Join Date: Jul 2009
Location: South Florida
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In reality, if the battery indicates it's bad, then knowing which cell(s) are weakest may not be helpful. However, if you can find battery acid you may be able to partially restore the weak cells, and for that you'd need the hydrometer unless you wanted to refresh all the cells.
Capt. Douglas Abbott
USCG/MCA IV/C.I./M.I. 500-ton Oceans
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