12V 5250A Jump Starter NOCO GB250+

12V 5250A commercial lithium jump starter – NOCO Boost MAX GB250+

Built for heavy 12V equipment, the GB250+ delivers 5250A at peak and is rated for petrol and diesel engines of up to 16 L, from 6 to 16 cylinders. In practice that means motorhomes, buses, class 8 trucks and machinery for farming, construction or mining, as long as they run on 12V.

Protection comes from UltraSafe 2.0: spark-proof, safe against reversed polarity and with improved thermal management. A 60-second timer saves internal charge, a voltmeter reads battery voltage, and batteries are detected from 2V, with manual override.

The 242 Wh pack also supplies a pair of 5V, 2.1A USB sockets plus a 12V, 15A output. Recharge time is 8.5 h, either through the XGC4 adapter (56W) or a 12V vehicle socket. Weight: 6.67 kg; EVA case included.

Technical data

How to size it

• —  Engine ceiling: 16 L, petrol or diesel, 6 to 16 cylinders.
• —  12V systems only. For 24V, the GB251+ (3000A, up to 32 L) is the counterpart.
• —  Need both voltages? The GB500+ switches between 12V and 24V and delivers 6250A for engines up to 45 L.
• —  For 12V vehicles under 10.0 L petrol / 8.0 L diesel, the Boost X GBX155 (4250A) is a lighter alternative at 2.64 kg.

Features

• —  Delivers 5250A at peak on 12V lead-acid systems.
• —  Petrol or diesel, 6 to 16 cylinders, displacement of up to 16 L.
• —  Applications: class 8 trucks, buses, motorhomes, farm, construction and mining machinery.
• —  UltraSafe 2.0 with improved thermal management, spark-proof and polarity-safe.
• —  60-second timer to preserve the internal battery.
• —  Voltmeter displaying the vehicle battery voltage.
• —  Detection from 2V and manual override mode.
• —  242 Wh battery feeding a pair of 5V, 2.1A USB sockets plus a 12V, 15A output.
• —  Recharge: 8.5 h via the XGC4 adapter (56W) or a 12V socket; IP65 with ports closed.

In the box

• —  NOCO Boost MAX GB250+ jump starter
• —  EVA case
• —  XGC4 mains adapter
• —  12V vehicle charging cable
• —  User guide