|
|
|
|
|||||
|
||||||
From: Arild Jensen (no email)
Date: Mon Oct 01 2007 - 13:15:54 EDT
> -----Original Message-----
> From:> John Tones
> List - I have had a bit of experience with "Pulse Savers" of various
> breeds and found that they appear to be best suited to battery banks
> that sit on trickle charge for long periods of time..
> YMMV
> John Tones
REPLY
In addition to John's experience I would like to add that batteries which
are seldom fully charged or else are discharged over a longer period of time
say three days to a week then rapidly recharged from a genset to about 80%
full also need help in removing residual sulfation. A third situation
involves batteries left sitting unused during off season storage.
Lead sulfate forms as a result of discharging process.
Within 24 hours the soft lead sulfate hardens and becomes increasingly
difficult to reverse with charging.
After three days to a week the early sulfate is totally hardened and will
not reverse back into lead oxide and sulphuric acid except under prolonged
float stage charging. This seldom happens. This is also why most batery
manufactures of flooded cells recommend careful periodic equalization every
couple o fmonths depending on usage.
The controlled over charge is necessary to eliminate as much lead sulfate as
possible.
The pulse technology is a better and more gentle way to eliminate the
hardened sulfate tnan a controlled over charge which stil causes the batery
to boil. Pulse technology can safely be used on sealed and AGM batteries
whereas equalization cannot.
Pulse technology only deals with sulfation. It does not repair or fix other
battery problems such as plate shedding or cracking. It does not rejuvenate
worn out plates than have been used and cycled extensively. It can't repair
plates warped from heating due to over charging,
Analysis of discarded batteries show that 80% of "dead" batteries are
sulfated, not actually damaged in other ways.
These are the likely candidates for restoring to useful service using pulse
technology.
regards
Arild
_______________________________________________
http://lists.samurai.com/mailman/listinfo/trawlers-and-trawlering
To unsubscribe or modify your subscription options (get password, change email address, etc) go to: http://lists.samurai.com/mailman/options/trawlers-and-trawlering
Trawlers & Trawlering and T&T are trademarks of Water World
Productions. Unauthorized use is prohibited.
|