Quote:
Originally Posted by jbach36
Kent Bergsma of YouTube fame was touting the Ctek battery charger a few years ago. It has a refurb mode that sends electrical pulses to knock off the sulfate or whatever it is, off the plates.
I don't know if it's helped my battery extend its life since it's only 2 years old. Ctek recommends that you do a refurb once or twice a year, I think.
The Ctek was the best out there when I bought, but maybe there's newer/better technology out there, I don't know.
1991 300d, 210k
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Every now and then Ctek similar charger turn up at discount stores, very popular on the forums here - seem to work well, but they will not charge below a certain voltage as battery not recognised.
CTEK copy battery charger deal - S2Forum - The Audi S2 Community
