates and returns them to the battery acid as active sulfur
molecules. With the plates in the battery kept clean, it will provide
more power, faster recharge speed, cooler charging temperatures and
longer battery life."

It's 2AM. I'll try to get back with a longer ansewr tomorrow or the
next day.


From what I've read on the 'Net,sulfation is from both under AND
overcharging,and also occurs when the battery is left *unused*. The lead
sulfate is formed normally during discharge,is initially soft and dissolves
back into the sulfuric acid electrolyte when recharged,but eventually
crystallizes and does not re-dissolve under ordinary charging,and the
cell's internal resistance increases.

There are many sites covering LA battery sulfation,and they pretty much
agree with what I've said.


A sulfated battery might be helped with an "Equalization Charge".

Real good coverage at

http://www.batteryfaq.org