In August this year I bought a refurb early 2015 rMBP 13" with 16GB ram. Seems my battery health is dropping at alarming rate. I have 14 Load Cycles on it and battery health is reportedly 94% already. I don't use it extensively just Safari and general use really nothing power hungry or intensive. Usually let it drain to about 20-30% before a full recharge. I have let it die completely or drain down to under 3% before charging as well. At this rate in 6 more months I'll likely be under 80%. Thoughts?