Battery Capacity (mAh) Explained Simply! Have you ever wondered what mAh means on a battery or power bank? mAh (Milliampere-hour) indicates how much electrical charge a battery can store. Formula: Battery Capacity (mAh) = Current (mA) × Time (Hours) Example: If a battery supplies 500 mA for 10 hours: Capacity = 500 × 10 = 5000 mAh Key Point: Higher mAh generally means longer operating time before recharging. Understanding battery capacity is useful for: Mobile Phones Power Banks UPS Systems Solar Applications Industrial Electronics IoT Devices Save this infographic for quick reference and share it with your friends and colleagues. Post navigation Proximity Sensor Types Explained! How to Calculate Motor RPM?