🔋 Battery Type and Configuration LiPo = Lithium Polymer battery, widely used in drones, RC cars, planes, and robotics due to high power density and lightweight. 3S = 3 cells connected in series. Each LiPo cell has a nominal voltage of 3.7V. 3 × 3.7V = 11.1V nominal voltage. When fully charged, each cell reaches 4.2V, so total = 12.6V. Minimum safe voltage is ~3.2V per cell (so ~9.6V total). ⚡ Capacity 1500mAh (1.5Ah) = The charge it can store. It means the battery can supply 1500mA (1.5A) for 1 hour, or 3A for 30 minutes, etc., depending on load. Higher mAh = longer flight time, but also more weight. 🔥 Discharge Rate (C Rating) 20C = Discharge multiplier. Formula: Capacity × C rating = Maximum continuous discharge current 1500mAh = 1.5Ah 1.5Ah × 20C = 30A continuous current supply This means the battery can safely provide up to 30A continuously without damage. For drones, this ensures motors get enough current during fast acceleration or heavy load. 📐 Physical Features Compact and lightweight (varies with brand, usually ~100–150g). Equipped with: Main discharge connector (often XT60, Deans T-Plug, or JST). Balance connector (3-pin JST-XH) for charging and balancing cells. ✅ Applications RC drones, quadcopters, helicopters. RC cars, boats, planes. Robotics projects where high current and lightweight power source is required. ⚠️ Safety & Usage Notes Charging: Always use a LiPo balance charger (set to 3S, 12.6V max). Storage: Store at ~3.8V per cell (~11.4V total) to prolong lifespan. Handling: Avoid puncture, overcharging (>12.6V), or over-discharging (<9.6V). Monitoring: Many drone setups use a voltage alarm to prevent over-discharge. 👉 In short: A 1500mAh 3S 20C LiPo battery is a lightweight, high-performance power source delivering 11.1V nominal (12.6V full), 30A continuous current, making it ideal for small-to-medium RC drones needing a balance of power, flight time, and weight.