Hardy,
My take away from that document is that every 100% DOD cycle reduces your battery's life by 0.28% compared to 0.1% for a 50% DOD cycle. While the total stored energy delivered is only reduced by 30% if one consistently uses a 100% DOD, the number of available charging cycles is reduced by more than 60%.
But this does show that a single complete discharge will not "kill" your battery bank. Something that is not covered in this document is the importance of recharging the battery bank as soon as possible, leaving the batteries completely discharged continues to reduce the battery's ability to store energy, reducing its lifespan further.
Fair winds,
Eric
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