NOCO Boost GB40 portable lithium car jump starter

Description

The NOCO Boost GB40 is a portable jump starter for cars whose battery has run flat. According to the Amazon listing, it is a compact lithium unit with a 1000 amp peak current, spark-proof design and reverse polarity protection against wrong connection. The listing mentions up to 20 starts on a single charge, for petrol engines up to 6 litres and diesel engines up to 2 litres. It weighs about 1 kg and can also serve as a power bank for a smartphone in an emergency. It suits drivers who want to be sure the car will start without help from another vehicle. Before buying, check on Amazon that your engine size and fuel type fall within the stated limits, and keep the unit charged so that it is ready when you need it.