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Deep Cycle Battery brands, types, systems & installations
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<blockquote data-quote="condor22" data-source="post: 443566" data-attributes="member: 1932"><p>Lead Crystal batteries can be fully discharged unlike an AGM, however there is a cost;</p><p></p><p>The advertised cycle life is;</p><p></p><p>6000 cycles @ 20% depth = 16+ years</p><p>3800 cycles @ 50% = 10+ years</p><p>1400 cycles @ 80% = <4 years if cycled at these rates every day.</p><p></p><p>So as you can see, the more you use of capacity the lower the number of cycles, however I've not found how long they last if dead flat.</p><p></p><p>Conversely an AGM</p><p></p><p>3000 @ 20% = 8.2 yrs (I got 10years out of my last replacement)</p><p>1300 @ 50% = 3.6 yrs</p><p>800 @ 80% = 2.2 yrs</p><p></p><p>So the mean difference is that you will get a similar life from a lead crystal @ 50% discharge as an AGM @ 20%. This means a smaller battery bank for a similar output and life approx. half. Or twice the capacity for the same size and life. Lead Crystal is cheaper per AH over life expectancy than either AGM or Lithium and you can use the same charger as an AGM although if you use a deeper cycle it will take longer to charge.</p><p></p><p>AGM = $$$, LC = +20-25% $$$ and Li = "A bank loan" <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="condor22, post: 443566, member: 1932"] Lead Crystal batteries can be fully discharged unlike an AGM, however there is a cost; The advertised cycle life is; 6000 cycles @ 20% depth = 16+ years 3800 cycles @ 50% = 10+ years 1400 cycles @ 80% = <4 years if cycled at these rates every day. So as you can see, the more you use of capacity the lower the number of cycles, however I've not found how long they last if dead flat. Conversely an AGM 3000 @ 20% = 8.2 yrs (I got 10years out of my last replacement) 1300 @ 50% = 3.6 yrs 800 @ 80% = 2.2 yrs So the mean difference is that you will get a similar life from a lead crystal @ 50% discharge as an AGM @ 20%. This means a smaller battery bank for a similar output and life approx. half. Or twice the capacity for the same size and life. Lead Crystal is cheaper per AH over life expectancy than either AGM or Lithium and you can use the same charger as an AGM although if you use a deeper cycle it will take longer to charge. AGM = $$$, LC = +20-25% $$$ and Li = "A bank loan" :) [/QUOTE]
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Outdoor & Recreation
Campers, Vans & 4WD's
Deep Cycle Battery brands, types, systems & installations
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