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http://en.wikipedia.org/wiki/Nickel%E2%80%93cadmium_battery#Vented_cell_batteries
http://en.wikipedia.org/wiki/Nickel%E2%80%93cadmium_battery#Vented_cell_batteries


datasheets for similar (100, 140 and 180 amp/hour versions) batteries to the STM 5-200:
[[File:Stmuk.pdf|thumb|saft battery maintenance manual for STM 5-100 and STM 5-140 flooded nickel batteries]]
[[File:Stmuk.pdf|thumb|saft battery maintenance manual for STM 5-100 and STM 5-140 flooded nickel batteries]]
[[File:STM5-180tech.pdf|thumb|saft battery maintenance manual for STM 5-180 flooded nickel batteries]]
[[File:STM5-180tech.pdf|thumb|saft battery maintenance manual for STM 5-180 flooded nickel batteries]]


forum post:
forum posts (good stuff copied below):
http://www.evdl.org/archive/index.html#nabble-td420847
http://www.evdl.org/archive/index.html#nabble-td420847


Hi Walt,
-------------------------------------------------------
 
According to Wikipedia, the TEVan came equipped with flooded Ni-cads, or
nickel-iron batteries and then later there were "advanced" lead-acids and
even some NiMH batteries.  The two responses I've seen to your note
seem to be making different presumptions about the chemistry of your
pack and (obviously) the answer depends on that quite a bit.
 
I've heard that flooded Ni-Cads can be killed by the accidental addition of  
I've heard that flooded Ni-Cads can be killed by the accidental addition of  
even a miniscule amount of acid.  On the other hand, the nickel-iron cells  
even a miniscule amount of acid.  On the other hand, the nickel-iron cells  
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anyone on the list has any experience with nickel-iron cells being sensitive  
anyone on the list has any experience with nickel-iron cells being sensitive  
to contamination from acid.   
to contamination from acid.   
Anyway, presuming you have flooded alkaline cells of some type, a
possible explanation for the behavior of your batteries would be said
contamination.  Did you use watering equipment that had previously
been used on lead-acids?
Best,
Joe
---------------------------
---------------------------
In reply to this post by Mark Dutko
I have an electric G-van (converted GM van) and it has a 216v string of 34  
I have an electric G-van (converted GM van) and it has a 216v string of 34  
air-cooled STM-5-200's.  I can't find any data on these on Saft's site, but  
air-cooled STM-5-200's.  I can't find any data on these on Saft's site, but  
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I'd love to hear more about your MRE-180 watering procedure if you care to  
I'd love to hear more about your MRE-180 watering procedure if you care to  
share, as it's probably pretty close to what these need!  
share, as it's probably pretty close to what these need!  
 
-----------------------------------------------------------
Thanks!
 
-Phil


http://www.osti.gov/scitech/biblio/6146954-dTx5Rd/
http://www.osti.gov/scitech/biblio/6146954-dTx5Rd/
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