Best Portable Jump Starters of 2025 - Top 5 Compared

The NOCO Boost Plus GB40 stands out as the most compact and portable solution among high-quality jump starters. Its lithium-ion battery delivers 1000 peak amps, sufficient for gas engines up to 6 liters and diesel engines up to 3 liters. The IP65 rating ensures protection against water and dust, making it reliable in various weather conditions. A unique Boost Mode bypasses the typical waiting period, allowing immediate engine starts in many cases. The device includes USB ports for charging electronics and an LED flashlight with multiple modes.

While the jumper cables are somewhat short, the clamps are well-designed with clear polarity indicators. The GB40 maintains charge for extended periods, though some users report the fabric carrying case could be more protective. Its combination of size, features, and NOCO's reputation for quality make it the top choice for everyday drivers needing reliable emergency power in a small package.

For those needing serious jump-starting power, the NOCO Boost HD GB70 represents the gold standard in portable lithium jump starters. Its 2000 peak amps can handle gasoline engines up to 8 liters and diesel engines up to 6 liters, making it suitable for most trucks, SUVs, and commercial vehicles. The unit features permanently attached 8AWG cables with heavy-duty clamps that eliminate connection issues common with removable cables. A rugged rubberized housing protects the internal components from impacts and the elements.

The GB70 includes safety features like spark-proof technology and reverse polarity protection, along with an LED flashlight with emergency strobe. While larger than compact models, its power output justifies the size for users who regularly deal with larger vehicles or challenging starting conditions. The battery maintains charge for up to one year when not in use, and NOCO includes a one-year warranty. Professionals and serious enthusiasts will appreciate the GB70's uncompromising performance and durability.

The Hulkman Alpha85S distinguishes itself with exceptional cold-weather performance thanks to its innovative Pre-Heat Technology, which maintains optimal battery temperature for reliable starts in temperatures as low as -40°C. This feature makes it particularly valuable for drivers in northern climates or high-altitude regions. The jump starter delivers 2000 peak amps, sufficient for gasoline engines up to 8.5 liters and diesel engines up to 6 liters. A standout feature is the large 3.3-inch backlit digital display that provides real-time voltage monitoring and detailed diagnostics, surpassing the basic LED indicators found on most competitors.

The Alpha85S charges rapidly via 65W USB-C input, reaching 80% capacity in just one hour. Ten-layer safety protection includes safeguards against overcurrent, reverse polarity, and short circuits. While the unit is larger than basic models, its combination of extreme weather capability, diagnostic features, and robust power output make it ideal for demanding environments. The included hard case provides excellent protection during storage and transport.

The Clore Automotive Jump-N-Carry JNC660 represents the professional's choice in portable jump starters, utilizing a traditional lead-acid battery that delivers consistent 1700 cranking amps. This design provides steady, reliable power that many professionals prefer over lithium-ion models, particularly for frequent use. The 68-inch heavy-duty cables offer exceptional reach, making it easier to access batteries in large vehicles or awkward engine compartments. A built-in voltmeter allows for quick battery condition checks, while the rugged construction withstands shop environments. Unlike sealed lithium units, the JNC660 features a user-replaceable battery, significantly extending its usable lifespan.

While heavier than lithium alternatives at 18 pounds, the weight contributes to stability during use. The unit maintains charge well when stored, though it requires more frequent recharging after use compared to lithium models. Professionals will appreciate the no-nonsense design, proven reliability, and ability to handle multiple jumps per charge. The lack of USB charging ports reflects its focused design as a dedicated jump-starting tool rather than a multi-purpose device.

The GOOLOO GP2000 stands out as the best value proposition in portable jump starters, offering 2000 peak amps at a price point significantly below premium brands. This lithium-ion unit can start gasoline engines up to 8 liters and diesel engines up to 6 liters, matching the capability of much more expensive models. Despite its affordable price, it includes useful features like a 400-lumen LED flashlight with multiple modes and both USB-A and USB-C ports for charging mobile devices. The GP2000 weighs just 0.54kg, making it one of the lightest options in its power class.

Ten built-in safety protections include safeguards against overcurrent, reverse polarity, and short circuits. While the plastic housing and thinner cables don't match the durability of premium models, the GP2000 performs reliably for occasional use. The unit holds charge well when stored and represents an excellent choice for budget-conscious consumers who still want substantial starting power. For those needing emergency jump capability without frequent use, the GP2000 delivers remarkable performance per dollar.