EVDL Administrator <
[email protected]>wrote:
> On 10 Feb 2011 at 10:12, Dan Payne wrote:
>
> > using magnesium sulfate ... [or] draining the battery, rinsing ten
> > times ... Add new electrolyte ...
>
> These methods attempt to remove or bind lead sulfate that has been shed
> from
> the plates. The second one may help in some cases where the sulfate has
> piled up so deep in the bottom of the cells that it's shorting the grids.
> But by the time the battery is this badly sulfated, the active material
> remaining in the grids is very low.
>
> Adding fresh high-SG electrolyte will seem to increase the capacity (though
> to far from new level). However, if you actually try to use this capacity,
> you will be over-discharging the depleted plates. This will just
> accelerate
> the battery's ultimate demise.
>
> As I said, all the tricks for "fixing" depreciated batteries give temporary
> improvement at best.
>
> What's more, the drain-rinse-and-refill technique leaves you with a large
> quantity of liquid containing lead sulfate and other contaminants. You
> have
> to dispose of it in a safe, responsible manner. This is a signficant
> concern, especially when you're working with a half-ton or so of lead.
>
> These methods are a lot of effort for very little gain. The only real fix
> for a worn-out battery is replacement. (And no, I don't work for the
> battery business.)
>
> David Roden - Akron, Ohio, USA
> EVDL Administrator
>
> = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
> EVDL Information: http://www.evdl.org/help/
> = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
> Note: mail sent to "evpost" and "etpost" addresses will not
> reach me. To send a private message, please obtain my
> email address from the webpage http://www.evdl.org/help/ .
> = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
>
>
> _______________________________________________
> | REPLYING: address your message to
[email protected] only.
> | Multiple-address or CCed messages may be rejected.
> | UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub
> | OTHER HELP: http://evdl.org/help/
> | OPTIONS: http://lists.sjsu.edu/mailman/listinfo/ev
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.sjsu.edu/mailman/private/ev/attachments/20110210/c184f7b1/attachment.html
_______________________________________________
| REPLYING: address your message to
[email protected] only.
| Multiple-address or CCed messages may be rejected.
| UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub
| OTHER HELP: http://evdl.org/help/
| OPTIONS: http://lists.sjsu.edu/mailman/listinfo/ev