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 <solarea...@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
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