Took ages to get into her tonight but managed eventually. Fortunately she started ok so I let her run for a few minutes to warm her engine and charge the battery a smidge. I don't like seeing her sat on the drive in this cold weather without getting a run. I do try to take her out for 30-40 miles on the weekend if I can. Hopefully that'll keep her alive until the light nights, warm weather returns.
Post by silverstone1991 on Jan 24, 2019 10:54:45 GMT
I'm not a big fan of just letting vehicles over on the drive. Cold engines produce a lot of nasty damp, corrosive spots in the cold exhaust. Far better just to leave it alone, and disconnect the battery if it appears to go flat over time. I read somewhere once that a flat battery will start to damage itself after about two weeks, so quite a long time. Typical self discharge of a disconnected battery in winter is likely to be 2-3% per week. If you find its flat when you put it back on after 3 weeks its probably knackered.
The are some quite clever battery cut-out systems that will protect you battery from being discharged to a "no start" level. They often have an override switch so you don't have to re-charge the battery. I looked into these for my twin battery fit on our Granvia so I could have 155Ah to start it and not worry about flatening it if we took it camping.
Don't know how you would stand if your insurance is based upon having an alarm on your car though. My old mk1's only had Cat 2 immobilizers.