Here is East Penn data for the group 24, called a DC24 (typo labeled DC25), and the group 27 called the DC27. The East Penn DC-24 and DC-27 are the same batteries we call "marine deep cycle" and the same batteries West Marine labels as Sea Volt Deep Cycle.


If we compare DC-24 & DC-27's 80% DOD number of 200 cycles, to the previous chart at 80% DOD, we can see that indeed the golf car, L16, GC12's etc. are performing in the lab at 2-3 times better just as the battery engineer stated. East Penn also has data on the golf car and industrial batteries at 90F and even at 90F they still wallop the group 24, 27 & 31's butts in terms of lab cycle life.