[RE-wrenches] High amp charge to desulphate

Ron Young solareagle at solareagle.com
Sun Jan 10 20:32:32 PST 2010


Some interesting things to consider, thanks everyone!

Ron

On 10-Jan-10, at 4:20 PM, James Surrette wrote:

> Hi Ron,
>
> Given the time in "storage" the cells will be severely sulfated and  
> will not accept much current initially - probably 28A max (1400x2%)  
> and 70A (1400x5%) will suffice once current is accepted.  A  
> standalone "unregulated" charger or constant current would be best  
> to reclaim these or at least get things started.
>
> Regards,
>
> Jamie
>
>
> James Surrette
>
> Surrette Battery Co. Ltd
> 1 Station Rd.
> Springhill, NS, CAN
> B0M 1X0
>
> Direct: 902.597.4027
> Fax: 902.597.8447
>
>
>
>
> >>> Ron Young <solareagle at solareagle.com> 1/10/2010 5:52 PM >>>
> I have just acquired a 24v set of 1400a/h 2v cells that have been in  
> storage without a charge for several years. They were connected up  
> in a system that was never turned on (long story). I believe these  
> batteries can be recovered if I can get a high enough amp charge  
> into them. The battery mfg. recommends putting a 200 amp charge on  
> until internal temp rises to 40 degrees C then let them cool and do  
> it again, maybe 15 times, to blow the sulphates of the plates.  
> Unfortunately I don't have a 200 amp charger but I do have an  
> Outback 3524 inverter with an 85 amp charger. I'm wondering if I can  
> force the inverter to maximum charge to accomplish this. I hooked  
> the inverter up but the batteries only have about 10.5 v output from  
> the batteries (hooked up 12 in series for 24v). For this reason the  
> Outback won't power up. I am wondering about using a standalone  
> charger to provide power to the batteries -- which will also provide  
> power to the inverter -- and allow it to come on and charge. Anyone  
> suggest a better way?
>
>
> Ron Young
>
>
> This email and its attachments have been scanned by iConnection E- 
> Mail Firewall for viruses, spam, and malicious content.
>
> The information transmitted in this email is intended only for the  
> entity or person to which it is addressed and may contain  
> confidential/privileged material. If you received this in error,  
> please contact the sender and delete the material from any computer.  
> Any review, retransmission, dissemination, or other use of this  
> information by persons or entities other than the intended recipient  
> is strictly prohibited. %^^%
> _______________________________________________
> List sponsored by Home Power magazine
>
> List Address: RE-wrenches at lists.re-wrenches.org
>
> Options & settings:
> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>
> List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
>
> List rules & etiquette:
> www.re-wrenches.org/etiquette.htm
>
> Check out participant bios:
> www.members.re-wrenches.org
>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20100110/a95f6589/attachment-0003.html>


More information about the RE-wrenches mailing list