That's just a sales pitch from a company peddling its charger.
Then there's this:
""The alkaline batteries (which are generally based on the conversion
of MnO2 and Zn to Mn3O4 and ZnO) offer an excellent example of this
last point. Although the chemical changes at the electrodes can be
reversed, until recently alkaline batteries were manufactured only to
function as primary cells. Recharging one of these primary cells could
allow the battery to be reused, but the possible number of recharging
cycles for such a cell is very limited--it performs more poorly with
each recharge. More important, recharging an old-fashioned alkaline
battery is not safe. During or after a recharge, the battery might
generate enough hydrogen gas to cause an explosion. In their
rechargeable form, alkaline cells have undergone several changes. They
have been redesigned to allow for a more efficient reverse reaction,
they contain a catalyst to minimize hydrogen formation and they have
safety vents that prevent the buildup of excess pressure during
So - recharging standard alkalkine batteries isn't safe, nor is it
very efficient, given that the potential number of recharges is very
low, and the amount of available power decreases with each cycle.
Considering how cheap even the high-quality rechargeable batteries are
getting, I can't see why anyone would bother messing around with
trying to recharge disposable batteries.
LOL good one.
Like I said before, a dry cell (or any battery for that matter) will
partially recover just by letting it sit for a while.
In addition to the chemical reaction running it's course...a dry cell
will make a transition from "moist" to "dry".
If you poke holes in the side and soak it in salt water you actually can
gain some charge...but you'd have to tape it up and still it would
probably leak. Might be useful on Gilligan's Island though.
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