There are number of battery care best practices in the manual. For best battery life, we recommend the following: – Remove the battery from the charger immediately after it reaches a 100% charge, do not let it continue charging for prolonged periods – Avoid fully depleting the battery, try to charge when it is around 50% and always try to keep it above 30% – Avoid charging the battery when it is below 50-degrees or above 86-degrees F – If you don’t need a full charge, avoid charging above 80% capacity Here’s a good article by Popular Science about battery life.