NOCO Boost GB20

The NOCO Boost GB20 is a compact, entry-level lithium jump starter designed for drivers of smaller vehicles who want peace of mind without carrying bulky lead-acid equipment. In our testing, this unit proved incredibly reliable for emergency roadside assistance, provided you are working with engines within its specified limits. Its UltraSafe technology is a standout feature, offering spark-proof connections and reverse polarity protection that makes it approachable even for those with zero mechanical experience. The build quality feels rugged enough to handle being tossed in a glove box or trunk for months at a time.

While the GB20 is marketed as a multi-functional device, it is best viewed as a dedicated jump starter rather than a high-capacity power bank. It lacks the massive capacity of larger professional-grade units, meaning it is not intended for charging multiple devices or jump-starting large trucks. Its performance is optimized for 4.0L gas engines; attempting to start anything larger will likely trigger the safety shut-off. This is a budget-friendly solution for the everyday commuter or the occasional weekend driver who wants a reliable backup for a dead battery. It is not, however, a tool for diesel engines or heavy-duty commercial use, so owners of large SUVs or work trucks should look toward more powerful models in the NOCO lineup.