sponge energy 20000 is a new generation external battery. Cell phones these days are more likely to run out of battery at the worst possible times. in such cases, an external battery will help you. charge your cell phone, tablet, mp3 player or almost any other device.
two usb ports
the battery has two USB ports (2.1a and 1a) that allow you to charge two devices at the same time.
high quality
sponge energy 20,000 internal batteries are characterized by their quality, long service life and large capacity.
outer casing
the device has a durable plastic case that protects the battery from damage and voltage overload protection.
status indicator
sponge energy 20,000 has four LED lights that indicate how charged the battery is.
lamp
If you lose your lucky hook in a night fishing, want to catch a mosquito inside a tent, or are looking for a golden cup in the forest, the sponge energy 20,000 built-in flashlight will help you.