Quote:
Originally Posted by connal
Thanks Jens. The battery is a Varta and is only a month old. Do you think the fact it discharged so much might have permanently ruined it?
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Yes, I think a 12V battery with 8V on it is ruined. Anything less than about 12V won't come back in my experience. It will take a charge and look like it has 12V or so on it but that will quickly drop back - even if it is off the bike.
Bike alarms (for example) use the right amount of low current to deep discharge a battery over a few months. My rarely ridden ex-wife's SV650 killed 3 or 4 batteries in a row before I removed the alarm. Job done then and it was fine not used for months after that.
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