Quote:
Originally Posted by emeritus
I never ever had any of the blue Ever Ready U2 cells leak in 8 years or so. Unfortunately the blue U2 cells were discontinued and their sealed replacements, as well as being 25% more expensive, were prone to leak with this treatment.
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The blue cardboard-cased Ever Ready U2 calls were almost certainly Zinc-Carbon (the traditional Leclanchee technology) which can tolerate a bit of 'recharging' without releasing their magic goo.
Ever Ready in the late-60s/early-70s went up a developmental dead-end with 'High Power' Zinc Chloride cells (which were easy to make on essentially the same production-equipment as the old Zinc-Carbon cells, so saving money over completely rebuilding the plants to use the rather-different Alkaline/Manganese technology like everyone else).
I wonder if your 'leak prone' U2-replacements were zinc-chloride? From memory these were sold as "Silver Seal" by Ever Ready.