I bought a battery from OWC some 25 days ago. When I checked battery health using coconut battery as well as iStat widget, it states battery health as 91%. My cycle count is 33, since I charge it in the evening and use it at day time. I am always mobile. Is this normal? Will re-calibrating it give an improvement on the battery health? Or is it time for an RMA? Btw, I am not shutting the PB and it has been on for 22 days since battery replacement.