[Milsurplus] BB-490/U Update

[Patricia Watkins]

Hi All,

Just a quick update on my findings on the above batteries.  I carefully =
removed the cover on the battery with the 6v section and found that =
there are two sets of batteries in there.  12 individual cells set up =
for two 12V units.  Each cell has a small plastic plate covering a =
synthetic rubber cap.  The cap seals the filler hole for adding the =
distilled de-ionized water to each cell.  (will take some pictures).  I =
added 3 cc of water to each cell (including the unit that was measuring =
12V and waited a few days.  Then hit the battery with a charge again.  =
Both cells are now at 13.6V.  I put a 50 Ohm load on and it took 24 =
hours for the voltage to hit 12V.  I think that's around 6 amphours of =
capacity.  This is the first charge cycle on what was a definitely bad =
battery.  Looks like these units are just a bit dry, and not really =
sulphated.  Means we can get them back to operating condition.

John  WD5ENU/A45XV

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