This Li-ion charger adapter with a 3 pin round connector and cord is the perfect choice for anyone looking for a reliable and efficient charging solution. With an output of 42V-2.0A, this charger is compatible with a variety of Li-ion batteries and can deliver a quick and efficient charge that will keep your devices powered up and ready to go. Whether you need to charge your phone, tablet, or other electronic device, this charger is the perfect choice. Its compact and lightweight design makes it easy to take with you wherever you go, while its durable construction ensures that it will last for years to come. So why wait? Get your Li-ion charger adapter today and enjoy fast, efficient charging that you can count on!