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In this two-part series, we’re looking at why batteries fail, especially during extreme weather. We know extreme temperatures can be tough on automotive batteries. But there are other factors that can cause batteries to fail any time of year.
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If they boiled out, you almost certainly did damage; how serious depends on luck. Sometimes batteries can partially recover but you definitely reduced their capacity - how much can be best determined by load-testing. Alternatively, you can get an idea by checking sp gravity once recharged but that isn't as conclusive.
Absolutely check each cell with a hydrometer as one bad cell, which is almost inevitable in this scenario, will kill the entire bank.
The cold weather is definitely helping battery sales!
BISMARCK, N.D. - It happens a lot this time of year. You go out to start your car in the morning and the battery is dead.
The staff at O'Reilly auto parts in Bismarck say sales have spiked for car batteries, fuel additives, and anything else people need to keep going in winter, which comes in handy for a lot of people.
"I came up here from Florida some years back. I never had those kinda issues, but here in Bismarck I've definitely had some issues like that, and thankfully I've had some help," said David Baxter, Bismarck resident.
O'Reiley says it's selling 10 batteries on a slow day, maybe 20-30 batteries a day on colder days.