Hi I don't know if it make sense to ask this here or even think about it , I'm also sorry because I've made use of this site for years , just for play and never shared a thing , not had anything worth it , so I'm sorry my first topic is a question . Is it possible to do time switching between Raspberry PI boards / processors with PD ?

Im interested in Raspberry PI because they might be able to run on LiFePO4 batteries that are conflict free , and if i could get a 2nd hand one it would be limited conflict impact re gold copper and tin , but I was wondering this as a method of future proofing / expanding the usefulness of any I eventually bought, If I find out from them that it might be ethical.