รางถ่าน18650/4 ก้อน แปลงเป็นDCและUSB กล่องแปลงไฟ

รางถ่าน18650/4 ก้อน แปลงเป็นDC และ USB ใช้แทนpower bank ได้ -Special For 18650 battery （with protection PCB） -8.4V input and output port -USB port charge mobile phone faster 1.This battery box only fit for 4.2v 18650 Liion rechargeable battery Please use two same capacity batteries for installation) 2.Connect the 8.4V charger's output port to the battery box's DC round port for charging 3.Battery box's round port is connected to 8.4V bike light,it。could be output or input.5V USB port only for output,can connect to mobile phones and other digital products 4.USB power supply max up to 2100mA greatly shorten charging time 5. Waterproof Grade: IP67 6.Have overcharge, overdischarge overcurrent three protection functions 7 Magic strap to make installation more convenient and faster INPUT ： 8.4V (2000mA) OUTPUT1 :8.4V (DC) OUTPUT2 : 5V Max 2100mA (USB) Standby Current: 75 ha Waterproof Grade: IP67 ONLY Fit for 18650 Battery Product weight: 112g Not included strap and battery)