This battery is great for replacement of batteries in RC Planes, Drones, Helicopters, Cars, and anything else you need. You can charge these in solar projects too. These batteries have built in over/under voltage protection and temporary short circuit protection. These protections are NOT designed for anything other than temporary errors in wiring or use. As with any lithium ion polymer battery, these batteries must be stored safely and used responsibly. You agree to use these at your own risk and we are not responsible for injury or damage to equipment and property caused by their use.