Do you know if he*has updated it to*detail the inverter advancements during the past 15 years?
........but I seem to recall as much as a 0.5 voltage lower differential between max inverter*draw and resting voltage.
I'll watch the resting vs discharging volts*more closely next time I do a 50% draw down at anchor.
I use that page as a battery resource - I doubt that the inverter information has changed but the inverter efficiency doesn't really change what is happening to the batteries.* I think you'll be surprised how much difference there is between the voltage with a ~1000-1500 watt load and the real resting voltage.* We routinely see over a volt difference with 3x8Ds under a 12-1500 watt load.*
Somewhere I've got life cycle expectancy charts which show the effect of lifetime discharge cycles.* In summary they show that if you can use the top 25-40% of the batteries you will dramatically extend their useful life c/w using the top 60 or 70% of the battery bank.* I have my Trimetric set to show 50% discharge when we've really got more like 60% of the bank left and we have a hard and fast rule that we never let it get to 50% - more typically we'll start the gennie at 60% indicated which is likely closer to 70% SOC.* Currently we're well into our 8th year on Lifeline AGMs with no measurable deterioration in their condition.