Getting the most out of your Dewalt 20V battery isn’t just about how you use it—it’s also about how you charge it. Always use the official Dewalt charger to avoid damaging the cells. Avoid letting the battery fully drain; partial charges are healthier for lithium-ion batteries. Keep it away from extreme temperatures while charging, especially in direct sunlight or cold. Store it at room temperature when not in use. Clean the battery contacts occasionally to maintain a solid connection. Don’t leave it on the charger once it's full—unplug it once it's done. Rotate between two batteries if you use your tools daily. Let it cool down before charging after heavy use. Smart charging habits like these can add years to your battery’s life.