
ZEROHOUR RELIC BB USER GUIDE
GETTING STARTED
ZEROHOUR RELIC BB is a bike and weapon mountable USB rechargeable battery backup for USB mobile
devices. Our first project, ZEROHOUR XD, set new standards for flashlights by offering the ultimate
integration of light and power, and on that foundation we’ve built a new battery backup device that is
smaller and lighter.
Now, let’s get started!
BEFORE POWERING ON YOUR RELIC BB, make sure the tail-cap is tightened fully by tightening
clockwise. The tail-cap is purposely loosened to prevent battery discharge while at rest inside the retail
package.
WHAT’S INCLUDED
ZeroHour Relic BB Battery Backup
Relic BB is the world’s most unique and versatile USB battery backup. Recharge most mobile USB
devices with its 3400mAh of backup power.
Micro-USB Power Cable

Use the Micro-USB power cable to recharge your BB’s lithium-ion battery. One end plugs into your Relic
BB, and the other end plugs into a USB power adapter of your choice. USE ONLY UL CERTIFIED
ADAPTERS. DO NOT PLUG THE USB CABLE INTO A PORT LABELED “SERVICE”; IT MUST BE LABELED “USB”
OR DISPLAY THIS SYMBOL:
18650 Battery
The 18650 battery uses a rechargeable and replaceable lithium-ion cell to power the battery backup. WE
RECOMMEND USING PROTECTED, UL CERTIFIED BATTERIES ONLY.
ZEROHOUR RELIC BB AT A GLANCE
BATTERY BACKUP OPERATION
To Power On: Click the tail-cap switch to power both the input Micro-USB port for recharging and USB output
port to use as a battery backup.
To Charge your USB devices: Locate the USB output port. Plug in your mobile USB device and charging
cable and press on the tail-cap switch to activate. You can use both 18650 and CR123 batteries to charge
your mobile devices.