FPV Drone Battery Puffing — The Silent Danger: A Complete Guide to Protecting Battery Life and Flying Safely
Photo by Daniel Chekalov on Unsplash Is your FPV drone battery getting "puffy" right now? Battery puffing is one of the most common, yet dangerously overlooked, issues in the FPV community. This naturally occurring problem can lead to fire or explosion at any time, but fortunately, understanding its causes and taking preventative measures can largely mitigate the risk. Why Do FPV Drone Batteries Puff? LiPo (Lithium Polymer) battery puffing occurs due to internal chemical reactions. Gases build up inside the battery cells, pushing out against the battery casing and causing it to swell. There are four main causes: First, overcharging . If a battery is charged above its normal voltage due to a charger error or manual mistake, excessive current flows internally, accelerating chemical reactions. Use reliable chargers like iCharger or SkyRC, and always monitor the battery status during charging. Never leave a battery connected to the charger overnight. Second, over-disch...