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A comment on Motorists have been stranded on a major interstate in Virginia since last night. Parent comment

Re:Motorists have been stranded on a major interstate in Vir... by sasawpg on Tuesday January 04, 2022 @07:40PM (#29803231)
I purchased a 20,000mAh “jump pack” for $120CAD two years ago to use with my boat. I’ve jump started it with no problems, and this was a Mercruiser 350. I’ve also boosted a car and a truck in -25C weather. They work great, are super portable and only weigh 2-3lbs.

Caveat - unlike a standard battery booster pack (lead acid), lithium battery does not take kindly to freezing temps, so it is useless to keep it in the car over winter. I wouldn’t expect to be able to start anything in the middle of winter up here unless it was kept indoors at room temp.

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Re:Motorists have been stranded on a major interstate in Vir... by B2B_human on Wednesday January 05, 2022 @12:41PM (#29812177)
Spoiler, it works.

I use a lithium booster battery pack for an old car I use, and have used the battery pack to jump-start my car multiple times on a freezing-cold day (sub 10f) while trying to locate a store with a new car-battery in stock.

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