YACSEJAO USB to DC 2.0mm Cable 5 Pack USB 2.0 Type A Male to 3.7V DC 2.0mm Jack Power Adapter for RC Drone Quadcopter FPV Airplane Parts Lithium Battery Charging - YC-SQ42R

• USB to DC 2.0mm charging cable for charging via power adapters, USB ports on laptops/PCs, mobile power, wall chargers and car chargers. VALUE 5 PACK: Get 5 pcs of 3.7V USB Li-ion battery chargers in one purchase, you can use them for charging in different occasions at the same time. One purchase, multiple choices. Widely Compatible: Compatible with electronic devices with 2.0mm x 0.6mm cylindrical jacks, such as toys, headphones, shower speakers, receivers, old No'kia mobile phones, RC drones and more. Safe & Reliable:: USB2.0A type male to 2.0mm DC connector is equipped with an intelligent charge management IC, which protects the Li-ion battery from overcharging and better prolongs the service life of the Li-ion battery. Input: 5V 0.5-2A 5V 0.5-2A, Output: 4.2V 300mA.3.7V lithium battery can be charged 50-600mah.