12V 1000A Jump Starter NOCO GB40

12V 1000A lithium jump starter – NOCO Boost Plus GB40

With 1000A available at peak, the GB40 adds what the GB20 lacks: a diesel rating, up to 3.0 L, alongside a 6.0 L petrol rating. That covers a large share of passenger cars, and the 24 Wh battery holds enough energy for up to 20 starts.

It accepts 12V AGM, EFB, gel, MF and flooded batteries, reads them from 2V and offers a manual override when the voltage is lower still. Clamp connection is spark-proof and safe against reversed polarity.

The rest of the package is practical: a 5V, 2.1A USB port for phones and tablets, a seven-mode 100-lumen torch and an IP65 housing (ports closed). Recharging takes about 3 h with a 2A USB charger.

Technical data

How to size it

• —  Engine ceiling: 6.0 L petrol or 3.0 L diesel.
• —  Up to 20 starts per charge, the same reserve as the GB20.
• —  Below it sits the GB20 (500A, petrol only, 4.0 L); above it, the GB50 (1500A, 7.0 L petrol / 4.5 L diesel).
• —  Diesel larger than 3.0 L? Move to the GB50, or to the GB70 with 2000A and a 6.0 L diesel rating.
• —  12V only: not suitable for 24V trucks or machinery.

Features

• —  Peak output of 1000A on 12V systems.
• —  Rated engines: 6.0 L petrol and 3.0 L diesel at most.
• —  Up to 20 starts on one full charge of the 24 Wh lithium-ion battery.
• —  Works with AGM, EFB, gel, MF and flooded lead-acid batteries.
• —  Recognises batteries from 2V; manual override below that level.
• —  Spark-proof clamps, safe against reversed polarity (UltraSafe).
• —  USB input and output at 5V, 2.1A; recharge in about 3 h with a 2A charger.
• —  100-lumen LED torch, seven modes, SOS and strobe among them.
• —  0.74 kg, 167 × 80 × 43 mm, IP65 with ports closed.

In the box

• —  NOCO Boost Plus GB40 jump starter
• —  HD precision battery clamps
• —  USB charging cable
• —  Microfibre storage bag
• —  User guide