Not sure which
battery you are quoting for the above info?
No matter, the manufacturers (Ritar) Data Sheet for the Lead Carbon Batteries from Alpha
Battery is available on this link -
https://www.alpha-batteries.co.uk/1...rbon-gel-ultra-deep-cycle-battery-exp12-160c/
Within that Datasheet, there is a chart of the correlation of Expected Charge Cycles vs the Depth of Discharge (DoD = 1 - SoC. e.g. 80% DoD means you take the
battery down to 20% SoC).
Below is that charge grabbed in a screenshot
View attachment 130676
I would say the numbers are pretty good and maybe on the upper side of optimistic, but even if you halved them you get both a performance way better than something like a Banner Bull say and even if you discharge lower than the "never go below 50% mantra" oft repeated, you still get a very good peformance.
With my Lead Carbons I don't worry in the slightest if they drop below 40% SoC (I have 30% as my minimum) and the Lithiums can drop to Zero% if they want. So far in around 3 years, according to the
Victron BMVs I have done under 50 cycles on the batteries (and the BMS on the Lithium is from Memory in agreement give or take) so I care not if a
battery is quoted as 3000 cycles or 1500 cycles or 1000 cycles -it will make very little difference I would think for me.
View attachment 130678