Material: ABS Input: dc 5v Output: 4.2v/ 1200ma Compatible batteries: 3.7V/3.8V lithium-ion battery (26650 / 18650 / 18500 /18350 / 17670 / 16340 /14500 / 10440). Features: fast charging, overcharge protection,. Description.100% brand new and high quality. Made of fireproof board and flame retardant plastic, safe and durable.Small and lightweight, plug and play, simple to use. With LED indicator, red light on when charging, green light on when fully charged.