[Healeys] Chemical/gel filled battery issue.

[Simon Lachlan]

An (elderly one-legged) friend of mine has an electric buggy with which he
can get around our village and achieve a degree of mobility. He left it
switched on for about 3 weeks and totally drained its batteries. Now they
won't accept a charge and he's facing having to replace them and - because
the batteries are probably only obtainable through the buggy's agent - he
will have to pay about six times what they are worth.
They are sealed batteries. Not electrolyte and plate per a traditional car
and I gathered that they are filled with some form of vile gel. They sound
to be much like the batteries that I acquaint with boats....
So, moving on, I recall that someone on this list explained how similar
batteries could be revived despite their being "written off" by most
sources. Of course, I wasn't interested then and did not retain the
information......Can anyone advise?
Thanks, Simon.