[RE-wrenches] Concordes / desulphator / Lithium ion?

[Darryl Thayer]

Will you can still try the lowcost desulfator circuit I described. 120 Volt AC pass through a rectifier, and a current limiting resistor, connect to battery and give it an observed charge period like a week.  

The best price I have seen on an equivelent LiFeP to a T105 is $1500 per 24 volt stack, (a package of connected small cells), they have the problem of limited charge and discharge rates. The max discharge rate is less than a SLI battery  and recharge is not as survere limits as LA ) 

Darryl

--- On Sat, 2/13/10, Conrad Geyser <conradg at cape.com> wrote:

> From: Conrad Geyser <conradg at cape.com>
> Subject: [RE-wrenches] Concordes / desulphator / Lithium ion?
> To: "'RE-wrenches'" <re-wrenches at lists.re-wrenches.org>
> Date: Saturday, February 13, 2010, 11:59 PM
> 
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> A bit of a
> follow up on a thread of about
> three months ago where we had taken over an orphaned bank
> of Concorde 12V VRLA,
> 10 parallel banks of 4.  Thanks for all the input on
> this! 
> 
> 
>   
> 
> Efforts to
> revive via fixed amperage
> charging have not proven successful.  These batteries
> had been sorely
> abused.  A friend recommends to try a Pulse tech
> desuphator, swears by
> them.  Any experience with one of
> these? 
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> Going with
> some big Surettes for replacements. 
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> Maybe soon
> we’ll have some 1000 amp
> hour Lithium Ion cells and can put all this lead acid stuff
> behind us! 
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> 
> Conrad
> 
> 
> Cotuit
> Solar 
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> From:
> re-wrenches-bounces at lists.re-wrenches.org
> [mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Dana
> 
> Sent:
> Saturday, February 13, 2010
> 3:43 PM
> 
> To: '
> RE-wrenches '
> 
> Subject: [
> RE-wrenches ]
> Refractometer vs Hydrometer? 
> 
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> We have retired
> the Hydrometer and now use only
> refractometer. We have used them for 4+ years
> now. 
> 
> Our clients that
> do their own battery maint. Are so
> impressed that we have sold quite a few to that crowd
> too. 
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> They are safer
> and less intrusive: you only use a drop of
> electrolyte. 
> 
> Faster to use
> than a Hydrometer. 
> 
> Appear to be a
> more accurate reading VS. the Hyd…. 
> 
> Will check
> propylene and eythethlene glycol
> concentrations. 
> 
> Are 1/10 as
> susceptible to getting broken in a work truck or
> situation. 
> 
> 1/3 the size of
> a hydrometer and live in a padded case. 
> 
> Calibrated to
> distilled H2O and we have never had to
> re-adjust the setting. 
> 
> And best of all
> they are easy to keep clean and do not drip
> battery acid for days even if the hydrometer is washed
> out. 
> 
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> 
> A hands down
> winner in my book - $100-125 at your local
> plumbing wholesale. You may want to get an extra plastic
> flap lid, we have had
> a couple come apart. 
> 
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> Dana
> Orzel 
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> 
> Great
> Solar Works, Inc 
> 
> www.solarwork.com
> 
> 
> E
> - dana at solarwork.com 
> 
> V
> - 970.626.5253 
> 
> F
> - 970.626.4140 
> 
> C
> - 970.209.4076 
> 
> 
>   
> 
> I
> will be the shift in
> how the world uses power! - Dana Orzel 
> 
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> 
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