USB To 4.2V 1A 3.5x1.35mm for Smart Battery Charger for 3.7V Li-ion Lithium Batt

Features: Provides 4.2V for DC from USB,Power devices from a USB to 3.5x1.35mm port. By powerbank to power other devices. Such as: USB lights, USB fan, radiator, mini speakers, and so on . With indicator light, red light when charging, green light when fully charged. The size of the for DC Connector is OD: 3.5 mm and ID: 1.35 mm. Please check if it fits in the power jack on your devices. Safe and Reliable, with built-in upgraded intelligent IC circuit, our voltage adapter provides your devices perfect protecetion from over-current, over voltage, overload or short circuit.

Specifications: Material:Plastic Input: 5V 2A Output: 4.2V 1A Length:Approx.97cm/38.19in Net Weight:26g

Package Includes: 1x USB to for DC Power Cable

note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.