Thread: What is this?
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Old 02-20-2019, 12:32 PM   #2910
Diaphone Jim
Junior Master Dwellar
 
Join Date: Sep 2007
Location: Northern California
Posts: 2,122
I well remember having new batteries filled at the parts store, but not that old filler.
I think it was made to be refilled itself by turning upside down and putting in a fresh jug of sulfuric acid, potent stuff best not spilled.
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