Certainly keeping them fully charged for a few days after charging is not going to do much long term damage, but overtime if that's a regular occurrence, those few days each time will start adding up to many weeks of your packs sitting in a fully charged state
BMJ Open (2014) 4:e005325
SeekPeptides members regularly report that switching to low dead space syringes extended their vial supply by 10-15% with no other changes
The companies that worked on this, then, in the 70s, the 80s, included Lilly and Novo, actually, but it wasnt until the Gila monster story kicked in in the late 80sI think this guy named John Eng in the Bronx was interested in why certain animals didnt need to eat very often and identified this mimic of the human peptide, but used for this lizards own purposes, exendin, which mimics GLP-1
You already experienced the loss