Your electric car's battery is the most critical and valuable part of the vehicle's powertrain. It directly determines how much range you are able to get from the vehicle. However, depending on how you use and treat the battery, it can lose its capacity to store charge over time. You therefore need to know the best practices that keep the battery life sustained for the long term.
The biggest impact to the battery life is determined by :
(a) how frequently you charge the battery
(b) to what level you charge the battery
(c) how low you run the battery down in your daily use
Though Tesla has designed a great battery that will give good long term use for your EV, you can stretch that battery life even more if you follow this simple guide. Determine how much range you need everyday, then you can easily determine the maximum setting you should charge your battery to daily, to get the most long term use from your battery.