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The NOCO Boost Plus GB40 is a 1000-amp lithium-ion jump starter for 12-volt vehicles. It is rated for gasoline engines up to 6.0 liters and diesel up to 3.0 liters, and it delivers up to 20 jump starts per charge. UltraSafe circuitry makes the clamps spark-proof and protects against reverse polarity, so a mistake at the battery is hard to make. It also works as a USB-C power bank and has a 100-lumen LED light with seven modes, all in an IP65-rated case. Owners rate it highly for starting power and ease of use; the main complaints are the short cable reach and the plastic clamp build.
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Owners rate the GB40 very highly and describe it starting dead batteries on the first try, often on engines larger than expected. They like the compact size, the safe clamp design and the built-in light. Criticism centers on the short cables and the plastic clamps.
The NOCO Boost Plus GB40 is a portable lithium-ion jump starter with 1000 amps of peak power. It can start a dead 12-volt battery on gasoline engines up to 6.0 liters and diesel engines up to 3.0 liters. One charge provides up to 20 jump starts.
UltraSafe Technology gives it spark-proof connections and reverse polarity protection, which guards against wrong connections. The housing is IP65-rated and has a rubberized over-molded casing to resist water, dust and impact. The clamps are high-conductivity for energy transfer.
It also works as a USB-C power bank for smartphones, tablets and other devices. An integrated 100-lumen LED flashlight has seven light modes, including SOS and strobe. The unit weighs 2.5 lb and recharges in 3 hours.
