NOCO Reference: BCASA-NOCO-GB250

NOCO Boost MAX GB250+ · portable jump starter for trucks and machinery 12V 5250A

A heavyweight 12V booster with 5250A peak for engines up to 16 L, from class 8 trucks and buses to motorhomes and farm or site machinery.

  • ✓  12V systems, engines up to 16 L
  • ✓  5250A peak current
  • ✓  Built-in voltmeter
  • ✓  Two USB ports and 12V output
  • ✓  600-lumen torch

NOCO Boost MAX GB250+ · portable jump starter for trucks and machinery 12V 5250A

A tractor that won't turn over in the yard, a motorhome after the winter, a truck at the depot: big 12V engines need serious current, and waiting for a tow costs time.

The NOCO Boost MAX GB250+ supplies 5250A peak to 12V lead-acid systems, for petrol and diesel engines up to 16 L with 6, 8, 12 or 16 cylinders. UltraSafe 2.0 prevents sparks and reversed-polarity damage, a timer cuts out after 60 seconds to save power, and the voltmeter shows the state of the vehicle's battery.

The 242 Wh battery also feeds a pair of 2.1A USB sockets plus a 12V outlet, and the 600-lumen torch helps at night. It recharges in 8.5 h from the XGC4 adapter or a 12V vehicle socket.

How to use it, step by step

  • 1.  Stop the engine and switch off the ignition.
  • 2.  Connect red to the positive terminal of the 12V system and black to negative or to a solid earth point on the chassis.
  • 3.  Switch the GB250+ on and check the voltmeter; for a battery below 2V, use manual override mode.
  • 4.  Start the engine and remove the clamps in reverse order, black before red.
  • 5.  Recharge it afterwards with the XGC4 adapter or from a 12V socket (8.5 h).

Features

  • ✓  A 5250A peak for lead-acid battery systems working at 12V.
  • ✓  Copes with petrol or diesel engines of as much as 16 L, whether 6, 8, 12 or 16-cylinder.
  • ✓  Right for class 8 trucks, coaches and buses, motorhomes, and machines used in farming, construction and mining.
  • ✓  UltraSafe 2.0: no sparks, no damage from reversed clamps and better heat management.
  • ✓  Timer that cuts out after 60 seconds to save the internal battery.
  • ✓  Voltmeter displaying the voltage of the vehicle battery.
  • ✓  Detects batteries from 2V and has a manual override mode.
  • ✓  Its 242 Wh battery feeds a pair of 5V, 2.1A USB sockets and a 12V, 15A outlet.
  • ✓  600-lumen light, IP65 rating with the ports shut, and an EVA case.

Technical data

System voltage12V
Peak current5250 A
Internal batteryLithium-ion, 242 Wh
Petrol and diesel enginesUp to 16 L
Compatible batteriesLead-acid: wet, gel, MF, EFB, AGM
Minimum detection voltage2V (manual override below this)
USB (output)2 × 5V, 2.1A
12V input12V, 5A (14V max.)
12V output12V, 15A
Recharge time8.5 h with the XGC4 adapter (56W) or the vehicle's 12V socket
LED torch600 lumens, 7 modes (incl. SOS and strobe)
Built-in voltmeterYes
Jump start timer60 s (power saving)
Housing protectionIP65 (with ports closed)
Operating temperature-20 °C to +50 °C
Charging temperature0 °C to +40 °C
CoolingNatural convection
Weight6.67 kg
Dimensions382 x 219 x 93 mm

In the box

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

  • Brand
  • Reference
    BCASA-NOCO-GB250
  • EAN13
    1210000619402
  • MPN
    GB250

noco-gb250-ficha-tecnica.pdf

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