That document is an informal spec sheet that has been replaced by the full datasheet. I’m not allowed to post the datasheet but here’s the discharge current rating section. Notice that it does not say continuous but that doesn’t matter much since any temp-limited rating means it cannot be a true continuous current rating.
Looking at the cycle life sections in the datasheet shows a loss of 10% of guaranteed capacity just going from 10A discharges to 20A discharges. The jump to 45A would cause an even greater drop in capacity.
I never said that the cycle life would be greatly affected though. Only that the datasheet said that the cycle life would be shortened.
“Thermal rating”?
A higher current rating so it runs cooler than the P42A?
For the P42B there is a decent drop in cycle life for a jump from 10A to 100W temp-limited discharges (around 35A).
Thermal characteristics. It has the same current rating but runs much cooler. I posted the graph and you can see The p42A hits 80c at around 87W while the p42B hits 80c at around 110W.
