rg12 said:
Now#2, pulling about 120A from a 17.5Ah 25R pack is abusing it as I've seen 25R packs being totaled after 10 month of use (not even daily) at 110A 20Ah which is bursts of 5.5C.
So I'm abusing my poor 7P 25R pack.
Yes, we agree with you. And you already know it : you are abusing your pack by high current draw. You have slim sporty looking electric 5 kW motorcycle which is feed by small battery pack. No wonder that you pay price for that. There is no free lunch.
If you don´t want to use Lipo for your hobby, than you need bigger pack. Or pay the price.
https://endless-sphere.com/forums/viewtopic.php?f=14&t=102682&p=1502617#p1502617
Spending time on higher temperatures is not sole degradation mode. There are much more possibilities how to abuse cell. High discharge is one of them, especially at lower temperatures, high charge currents, high DOD (depth of discharge), …….. We just don´t know what all you and your colleagues are using from this spectrum.