10 Best Jump Start Battery Packs 2025 in the United States

The NOCO Boost Plus GB40 is a compact yet powerful jump starter suitable for both gasoline (up to 6.0 liters) and diesel (up to 3.0 liters) engines. With a peak current of 1000 amps, it can jump-start a car battery up to 20 times on a single charge. It is designed to be user-friendly and safe, featuring spark-proof technology and reverse polarity protection to prevent incorrect connections and sparks. This makes it particularly appealing for those who may not be very experienced with car maintenance.

Additionally, it offers multiple functionalities, acting as a portable power bank for USB devices and featuring a built-in 100-lumen LED flashlight with seven different modes, including emergency strobe and SOS. This can be particularly useful in roadside emergencies during night time or in low light conditions. The GB40 is designed to be used in various climates, thanks to its high-discharge lithium technology. It is also rugged and water-resistant with an IP65 rating, making it durable in different weather conditions. Its rubberized over-molded casing prevents it from scratching or marring surfaces.

Weighing only 2.5 pounds and being ultra-compact, it is easy to carry around and store. However, while it excels in portability and multifunctionality, some users might find the 24-inch cable length a bit short for certain applications. Additionally, it requires a powered USB-C port for recharging, which could be an inconvenience if you don't have one readily available.

The AstroAI S8 is a compact and lightweight jump starter that packs a powerful 1500-amp peak current, making it capable of jump-starting gas engines up to 6.0 liters and diesel engines up to 3.0 liters. Its 37WH lithium battery provides reliable power while staying portable enough to easily fit in your car or travel bag. Safety is well covered with eight built-in protections, including reverse polarity and short circuit prevention, plus quality metal clamps designed to reduce heat damage and ensure a secure connection. This makes it a safe device to use even for beginners.

Beyond jump-starting, it offers versatile extra features like a 3-mode LED flashlight and can double as a power bank for charging your devices. The metal clamps and smart boost mode add convenience, especially when dealing with fully drained batteries. The capacity (37WH) may require recharging more often if used frequently as a power bank, and cold weather can affect performance, so storing it properly in winter is important.

While it’s generally easy to use and carry, users should carefully follow the manual to maximize safety. This jump starter suits drivers who want a reliable, portable, and multi-functional tool for emergencies without the bulk of traditional jump boxes.

The NOCO Boost X GBX155 is a powerful and versatile jump starter designed to handle a wide range of vehicles, making it suitable for those with large gas engines up to 10.0 liters and diesel engines up to 8.0 liters. With an impressive peak output of 4250 amps, it provides significant starting power. The unit is relatively compact and portable, weighing just over 7 pounds, making it easy to store and transport.

One of its standout features is the USB-C Power Delivery, which not only allows for quick recharges of the jump starter itself but also enables it to charge a variety of USB-C devices, making it highly versatile. The UltraSafe 2.0 technology ensures safe operation with features like spark-proof technology and reverse polarity protection, which is particularly important for those who may not be experienced with jump-starting vehicles.

However, while the product is rich in features, it's on the heavier side compared to some other jump starters, which might be a drawback for users looking for something ultra-lightweight. The price point may be higher than some alternatives, though this is often justified by its high-performance specs and additional capabilities like the 500-lumen LED flashlight with multiple modes. Users have generally rated it positively, highlighting its reliability and effectiveness.