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Would an AGM battery perform better in the cold? (self.asklemmy)

submitted 4 days ago* (last edited 4 days ago) by Corkyskog to c/[email protected]

19 comments fedilink hide all child comments

My car sometimes doesn't get driven for a week at a time, between that and winter cold I am having constant issues with it dying and needing to be trickle charged. My engine also seems to want a lot of juice for it to turnover.

Would an AGM battery last longer between charges? Would it perform better in the cold? Is there any better solution than just making sure some regularly drives it a few times a week?

Edit: It seems Costco lists an AGM for my car cheaper than a lot of regular batteries, so it seems like I will find out either way... But I am still curious if people think this will solve my charging problems.

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[–] Cheradenine 5 points 4 days ago (1 children)

Besides what others have said. Have you changed your oil? Cold oil is slow oil and makes starting harder.

A cold weather oil will move more freely and do a better job of lubricating the engine during the hardest part of the run cycle, the start.

[–] Corkyskog 1 points 4 days ago (1 children)

Yeah, oil is not the issue. It needs a lot of juice all the time. Even in the summer if its not driven at least once in a week will have a good chance of being dead. This has been over like 3 batteries in the last 5 years.

[–] [email protected] 8 points 4 days ago (1 children)

Sounds like you have a parasitic draw somewhere

[–] [email protected] 5 points 4 days ago

I concur. Get the alternator checked. The diode might be giving up the ghost and causing reverse-current, draining the battery even while off.