Originally Posted by
lorrieandjas
Hey guys - for what it's worth - when you first get a laptop it pays massive amounts to charge the battery fully the first time for what they recommend in the user manual - some are 15 hours, some 9 and some 24. Did some benchmarking on this a while ago and found that depending on the battery type (and using the manufacturers recommendation for first charge) resulted in up to 200% prolonged battery life. For example, 13" Macbook Pro - take one and charge on first use for 9 hours, other use straight away - the one charged as per their instructions still going strong (6 hour battery life). One used straight away averages about 2.75 hours. Won't go into tedious detail but trust me - almost always works.
Jas