TD-386, a power bank, is designed for Speedlite. It has a high capacity power source of 5200mA and can meet the need of fast power supply for speedlite with different brands. It largely increases the number of firing, lower the recycle time and enhances the capacity of endurance.The full-power output of the speedlite can fire 1000 times, the fast recycle time is about 1.5sec and can be connected to speedlite with different brands by changing different power cables. TD-386 with USB port can supply power for other equipment with USB port. Importing multi power, it is not only supply power for home power system but also for car power. It is indispensible for shooting.