Well, never having had AGM’s I can only speculate a bit…
Since AGM’s are still considered a wet-cell (with lower internal resistance), then the 50% DOD (depth of discharge) makes sense, this to avoid adversely impacting a battery’s longevity.
What’s less clear to me is the slight discrepancy between available minutes at 8a, considering that either arrangement would end up with 300a/hrs (gross, 150a/hr net) since either way, watt/hrs are still watt/hrs (watts = power)??
So I’m confused as well, but in realville I doubt you’d notice any kind of difference…
FWIW, my 6v GC’s are now nearing the end of their life cycle, and after having some extensive ‘hands on’ empirical data with my *neighbors 12v 100a/hr Lifepo4 battery (31# cylindrical cell), compressor operation and solar harvesting, I decided on Li for the replacement and ordered a 200a/hr Lifepo4…
* Home-brew V-nose cargo trailer to hi-tech camper conversion.
Finally now getting some competitive pricing, so will be installing in the next few days (awaiting 0004 cables)…The two things that impressed me about Li (besides weight) is that the voltage stays relatively constant throughout the entire discharge (of nearly 100a/hrs – ideal for reactive loads where power factor (pf) really matters), running 11kbtu roof-top air conditioner, and that Li recharges uber fast even in marginal harvest conditions, this (unlike chemically sluggish WC) due to extremely low internal resistance…
Best Regards,
Phil
