All it has to do is keep the battery below 4.2v. I don't see anything advanced in purposely cycling the battery. Li-Ion (li-po) chemsitry has not changed much i

All it has to do is keep the battery below 4.2v. I don't see anything advanced in purposely cycling the battery. Li-Ion (li-po) chemsitry has not changed much in the latest years. Alternatively if detecting power for prolonged times (say 24-36+ hours, it can keep the battery at 4v)