Well, I very rarely take the laptop away from my desk. If I knew I was going on a long trip, I would put the charge up to 100%. When I do go on a long trip, t

Well, I very rarely take the laptop away from my desk. If I knew I was going on a long trip, I would put the charge up to 100%. When I do go on a long trip, then there's benefit in conserving battery life, because the charge I'll take with me will be substantially higher.