Is this capable of starting up a V8? and I don't mean the tomato juice...:)

I it fires my 2020 Lexus 5.7 liter V8 right away with absolutely no problems. I've noticed on my 2016Ford Explorer twin turbo ecoboost if the battery 100% dead sometimes if you wait 1 or 2 minutes then it'll start right up. I also had to watch a you tube video in the beginning because I wasn't do it correctly, after that I've started about 7 other cars with it as well as a diesel truck

How long does the charge for the jumper last. dead batteries are few and far in between. If i were to charge it will it last a year, 2 years?

Mine lasted 6 years, in fairness it did not get charged up periodically. I bought it in 2016, it now won’t take a charge anymore. But, I used it 7 or 8 times in those 6 years (Vintage cars) and it saved my butt each time. For $100 I feel like that’s a fair trade. It lasted about as long as I expected. I will probably buy another

What is the operating temperature range? Can it be safely left in the hot car in the middle of summer (180 degrees or more)?

The people saying this can be stored up to 180°F are wrong. The manual specifically states storage temperature range of 120°F max with a daily avg of 0-77°F. Max operating temp is 120°F, "NEVER operate above this temperature." There is a warning to never exceed 180°F, this is the temperature at which the battery could explode. These are NOT meant to be stored in a hot vehicle. You may get away with it, or not.

Will this start a Gel Battery?

I found this on the NOCO faq page.... What types of batteries can Boost jump? All Boost models (except the GB500 Boost Max) can jump start 12V lead acid batteries only. This includes wet, gel, maintenance free, enhanced flooded battery, and absorbent glass mat batteries. The GB500 Boost Max is capable of jump starting 12V and 24V acid batteries.

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NOCO Boost GB40: 1000A UltraSafe Jump Starter – 12V Lithium Battery Booster Pack, Portable Jump Box, Power Bank & Jumper Cables - for 6.0L Gas and 3.0L Diesel Engines

NOCO Boost GB40: 1000A UltraSafe Jump Starter – 12V Lithium Battery Booster Pack, Portable Jump Box, Power Bank & Jumper Cables - for 6.0L Gas and 3.0L Diesel Engines

Product ID: 21550364

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Details

Brand
NOCO
Product Dimensions
4.61"D x x
Amperage
1000 Amps
Peak Output Current
1000 Amps
Specification Met
UL

⚡1000A peak lithium power

🔋Up to 20 jump starts per charge

🔦100-lumen LED with 7 light modes

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Description

⚡ Power up your drive, anytime, anywhere!

INSTANT POWER SURGE - 1000 amps to revive dead batteries in seconds, no more waiting around.
FOOLPROOF SAFETY TECH - Patented spark-proof & reverse polarity protection ensures zero connection errors.
RUGGED COMPACT DESIGN - IP65-rated, impact-resistant, and lightweight—fits perfectly in your glove box or emergency kit.
ALL IN ONE PORTABLE POWER - Doubles as a power bank for your devices, recharges fully in just 3 hours.
RELIABLE MULTI START CAPACITY - Up to 20 engine starts per full charge—be ready for any roadside emergency.

The NOCONOCO Boost GB40 is a compact yet powerful 1000A lithium jump starter designed for 12V vehicles with up to 6.0L gas or 3.0L diesel engines. It offers up to 20 jump starts per charge, integrated spark-proof and reverse polarity protection, and a versatile 100-lumen LED flashlight with multiple modes. Built tough with IP65-rated housing and rubberized over-molding, it also functions as a portable power bank for USB devices, recharging fully in 3 hours. Lightweight and portable at 2.35 lbs, it’s engineered for reliable emergency power on the go.

Specifications

Brand	NOCO
Product Dimensions	4.61"D x 8.19"W x 4.21"H
Amperage	1000 Amps
Peak Output Current	1000 Amps
Specification Met	UL
Cable Length	23 Inches
Manufacturer	NOCO
UPC	046221150025
Global Trade Identification Number	00046221150025
Automotive Fit Type	Universal Fit
Model	GB40
Item Weight	2.35 pounds
Item model number	GB40
Batteries	Lithium Metal batteries required. (included)
Is Discontinued By Manufacturer	No
Exterior	Machined
Manufacturer Part Number	GB40
OEM Part Number	GB40
Bulb Type	LED
Special Features	100 Lumen LED Flashlight, 1000A 12V Portable Lithium Car Battery Jump Starter, Portable Power Bank for USB Devices, Reverse Polarity and Spark-Proof Protection

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