CHEOTIME 18650 Battery Case,Waterproof Battery Pack Cover USB/DC Dual Connection Holder Power Bank Case for Bike Bicycle Light Headlight Cellphone Mobile Phone - CHEOTIME7a0iowzscx

• Provide Electricity For Your Outdoor Activities: Battery box can provide energy for your bicycle lights Battery box can also provide power support for your other small lamps meet some of your creativity Battery box can also provide energy for your mobile phone. No Complicated Operation Is Required: This battery box only needs 4x18650 batteries, and the battery box has a USB/DC interface, which can charge the electrical appliances with USB interface Satisfy Your Creativity: Battery box can be fixed on your bike, provide power for your lights, battery box can also be used in camping can be waterproof, battery box can also be used to do scientific experiments to complete your DIY Large Capacity Is More Durable: Can accommodate 4x18650 battery, battery box has an elastic band, USB/DC interface Good For Outdoor Travel: As a battery carrier, provide electric energy, easy to carry, waterproof, mobile phone charging