1. Avoid full charging when you can.
One reason that batteries in mobile devices only last a couple years, is that they are being pushed to their maximum capacity—frequently getting fully charged and fully drained. Consumer products are advertised by their battery operation time, not their battery lifespan. This means that every possible electron will be shoved in there. Charging to maximum capacity might give you the possible use for that one charge, but it is one of the worst things that you can do to lithium batteries. One additional advantage of not charging up all the way is that it leaves room to store energy from regenerative braking.