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With no warning symptoms my 2014 was totally dead Sunday morning, after last driving it the previous Friday. No indicator lights, no ticks, horn, trunk release, nothing. When I put a charger on, it seemed to show a fully dead battery, so I assumed it had succumbed to the Texas heat. But I left the charger on just to see what would happen, and about an hour or two later the charge indicator came on. After 12 hours charging, the car is now running fine. (But info, radio presets, even automatic windows had to be reset.) After a little bit of driving there's no hint that the battery was ever low.
I think I may have used the dome light on Saturday, but it's hard to imagine that if I forgot to turn it off it would so totally drain a battery overnight, right?
It's a MT with 22K. My concern is what caused the sudden drain -- and whether it'll happen again. And something makes me wonder whether it was actually some sort of computer issue, and the battery was never really drained (but was reset by the charger somehow). Is this possible? The charger has just an idiot light that's supposed to gradually change from yellow to green -- but to me it always looked just yellowish-green, so I couldn't tell what was actually happening. During the first hour on the charger, that light was not on at all -- only the red power light, which, I believe, indicated no charging. I did not try to start the car until it had been on the charger overnight.
Ring a bell with anyone?
I think I may have used the dome light on Saturday, but it's hard to imagine that if I forgot to turn it off it would so totally drain a battery overnight, right?
It's a MT with 22K. My concern is what caused the sudden drain -- and whether it'll happen again. And something makes me wonder whether it was actually some sort of computer issue, and the battery was never really drained (but was reset by the charger somehow). Is this possible? The charger has just an idiot light that's supposed to gradually change from yellow to green -- but to me it always looked just yellowish-green, so I couldn't tell what was actually happening. During the first hour on the charger, that light was not on at all -- only the red power light, which, I believe, indicated no charging. I did not try to start the car until it had been on the charger overnight.
Ring a bell with anyone?