What are normal figures for battery life on the newest Retina Macbook Pro systems and what could be draining battery. I have tried all of the tips on Apple support discussions and don't know if I should be getting better battery life.
closed as unclear what you're asking by Journeyman Geek♦, Heptite, Tog, Dave, Raystafarian Mar 27 '14 at 15:36
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The battery life of any system depends what you do with it, both in terms of hourly usage and lifetime. The lifetime of the battery can be roughly determined by saying it has so many recharges before it dies.
The more you do on the system the quicker the batter drains. This can include running system heavy processes and using plugin media like printers, speakers and USB devices.
Methods of increasing your battery life can include not using peripherals where possible. There is also an argument for draining and recharging you battery and not leaving it plugged in when fully charged. I personally follow this since it's not hard to do, but another side suggests holding the battery at 80% or so.
It is tempting to suggest reading material on good practice, but there are so many with varying results. Following the suggested methods are as good a start as any.