[ausev] Open Garage this Sat... 9am - 1pm

[Peace]

Interesting.  The guy who recommended the desulfator swears by them for EV lead-acid use cases.  He says that most leads start with some amount of sulfation due to sitting on the store shelf.  I may be mistaken, but in the discussion someone said that plate breakup could occur if desulfation isn't performed in time.  If you're interested in discussing more about this, head over to elmoto.net and look for user gasfreeearth.

I'm not sure exactly what you mean by isolated desulfators.  The BatteryMinder is supposed to be able to do its thing on a battery that is installed.  No disconnection of the terminals necessary.  Hook up one battery at a time (in-circuit) and let the desulfator do its job.  I might get one to try out and will report back if anyone's interested.

-PC


-----BrianLasseter wrote:-----

Desulfators are useful for batteries in regular cars, or boats... but
not so much in an EV.  Notice how in the FAQ you pointed to, it says
that sulfation mostly effects batteries with poor charging practices,
or batteries that are sitting.  In an electric vehicle, the batteries
rarely sit.  I use my car at least once a day... often times 2-3 times
a day.  I also, like most EV enthusiasts, keep my batteries full or
even floating when the car is not in use.

In my batteries you could see that most of the problem was the lead
itself.  It would break up, pit, and bits would be caught in solution
with the electrolyte.  My problem was due more to the extremely high
currents I used; I never owned the batteries long enough for sulfation
to take a good hold.

 Most desulfanators are not isolated, at least I had not found one
that was isolated, so desulfanating all of the batteries at once is
not currently technically possible (at least not with the products
that I have seen).  The other trick, of course, is cost.   Buying a
set of desulfantors for each battery will cost as much as a good
battery management system... and I think a battery management system
which will keep the voltage levels more even will buy you more battery
life than a desulfanator system.

That's my 2 cents.

-- 
TTFN,
Brian "Lasso" Lasseter