3.7V USB Lithium Ion Battery

The 3.7V USB lithium ion battery comes with a standard size and a universal type-c USB charging port. Based on lithium ion technology with high energy density, this type of battery has long lasting time, long cycle life, no memory effect, recycling, energy saving, eco friendliness and other advantages of lithium ion batteries. It is easy and convenient to charge anywhere directly with a universal USB cable and no extra battery charger required. Best replacement of alkaline, primary lithium, Ni-Mh, Ni-Cd.