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Exact model imagery NOCO
NOCO Boost GB20 500A Jump Starter
24Whstored energy
Output pendingcontinuous output
Verified internal spec page
Verified Product Page in Jump Starter NOCO

NOCO Boost GB20 500A Jump Starter Review & Specs

Verified specifications, runtime planning, compatibility and buying options for this exact model.

Jump Starter 24Wh Capacity Motorcycles, powersports equipment, compact cars, and gasoline…
Battery Pending verification
Capacity 24Wh
Output Pending verification
Weight 2.1 lb
Best for

Motorcycles, powersports equipment, compact cars, and gasoline engines up to 4.0L

Research status

Current record status: Current.

Buying status Exact Amazon Match
Check Price on Amazon ↗ Add to Compare Review Methodology
Exact Amazon MatchCommerce routing follows the locked Amazon-only rule.
1 compatibility linksMapped expansion, accessory, or adjacent-system relationships.
How We VerifiedManufacturer-sourced specs plus internal normalization and evidence checks.

Best Battery Backups Spec Sheet

Capacity24 Wh
Weight2.1 lb
StatusCurrent

Runtime Estimates (24Wh)

Wi-Fi Router (10W) ~2 hrs
Laptop (60W) ~0.3 hrs
CPAP Machine (40W) ~0.5 hrs
Mini Fridge (120W) ~0.2 hrs
LED TV (100W) ~0.2 hrs

Planning estimates use 85% usable energy. Actual runtime varies.

Pros & Cons

  • 1 compatibility relationships mapped
  • Exact Amazon product match verified
  • Runtime changes with real device load

✓ Best For

  • Motorcycles, powersports equipment, compact cars, and gasoline engines up to 4.0L
  • Buyers comparing verified specifications
  • Runtime planning and backup sizing

× Not Ideal For

  • Loads above its continuous output
  • Buying without checking actual device wattage
  • Assuming every accessory is cross-compatible

Ports & Connectivity

  • 1 mapped cable / adapter requirements
NOCO Boost GB20 500A Jump Starter connectivity overview

Compatibility & Expansion

↔
12V lead-acid vehicle batteries; gasoline engines up to 4.0LMapped compatibility record
→

How We Verified / Evidence Methodology

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Specifications

Manufacturer/model data

⚖
Fit & Comparison

Capacity and output

⌁
Compatibility

Mapped accessories

✓
Evidence

No guessed product images

Source verified against manufacturer documentation. Learn more about our verification process →

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FAQ

How much power does this model store?

24Wh of nominal capacity is currently recorded.

Can this run a refrigerator?

It depends on running wattage and compressor surge. Use our runtime calculator with the appliance load.

Can capacity be expanded?

Expansion and compatibility relationships are listed above where verified.

Is it safe for sensitive electronics?

Check output type, voltage requirements and device manufacturer guidance before use.

What solar panels are compatible?

Solar-input details are still being verified.

Where should I buy it?

We have an exact Amazon product match for this model.

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186Product images populated
36Compatibility-mapped
94Exact Amazon matches

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Detailed Review & Buying Guide

The NOCO Boost GB20 is the smallest member of NOCO’s standard Boost family, built for motorcycles, powersports equipment, compact cars, and other 12-volt gasoline applications where portability matters more than maximum cranking capacity. Its 500-amp peak rating and 4.0-liter gasoline-engine limit make it a focused emergency tool rather than a universal jump pack. The compact body, protected USB ports, and included storage bag make it easy to keep with a bike, ATV, personal watercraft, or small car.

Quick verdict

Choose the GB20 when you want a small, straightforward jump starter for 12-volt gasoline engines up to 4.0 liters. It is not recommended for diesel engines, and owners of larger trucks or SUVs should step up to a higher-output model. For the right vehicle, however, the 2.1-pound format is easier to carry and store than the heavier packs designed for large engines.

Verified specifications

Peak starting current500 amps
Supported battery type12V lead-acid vehicle batteries
Internal battery24Wh lithium-ion
Engine ratingUp to 4.0L gasoline; diesel not recommended
USB5V/2.1A maximum input and output
Flashlight100 lumens
Weight2.1 lb
Ingress protectionIP65
Warranty1-year limited warranty

Where the GB20 fits

The model’s strongest use case is a smaller gasoline-powered vehicle that does not justify carrying a high-capacity pack. NOCO lists cars, motorcycles, boats, ATVs, and similar equipment among the applications, but the engine-size limit remains the deciding factor. A 4.0-liter gasoline ceiling covers many motorcycles, four-cylinder cars, compact crossovers, and powersports engines. It does not make the GB20 a safe choice for every vehicle in those categories, so check the vehicle’s engine displacement before ordering.

The internal 24Wh battery can also provide emergency USB power for a phone or another small device. That is useful at the roadside, although this is not a large travel power bank. The 100-lumen flashlight adds steady and emergency lighting modes for connecting clamps or signaling in low light.

Safety and operating limits

NOCO’s UltraSafe design includes spark-proof connection and reverse-polarity protection during normal operation. Those protections help with common connection mistakes, but they do not replace the vehicle manual or the GB20 instructions. Connect the clamps only to the approved points, keep the unit away from moving engine parts, and never use it with a battery system outside the stated 12-volt lead-acid compatibility.

A deeply discharged battery may require the manual-override function. Manual override disables important safety detection, so it should be used only after confirming correct polarity and following NOCO’s procedure. If the battery is damaged, leaking, frozen, or otherwise unsafe, do not attempt a jump start.

Charging, storage, and included items

The current package includes the GB20, powersport boost clamps, a USB-C-to-USB-C cable, microfiber storage bag, and safety and warranty information. Recharge the pack after use and at the interval specified in the manual. Store it dry, protected from extreme heat, and where its clamps cannot short against metal objects. Before a road trip or seasonal return to service, verify the charge level rather than assuming a pack stored for months is ready.

Who should buy it

The GB20 is best for riders and drivers who value compact storage and whose gasoline engine is within the verified 4.0-liter limit. Skip it for diesel engines, large-displacement gasoline engines, or anyone wanting the extra reserve of a larger Boost model. This page matches NOCO model GB20 to Amazon ASIN B015TKPT1A; the manufacturer specifications and exact Amazon listing were verified on August 28, 2026.