<p>1. Intelligent USB interface charging<br/>It comes with a USB cable for charging, low voltage, and safety! Main uses: It can be connected to mobile phone chargers, computers, power banks, car chargers, etc. for charging, which is simple and convenient.<br/><br/>2. The telescopic spring charging battery slot adopts a telescopic spring design, which is a variety of 3.7V lithium batteries (i.e.: 26650/18650/14500/16340 and other models)<br/><br/>3. Functional characteristics<br/>Input: 5V 1A-2A<br/>Output: 4.2V 500MA<br/>Power interface: USB charging plug<br/>Functional characteristics: Intelligent IC control, with anti-reverse charging function, the battery can be charged in both positive and negative directions, and it stops automatically when it is full, and it is safe to prevent overcharging<br/><br/>4. LCD displays the power level, and the charging status is clear at a glance<br/>3.7V and below display a positive battery circle flashing<br/>3.7V voltage (display 25% capacity)<br/>3.9V voltage (display 50% capacity)<br/>4.1v voltage (display 75% capacity)<br/>4.2 to 4.3v voltage (display 100% full grid) means: the battery is charged and charging stops automatically.<br/>5. Support 0V start<br/><br/>Color: black<br/><br/>Material: new material + full copper<br/><br/>Single set weight: 100g<br/><br/>Packing method: boxed<br/><br/>Single set contains: lithium battery charger * 1</p>