Massive Power

Start Vehicle Within 60 Seconds Auto Power Conservation

Start the vehicle within 60 seconds after pressing the power button on Boost. After the 60-second timeout is complete, the unit must be powered off, then back on, to initiate a new jump-start sequence. The yellow power LED indicates the 60-second sequence is over and can be reset if another jump start sequence is needed.

Reverse Polarity Protection Spark-Proof

We took our UltraSafe technology and made it better— UltraSafe 2.0. It's still our simple, mistake-free design featuring spark-proof technology and reverse polarity protection, but with enhanced thermal efficiency and power management to provide better performance and longer battery life.

USB Practical Charge & Recharge

Charge Devices USB Charge & Recharge

With two built-in 2.1A USB ports, you can power multiple devices at the same time, such as smartphones, tablets, action cameras, wireless headphones, wearables and more. With over 266 watt-hours of lithium power, the GB500+ can provide endless hours of operation and recharge your devices multiple times before needing a recharge.

Power 12V Devices Portable Power

Power 12V Devices Portable Power

Understand The Problem Integrated Voltmeter

Integrated Voltmeter / 60 Second Countdown Timer. The Boost MAX GB500+ is equipped with an integrated voltmeter to help pinpoint battery issues. The voltmeter doubles as a 60-second countdown timer, which shuts off GB500+ after 60 seconds to help preserve internal battery charge.

Compact & Lightweight Unrivaled Portability

Jump starters this powerful typically are enormous and weigh hundreds of pounds, but our high discharge lithium technology makes it the most compact and lightweight design in the world - weighing a mere 24-pounds. And its portable carrying case makes jump starting more convenient than ever.