10 Best Portable Car Battery Chargers 2025 in the United States

The NOCO Boost Plus GB40 is a powerful, compact portable car battery charger that offers up to 1000 amps of peak output current, making it capable of jump-starting gasoline engines up to 6.0 liters and diesel engines up to 3.0 liters. A key strength is its UltraSafe design, which includes spark-proof technology and reverse polarity protection, ensuring safe and mistake-proof connections.

This device is highly portable, weighing just 7.9 ounces with a rugged and water-resistant enclosure, making it suitable for use in various climates. It also functions as a multi-purpose tool, doubling as a power bank for USB devices and featuring a 100-lumen LED flashlight with multiple modes, including emergency strobe and SOS.

The GB40’s lithium battery can provide up to 20 jump starts on a single charge and recharges quickly via USB-C in about three hours. Some users might find the lack of an included wall charger inconvenient, and the relatively short 24-inch booster cables might pose a challenge in some scenarios. The NOCO Boost Plus GB40’s combination of safety features, portability, and additional functionalities makes it an excellent choice for anyone needing a reliable and versatile car battery charger.

The NOCO Boost HD GB70 is a powerful and versatile portable car battery charger. With a peak output of 2000 amps, it can jump start dead batteries in gasoline engines up to 8.0 liters and diesel engines up to 6.0 liters. It's highly portable, weighing just 5 pounds and featuring a compact design, making it easy to store and carry.

One of its standout strengths is its comprehensive safety features, which include spark-proof technology and reverse polarity protection, ensuring safe and mistake-free operation. Additionally, its robust construction, with a water-resistant IP65 rating and a rugged rubberized casing, makes it durable for varied climates and conditions.

The device is also multifunctional, serving as a power bank to recharge USB-C devices and featuring a 400-lumen LED flashlight with multiple modes, including an emergency strobe and SOS function. This adds significant value, especially for emergencies. While it is capable of up to 40 jump starts on a single charge, its recharging time is relatively long at 6 hours if using a 2.1-amp USB-C port. The unit's price point may also be a consideration for some buyers, given its advanced features and robust build. For those in need of a reliable, high-performing car battery charger with added functionality and enhanced safety features, the NOCO Boost HD GB70 is a compelling option.