Join Date: 5th March 2009
Thanked 11 Times in 10 Posts
Do you mean what's the overall life of a battery, or how long can one expect it to keep its charge between drives - or both?
When there've been questions before about overall life, I've suggested that five years is reasonable (my battery was almost knackered at that time), though others have been a bit more optimistic, reckoning six or seven years might be expected.
When it comes to limited use, one thing to do is turn the radio off, and the winking alarm light must consume a little power. Cold weather means that it takes more power to start the car; at this time of year I don't use the car much, but I do try to do a drive of at least 15 minutes once every ten days or so. In fact in the past ten days all I've done is move the car in and out of the garage twice and down to the supermarket (all of a mile) twice, so I'm conscious of the need to take it out for a bit longer fairly soon.