Storing a fully charged lithium iron phosphate (LiFePO4) battery has a minimal impact on its lifespan. In fact, it's recommended to fully charge LiFePO4 batteries before storing them for long periods of time. These batteries have a low self-discharge rate, typically losing 2% of their charge per month. However, fully charged lithium-ion batteries can be dangerous if left unused for long periods of time.
On Fri, Apr 26, 2024 at 12:43 PM Forrest Christian (List Account) < li...@packetflux.com> wrote: > > > On Fri, Apr 26, 2024, 1:02 PM Ken Hohhof <khoh...@kwom.com> wrote: > >> And I'm still using AGM batteries while all the cool kids are using >> LiFePO4 with BCMs, so definitely don't listen to me. >> > > The more I learn about lithium batteries, the more I feel that lithium has > relatively few advantages for standby applications. > > My most recent knowledge acquisition is the fact that if you want to > shorten the life of a lithium battery the best way to do so is to keep it > fully charged. The higher the average state of charge, the shorter the > life of the battery, although admitted there isn't much change in lifetime > between about 20% and 80%. But keeping them at 100% isn't great. > > If you want to store a lithium battery without charging, it's best to > drop the charge below 80% then store. > > In a standby application you really want to keep a battery at 100% which > shortens it's life greatly. A better choice would be to keep it at 80% > max but then you have other issues, not to mention the fact you now have to > buy a bigger battery array. > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > -- Thank you, TJ Trout Volt Broadband 209.480.3122 Cell
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