2018 replaced my battery at around 30k in early 2024 just based on age and our extreme temps in winter and summer
2018 replaced my battery at around 30k in early 2024 just based on age and our extreme temps in winter and summer
I don't know if there's any stock batteries left in the fleet from any 2015 or 2017's? I'll have to pay attention. What temps are considered extreme in Idaho?
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View my fuel log 2014 Mirage SE wussie cvt edition. 1.2 automatic: 37.7 mpg (US) ... 16.0 km/L ... 6.2 L/100 km ... 45.3 mpg (Imp)
Doesn't Idaho see swings like 95F in the summer to -35F in the coldest areas during winter?
Zero, 2014 ES Plus 5MT, written off but not forgotten.
Zero II, 2014 SE, 5MT, climate She's HOME now!
Shelby AKA "Cute", 2017 ES 5MT, A/C.
Mirage owners look at the world differently than everyone else, but in a better way
We're driving the Beetle of the 21st century, the greatest small car now available!
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View my fuel log 2017 Mirage ES PLus 1.2 manual: 39.0 mpg (US) ... 16.6 km/L ... 6.0 L/100 km ... 46.8 mpg (Imp)
Since our cars have a very mild sort of regenerative power function, the charging voltage is kept a bit on the low side. Because of that, the plus-plates may become phosphated a little early.
With that in mind, before you buy a new battery, it may very well be worth it to use the "rejuvenate" function of a modern charger. That should clear off a good part of the phosphate which will restore most of the capacity.
I recently tried that with my old replaced OEM Hitachi battery, and it is now almost like new. Could have saved buying a new one.
7milesout (06-21-2024)
I got about 4 or 5 auto battery chargers. Mostly just from over time, and 2 or 3 just because it was something like, "buy this battery, get a choice of battery chargers." And I like'em so I did that deal a time or 2. Another was just given to me with my current murdersickle. Anywho - I have yet to see one with a rejuvenate function. Sounds like a good feature. Maybe it's not a thing, in the U.S....
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View my fuel log 2020 Mirage ES 1.2 manual: 42.5 mpg (US) ... 18.1 km/L ... 5.5 L/100 km ... 51.0 mpg (Imp)
The rejuvenate function is usually standard on modern solid state charges. That function applies a higher charging voltage, usually about 16V to the battery for at least a few hours. Today's lead-calcium alloy batteries need a higher charging voltage than the phased-out lead-antimony batteries. Charging with "rejuvenate" makes the battery acid fizz like sparkling water, and the fizzing bubbles remove some of the phosphate from the plus plates. That makes the battery perform better.
Generally speeking, batteries should be charged in a well ventilated place, because the gas produced is a mix of hydrogen plus oxygen, being highly explosive.