JUMP is a portable battery pack from Native Union that provides 800 mAh of extra power for iPhones and other devices, allowing users to charge up to 30% of their phone's battery with a single charge. Launched on Kickstarter in 2012, JUMP uses Lightning cables to charge iPhones and Micro USB cables for other devices, and its AutoCharge feature detects when a device is fully charged to prevent overcharging.