Product Details: 1. This battery box only fit for 4.2v 18650 li-ion rechargeable battery (please use two same capacity battery for installation). 2. Connect the 8.4v charger output port to the battery box DC round port for charging. 3. Battery box 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. 6. have overcharge, overdischarge, overcurrent three protection functions. 7. Magic strap to make installation more convenient and fastec. USB Port charge mobile phone faster Model: Battery Case Box Materia: ABS Color: Black Quantity: 1pcs Waterproof: IP67 DC interface output & Input voltage: 8.4V DC interface output current: 2000mA USB interface output & Input voltage: 5V USB interface output current: 2100mA Standby current: 75μA Size 70*102*46.2mm Power Supply: 18650 Battery (Not Include) Package Contents: 1 x Battery Case Box PS: (Not included Battery)
