EB240 Charging Percentage for Optimizing Charging Cycles

What is the best way to charge and not impact number of charge cycles? Do I only start to charge when at 20% or less?

The best way is not to worry about it and just use it as you need to or is convenient. You will see many different advice scenarios but none from any user that has completed 3500 charge and recharge cycles on an EB240 and can speak from experience.