Would the GB20 start a 2l Diesel engine?i know it says not recommended for diesel, but why?

To answer the "why" part of your question, diesel engines have a much higher cylinder compression ratio, often reaching 18:1, compared to a petrol engine of around 12:1. This requires a higher torque from the starter motor to crank the engine, which itself draws more current from the battery. Also, the glow plugs in a diesel draw current to heat up, so this adds a little more to the drain on a battery.

How long does it hold its charge for?

It is rated to hold up to 70% charge for over 1 year.

Can I use this to jump start a Toyota Prius (hybrid)?

I also used this with great success on my Toyota CH-R 2.0 litre Hybrid

Is this unit a potential fire hazard if carried in top box or other compartments on a motorbike.

Only if you break the case and expose the battery. Not an easy thing to do.

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NOCO Boost GB20 500A Jump Starter Power Pack - 4.0L Petrol Engines

Product ID: 49264927

Details

Battery cell composition
Lithium Ion
Brand
NOCO
Product dimensions
11.7D x 20.8W
Vehicle service type
Boat Moto Car
Voltage
12 Volts

⚡500A peak lithium power

🔋Up to 20 starts per charge

🔦100-lumen LED with 7 modes

NT$8026

Duties & taxes included

In stock

Sold byAmazon TaiwanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Power up your peace of mind — jumpstart, charge, and light the way!

COMPACT POWERHOUSE - Weighing just 2.4 lbs with rugged IP65-rated housing, it fits effortlessly in your glove box or emergency kit.
READY WHEN YOU ARE - Fast 3-hour recharge cycle means it’s always charged and ready to rescue you from roadside emergencies.
INSTANT POWER SURGE - 500 amps of peak lithium power to jumpstart dead batteries in seconds, perfect for 4.0L petrol engines.
SAFETY FIRST ALWAYS - Patented spark-proof and reverse polarity protection ensures foolproof, worry-free connections every time.
MULTI TOOL EMERGENCY ESSENTIAL - Doubles as a portable power bank for your devices and features a versatile 100-lumen LED flashlight with SOS and strobe modes.

The NOCO Boost GB20 is a compact, ultra-safe 500A lithium-ion jump starter designed for 12V vehicles with engines up to 4.0L petrol. It offers up to 20 jump starts per charge, integrated LED flashlight with multiple modes, and doubles as a portable power bank. Rugged and lightweight with patented safety features, it’s engineered for reliable emergency power on the go.

Specifications

ASIN	B015TKPT1A
Amperage	500 Amps
Automotive Fit Type	Universal Fit
Battery Capacity	500 amp_hours
Best Sellers Rank	675 in Automotive ( See Top 100 in Automotive ) 13 in Car Battery Jump Starters
Brand Name	NOCO
Compatible with Vehicle Type	Boat, Moto, Passenger Car
Country Of Origin	China
Customer Reviews	4.6 4.6 out of 5 stars (13,077)
EU Spare Part Availability Duration	1 Years
Global Trade Identification Number	00046221150018
Included Components	GB20 Jump Starter Power Pack, Microfiber Storage Bag, USB Charging Cable, User Guide for Jump Starter, Warranty Information for Jump Starter
Item Dimensions D x W x H	11.7D x 20.8W x 10.7H centimetres
Item Type Name	Jump Starter
Item Weight	1 Pounds
Manufacturer	NOCO
Manufacturer Part Number	GB20
Manufacturer Warranty Description	1-Year Limited
Model Number	GB20
Number of Items	1
Number of Packs	1
Peak Output Current	500 Amps
Specification Met	UL
UPC	046221150018
Unit Count	1.0 count
Voltage	12 Volts
battery-cell-composition	Lithium Ion

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