Extend your GPS tracking indefinitely. The SilverCloud Overdrive Battery Pack provides business owners and individuals the ability to track their vehicles and assets over extremely long periods of time. The battery pack comes with the 5000 Lithium Ion Battery, which can provide battery life for up to a month’s worth of driving (48-56 hours). By enabling users to switch out the batteries indiscriminately, vehicles can be tracked without worry of waning battery life. This battery pack can only be used with the SilverCloud Overdrive Live GPS Tracker.