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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⚡ Power up your drive, stay unstoppable!

ULTRA SAFE TECH - Patented spark-proof & reverse polarity protection ensures foolproof, worry-free connections.
COMPACT RUGGED - Lightweight 2.4 lb design with IP65 water and dust resistance fits perfectly in your glove box.
INSTANT POWER SURGE - 500 amps to revive dead batteries in seconds—never get stranded again.
MULTIPLE JUMP STARTS - Up to 20 reliable engine boosts per full charge for ultimate road readiness.
ALL IN ONE EMERGENCY COMPANION - Built-in power bank charges your devices and a multi-mode LED flashlight lights the way.

The NOCOBoost GB20 is a compact, ultra-safe 500A lithium jump starter designed for 12V vehicles with up to 4.0L petrol engines. It delivers up to 20 jump starts per charge, features patented spark-proof and reverse polarity protection, and doubles as a portable power bank with a 100-lumen multi-mode LED flashlight. Rugged and lightweight, it’s engineered for quick, reliable roadside power and emergency device charging.

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935.43 DT

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Tunisiastore

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Manufacturer	NOCO
Brand	NOCO
Model	GB20
Product Dimensions	8.13 x 4.32 x 19.56 cm; 453.59 g
Batteries	1 Lithium Metal batteries required. (included)
Item model number	GB20
Exterior	Machined
Manufacturer part number	GB20
OEM Part Number	GB20
Bulb type	LED
Special Features	100 Lumen LED Flashlight, 500A 12V Portable Lithium Car Battery Jump Starter, Portable Power Bank for USB Devices, Reverse Polarity and Spark-Proof Protection
Lift type	12
Amperage	500 Amps
Item Weight	454 g

NOCO Boost GB20: 500A UltraSafe Jump Starter Power Pack – 12V Car Battery Booster, Portable Power Bank & Jump Leads - For 4.0L Petrol Engines

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