I noticed something strange on my bots. I have a lvl104 with about 15k wins and a decent ratio. When dumping energy onto this bot, every single day this month I have gotten between 3900-4000 energy from 200 fights.
I have a bunch of other lvl104 bots very low ratios/wins but with exactly the same equipment and stats. None of them have ever managed to dump over 3800 in 200 fights. This is with the same buffs and 200 straight losses.
Initially I thought it was because of repair costs getting out of control but it's not that because I checked the kudos transferred/lost over each dump. The high ratio lvl104 always gives more energy whether the lower ratios had more cash initially or not. This means the higher ratio bot with lots of wins is lasting around 6-10% longer in battles for some reason. (because I can dump 6-10% more energy in the same number of fights, all other things being equal) I don't see any explanation for this. Strange stuff.