One of the common problems disappointing many drone pilots is drone battery swelling. Occasionally, you notice slight deformation of the battery case, but if it worsens, swelling can affect battery installation and flight time and even pose safety risks. So, why do drone batteries swell? Can you still use the drone in this condition? And how can you prevent battery damage? This blog will provide detailed answers.
1. Long-Time Exposure to High Temperatures
Drone batteries hate heat, pure and simple. Flying under a blazing sun spikes the battery's internal temperature, which breaks down the chemicals inside and builds up the gas that causes swelling. A bad habit a lot of pilots have is landing a warm drone and instantly plugging the battery into a charger. Always let it cool down first, or you're just begging for puffed cells.
2. Incorrect Charging Measures
Even with today's smart batteries, proper charging is still important. Regularly leaving a battery connected after it's fully charged or relying on incompatible chargers can speed up battery aging. A good rule of thumb is to use the recommended charger and remove the battery once charging is finished.
3. Pushing the Battery Too Low
We’ve all tried to wring out every last minute of flight time, but running a battery down to empty ruins the cells fast. Make it a habit to land with roughly 20% juice left. It saves your battery from extreme stress and keeps your power consistent.
4. Storage Mistakes
Batteries degrade fast when they sit unused at the wrong charge level. A fully charged battery sitting in a hot room for a month is a prime candidate for swelling, and leaving one at 0% will kill the cells completely. Get them to around 50% power, keep them in a cool spot, and top them up slightly if they sit idle for too long.
5. Wear, Tear, and Hard Hits
No battery lasts forever. As cycles stack up, performance naturally drops and swelling becomes much more common. Accidents make it worse. If your drone took a spill or a battery hit the pavement, give it a serious look over. Just because the case isn't cracked doesn't mean the inside didn't take a hit.
Final Thoughts
Pay attention to a few small things, such as charging it correctly, storing it safely, and taking just a few seconds to check the battery before takeoff, will keep your flights smooth and secure. Have questions about your battery's health? Don't hesitate to reach out to Ruko's 24/7 customer service team for personalized assistance before your next flight!
