This camera keeps itself charged with two methods: Solar Power: An 8W solar panel continuously tops off the camera's 15000mAh battery, providing uninterrupted eco-friendly power for most situations. Rechargeable Battery: Even on cloudy days, the large battery has you covered. However, heavy camera usage during low sunlight periods might eventually drain the battery. No worries! The camera will still function, and you'll receive a notification if the battery level gets too low.