That seems to be common to several types of battery chemistry. I remember a guy who raced an electric drag car said his fastest runs where never the first of the day. The batteries were stronger after getting cycled a few times. I dont know what type of batteries he has. People that fly racing drones with lipo batteries seem to feel they have more power after a few cycles. Thats pretending temps are consistant. Usually the first cycle of the battery will be in the morning during cooler weather.
I think the trojan site has a graph the shows the flooded battery reaches it max capacity after 100 cycles. Thats quite a lot when its not inside a golf cart getting used each day. 100 cycles for me will take years.
