NOCO Boost Max GB250 Jump Starter 12V 5250A

The NOCO Boost Max GB250 is a professional lithium jump starter for 12V systems with 5250 A peak current and a 242 Wh battery. NOCO rates it for gasoline and diesel engines of 16 L and more, in vehicles such as trucks (up to class 8), RVs, buses and agricultural, construction and mining equipment with 6, 8, 12 or 16 cylinders. The UltraSafe 2.0 connection is spark-free and has reverse-polarity protection, for 12V lead-acid (wet, gel, MF, EFB and AGM). A built-in voltmeter shows the vehicle's battery voltage. There are two USB outputs (5V 2.1 A per port) and a 12V output of 15 A. You recharge it through the 12V input or the XGC4 adapter in 8.5 hours. The LED flashlight gives 600 lumens with 7 modes, the housing is IP65 (with the ports closed) and it weighs 6.67 kg.

What's inside

Jump starter with mains plugs Type A/C/G/I, 12V cable, XGC4 adapter, user manual and EVA case.

Why this product

• 5250 A peak current and 242 Wh battery for trucks, buses and heavy equipment

• Gasoline and diesel, NOCO lists 16 L and more, 12V systems only

• Built-in voltmeter and 60-second timer for a controlled start

• Recharges in 8.5 hours via the 12V input or the XGC4 adapter

• Two USB outputs, a 12V output of 15 A and a 600-lumen LED flashlight

How to use

1. Check polarity: red to plus (+), black to minus (-), and clamp both firmly (The UltraSafe 2.0 connection is spark-free and has reverse-polarity protection; the built-in voltmeter shows the vehicle's battery voltage)

2. Start the engine within the 60-second timer (If the timer has run out, switch the unit off and on again for a new start)

3. Remove the clamps as soon as the engine runs: black first, then red (Do not leave the clamps connected longer than necessary)

4. Recharge the GB250 afterwards (That works through the 12V input (12V/5A, max 14V), from the 12V socket in the vehicle or with the XGC4 adapter, from 0 to 100% in 8.5 hours)

A handy companion to your jump starter: more tools for maintaining your vehicle.