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Which battery has longest life expectancy: lead acid, gel, Lithium ion?
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<blockquote data-quote="LouisF" data-source="post: 1135960" data-attributes="member: 20216"><p>The red text above and the green seems to be contradictory. Eish supports the green text, but not to my understanding the red?</p><p></p><p>"This is correct. LifePO4 batteries have around 6000 cycles, which is around 16 years assuming they're discharged daily. This drops to around 4000 cycles of you pump them to 100% and discharge to zero (zero being until they shut down on their own, which isn't really zero). I run mine down to zero mainly because 4000 cycles is still a decade, by then, something twice as better and cheaper will be available. Lead acid and gel on the other hand, never run them down, they will be very dead. Gel batteries should not be run below 50%, so you need twice the capacity to match LFP storage."</p><p></p><p>We have up to three cycles per day currently which equates to about a thousand per year BUT the drainage is far less than 100% of a 100Ah LiFe's capacity, much closer to 50%. From an earlier post I gathered tha a 50% drain is not considered a full cycle which means that three discharges of that per day would only be to about 300 cycles per year. Is that correct? In either case a LiFe would be much more economical the LA or gel in the long run.</p></blockquote><p></p>
[QUOTE="LouisF, post: 1135960, member: 20216"] The red text above and the green seems to be contradictory. Eish supports the green text, but not to my understanding the red? "This is correct. LifePO4 batteries have around 6000 cycles, which is around 16 years assuming they're discharged daily. This drops to around 4000 cycles of you pump them to 100% and discharge to zero (zero being until they shut down on their own, which isn't really zero). I run mine down to zero mainly because 4000 cycles is still a decade, by then, something twice as better and cheaper will be available. Lead acid and gel on the other hand, never run them down, they will be very dead. Gel batteries should not be run below 50%, so you need twice the capacity to match LFP storage." We have up to three cycles per day currently which equates to about a thousand per year BUT the drainage is far less than 100% of a 100Ah LiFe's capacity, much closer to 50%. From an earlier post I gathered tha a 50% drain is not considered a full cycle which means that three discharges of that per day would only be to about 300 cycles per year. Is that correct? In either case a LiFe would be much more economical the LA or gel in the long run. [/QUOTE]
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Which battery has longest life expectancy: lead acid, gel, Lithium ion?
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