GB251+ by NOCO: Boost MAX 24V 3000A lithium jump starter
Lithium jump starter for 24V systems: 3000A peak, engines up to 32 L, built-in voltmeter and a 600-lumen work light.
3000A peak at 24V | Petrol and diesel up to 32 L | 137 Wh internal battery | 600-lumen LED light | IP65 with ports closed
GB251+ by NOCO: Boost MAX 24V 3000A lithium jump starter
Will it work on a 24V lorry? That is exactly its job: the GB251+ starts 24V lead-acid systems with 3000A peak current and handles petrol and diesel engines up to 32 L, so Class 8 trucks, buses, motorhomes and plant machinery are covered.
Before you clamp on, the built-in voltmeter shows the battery voltage. It detects batteries from 3V, with a manual override below that, and a 60-second timer protects the 137 Wh internal charge.
The box includes an EVA case, the XGC4 mains adapter and a 12V vehicle cable; a full recharge takes around 8.5 hours.
Before you order, check
- › Your vehicle runs on 24V: the GB251+ has no 12V setting; the GB500+ offers both voltages.
- › Engine displacement is no more than 32 L, petrol or diesel.
- › The battery is lead-acid: flooded, gel, MF, EFB or AGM.
- › You can recharge it from the XGC4 adapter or a 12V vehicle socket.
- › Not sure about your truck or machine? Give us a call and we will confirm the model before you order.
Features
- › Starts 24V lead-acid systems (flooded, gel, MF, EFB, AGM) with 3000A peak.
- › Rated for petrol and diesel engines up to 32 L, from 6 to 16 cylinders.
- › UltraSafe 2.0: spark-proof with reverse polarity protection.
- › Built-in voltmeter; detects batteries from 3V, with manual override.
- › Two 5V 2.1A USB ports plus a 12V 15A auxiliary output.
- › 600-lumen LED light with 7 modes, including SOS and strobe.
- › Recharges in 8.5 h via the 56W XGC4 adapter or a 12V vehicle socket.
- › Weighs 6.17 kg; operates from -20 °C to +50 °C.
In the box
- › NOCO Boost MAX GB251+ jump starter
- › EVA case
- › XGC4 mains adapter
- › 12V vehicle charging cable
- › User guide
Technical data
| System voltage | 24V |
|---|---|
| Peak current | 3000 A |
| Internal battery | Lithium-ion, 137 Wh |
| Petrol and diesel engines | Up to 32 L |
| Compatible batteries | Lead-acid: wet, gel, MF, EFB, AGM |
| Minimum detection voltage | 3V (manual override below this) |
| USB (output) | 2 × 5V, 2.1A |
| 12V input | 12V, 5A (14V max.) |
| 12V output | 12V, 15A |
| Recharge time | 8.5 h with the XGC4 adapter (56W) or the vehicle's 12V socket |
| LED torch | 600 lumens, 7 modes (incl. SOS and strobe) |
| Built-in voltmeter | Yes |
| Jump start timer | 60 s (power saving) |
| Housing protection | IP65 (with ports closed) |
| Operating temperature | -20 °C to +50 °C |
| Charging temperature | 0 °C to +40 °C |
| Cooling | Natural convection |
| Weight | 6.17 kg |
| Dimensions | 382 x 219 x 93 mm |
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Brand
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ReferenceTB-NOCO-GB251
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EAN131210000619419
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MPNGB251