TrustFire-Battery Packs for LED Bike Lights Power Banks Case USB Charging, Mobile Phone Waterproof Battery Box 18650 DC 8.4V

TrustFire EB02 18650 Battery Packs DC 8.4V Power Banks Case USB Charging Mobile Phone Waterproof Battery Box for Led Bike Lights

• Special and Only for button top 18650 Li-ion rechargeable battery ( with protected PCB ), please install the same battery capacity/voltage/internal resistance batteries for usage. Can run mobile devices as emergency backup

• 8.4V DC input and output, 5V for USB output to charge mobile phone faster. USB output current: 2100mAh.

• Battery box's round port is connected to 8.4V bike light. It can be used as output or input. 5V USB port is only for output. Mobile phones and other digital products can be connected. Magic strap to make installation more convenient and faster

• Waterproof : IP67. Guarantee safety: overcharge / over-discharge / over-current protection functions.

• What battery type can work with this battery case ?  our TrustFire 3.7V  button top 18650 rechargeable lithium battery with PCB or 4.2V button top 18650 rechargeable battery with PCB .

• Package Include: 1x EB02 battery power pack case ( battery NOT included );  1x strap