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give me a large capacity conventional battery anytime
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Originally Posted by getty150
I'm pretty much set in the category of battery for the "X" for this winter...
But out of curiosity I'm reading that we could be mis lead in focusing solely on CCA=Cold Cranking Amps.
But we (especially BMW owners) should have the equal focus on the RC rating=Reserve Capacity.
Could this be true! Seeing that many have a BMW sitting for a considerable amount of time during winter mo.
Sent from my TMRV075G using Tapatalk
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from https://www.relionbattery.com/blog/b...240%20minutes.
Quote:
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the average reserve capacity of a 12V 100Ah lead-acid battery is around 170-190 minutes, whereas the average reserve capacity of a 12V 100Ah lithium battery is about 240 minutes
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When I bought a Duracell lead-acid battery from Sam's Club recently, I opted for the larger Group 49 H8 size, over the smaller batteries that might fit, just for the better ratings. The lead-acid Group 49 H8 has a reserve capacity of 185 minutes, better than the 120 minutes of an H&, or the 140 minutes of a Group 94R (possible fit). In fact, the lead-acid Group 49 H8 I bought has a higher reserve capacity than the Duracell Group 49 H8 AGM (only 140 minuted RC)! For $60 less, to boot. Same 36 month warranty, too.
I know that AGM's (or Lithium) batteries are favored now, but I've had better luck with conventional batteries over 59 years (bought my first battery in 1965, for my '56 Chevy). Unless you let them freeze (unused & unattended over a winter...twice on our old travel trailer), they have lasted as long as the one AGM battery I still have (on my 4x8 camping trailer, since '12), and much longer than the two GEL racing batteries I used in my old drag car. I've never tried a Lithium battery, nor do I want to chance my X self-igniting, if one was installed (look at all the EV fires that have been reported).
Reserve capacity might be needed more in colder climes, especially if your car doesn't start easily, but my M54 does start easily, and it doesn't get cold here for long, and additionally, I always have a battery charger/maintainer hooked-up, as well.
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01 BMW X5 E53,3.0i-5L40E, 7/13/01
topas-blau,Leder-grau,"resto-project car"
Here:
14 Lexus ES350,3.5L-U660E
09 HHR Panel,2.2L-4T45E
04 Chevy 2500HD,6.0L-4L80E
98 GMC Sierra 1500,5.7L-4L60E
Gone:
66 Chevelle Malibu 2dr ht.,327>441c.i.-TH350>PGlide/transbrake
08 Cobalt Coupe,2.2L-4T45E
69 & 75 C10s,350c.i.-TH350
86 S10,2.8L-700R4
73 Volvo 142,2.0L-MT4
72 & 73 VW SuperBeetles,1.6l-MT4
64 VW,1.2l-MT4
67 Dodge Monaco 500 2dr ht.,383c.i.-A727
56 Chevy 210 4dr,265c.i.-PGlide
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