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Deal.ai › Compare

NOCO Boost X GBX45 Jump Starter vs Noco Boost Plus GB40

The GBX45 is the stronger jump starter: 1250 amps, 6.5L gas and 4.0L diesel coverage, USB-C in and out at 60 watts, and a 48-minute recharge. The GB40 is smaller and simpler, with 1000 amps, 6.0L gas and 3.0L diesel, and a 100-lumen light with seven modes. Owners of the GB40 call it easy to use and easy to store, but some say power drains quickly and wish they had bought a larger model. Buy the GBX45 for bigger engines and fast USB-C charging; buy the GB40 for a light, basic car starter.

  • Choose the NOCO Boost X GBX45 if you drive a truck, SUV, van or diesel, or you want USB-C fast charging and a power bank that can top up a laptop.
  • Choose the NOCO Boost Plus GB40 if you mainly start cars and small gas engines and want a compact, simple unit you can keep in the trunk.

Prices

  • NOCO Boost X GBX45 Jump Starter: $99.95 at NOCO (last seen Nov 10)
  • Noco Boost Plus GB40: $99.95 at The Home Depot (last seen Nov 8)
  • Difference: both cost the same at the latest prices (Nov 8 and Nov 10)
NOCO
NOCO Boost X GBX45: 1250A 12V UltraSafe Portable Lithium Jump Starter

NOCO Boost X GBX45 Jump Starter

NOCO Boost X GBX45: 1250A 12V UltraSafe Portable Lithium Jump Starter

4.5(226 ratings)
$99.95at NOCOChecked 19 h ago
See all prices and details
Visit NOCO
Pros
  • 1250 amps starts larger gas and diesel engines
  • Full recharge in about 48 minutes over USB-C
  • 60W USB-C power bank charges laptops and tablets
  • IP65 rated with ports closed
  • Spark-proof clamps and reverse polarity protection
Cons
  • Heavier and longer than the GB40
  • Light has fewer modes than the GB40's seven
  • Costs more than the entry Boost Plus line
Noco
Noco Boost Plus GB40

Noco Boost Plus GB40

$99.95at The Home DepotChecked Nov 8
See all prices and details
Visit The Home Depot
Pros
  • Compact and easy to store in a car
  • Simple one-button operation
  • Seven light modes including strobe and SOS
  • Water resistant
  • Good fit for cars and small gas engines
Cons
  • 1000 amps and 3.0L diesel limit it on bigger engines
  • Slower micro USB recharge
  • Owners report power drains quickly with frequent use
  • No LCD status screen

What separates them

NOCO Boost X GBX45 Jump StarterNoco Boost Plus GB40
Starting current1250 amps1000 amps
Engine coverageUp to 6.5L gas and 4.0L dieselUp to 6.0L gas and 3.0L diesel
RechargeUSB-C Power Delivery, full charge in about 48 minutes, jump-ready after 5 minutesMicro USB and 12V car charger, slower recharge
Power bank output60W USB-C in and out, enough for laptops and tabletsUSB power bank for phones and small devices
Light100-lumen light100-lumen LED with seven modes, including strobe and SOS
Weather resistanceIP65 with ports closedWater resistant, no IP rating listed
Size and weightAbout 6.8 x 3.3 x 2.1 in, roughly 2.2 to 2.7 lbAbout 4 x 3 x 3 in, roughly 2.95 lb
Safety electronicsUltraSafe spark-proof clamps, reverse polarity protection, enhanced thermal managementUltraSafe spark-proof clamps and reverse polarity protection

Price history

$124.95$99.95
Nov 6Nov 11
  • NOCO Boost X GBX45 Jump Starter: lowest $99.95 on Nov 9 at NOCO; $99.95 on Nov 11.
  • Noco Boost Plus GB40: lowest $99.95 on Nov 8 at Amazon.

Prices at every store

NOCO Boost X GBX45 Jump Starter

  • NOCONew

    In stock

    $99.95Free shippingChecked 19 h ago
    Visit NOCO
  • WalmartNew

    In stock

    $124.95Free shippingChecked 19 h ago
    Visit Walmart
  • Best BuyNew

    In stock

    $124.95Free shippingChecked 19 h ago
    Visit Best Buy
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $124.95Free shippingChecked 19 h ago
    Visit Amazon

Also available at

  • WalmartCheck price at Walmart
  • eBayCheck price at eBay
  • CI MotorsportsCheck price at CI Motorsports

Store links may earn us a commission.

All 29 stores and price history →

Noco Boost Plus GB40

  • WalmartNew

    In stockSold by NOCOReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $99.95Free shippingChecked Nov 8
    Visit Walmart
  • The Home DepotNew

    In stock

    $99.95Free shippingChecked Nov 8
    Visit The Home Depot
  • TWISTNew

    In stock

    $195.12+ $8.99 shippingChecked Nov 8
    Visit TWIST
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $99.95Free shippingChecked Nov 8
    Visit Amazon

Also available at

  • WalmartCheck price at Walmart
  • eBayCheck price at eBay

Store links may earn us a commission. Some prices via Klarna.

All 6 stores and price history →

Specs compared

SpecNOCO Boost X GBX45 Jump StarterNoco Boost Plus GB40
colorGrayGray
Weight2.16 lb2.95 lb
Amps1250 A1000 A
BrandNOCONOCO
Power typeBatteryBattery
Vehicle fitment typeUniversalUniversal
Vehicle typeCarCar
Volts12 Volts12 Volts
AccessoriesHeavy-Duty Jumper Cable Clamps, USB-C Charging …Micro USB Charging Cable, 12-Volt Car Charger, …
ManufacturerNocoNoco
ModelGBX45GB40
Product lineBoost XBoost Plus
Show all 36 specsShow fewer specs
SpecNOCO Boost X GBX45 Jump StarterNoco Boost Plus GB40
Color categoryBlackGray
Vehicle modelGBX45GB40
Watts60 W24 Watts
SeriesExtreme SeriesGenius Boost
Starting current1250 Amps—
Capacity31 Wh—
Dimensions (LxWxH)6.83 x 3.28 x 2.08 in—
Operating temperature4ºF to 122ºF—
Charging temperature32°F to 104°F—
Gas engine rating

What reviewers say

NOCO Boost X GBX45 Jump Starter

  • 4.5 / 5226 ratings

Rated 4.5 out of 5 from 226 ratings. Owners like the fast USB-C recharge, the compact size and the simple, safe clamps. Complaints center on the small battery capacity and missing accessories.

What people mention
  • Recharge speedPraisedOwners say the USB-C recharge is quick and a few minutes of charge is enough for a jump.
  • Battery capacityCriticisedSome owners say the 31 Wh battery gives only a few jumps before it needs recharging.
  • Build and sizePraisedOwners call it compact and solid for its power.
  • AccessoriesCriticisedBuyers note the USB-C cable and charger are not included.
Reviews
  • The Best Portable Jump Starter Can Amp a Dead Land Cruiser 15 Times
  • The best portable jump starters of 2026: Expert tested - ZDNET

Questions and answers

Which is better for a diesel truck?
The GBX45. It is rated to 4.0L diesel against the GB40's 3.0L, and its 1250 amps give more margin on cold starts.
Is the GBX45 worth stepping up to from the GB40?
Yes if you want faster USB-C recharging, a 60W power bank or coverage for larger engines. The GB40 is enough for a typical gas car.
Which one lasts longer between charges?
The GBX45 has a 31 Wh battery and the GB40 is rated for up to 20 starts per charge. Owners of the GB40 say heavy use drains it quickly, so the GBX45 holds up better with frequent jumps.
Can either charge a phone or laptop?
Both work as power banks. The GBX45 delivers 60W over USB-C, enough for laptops and tablets. The GB40 is suited to phones and small devices.
Which is easier to keep in the car?
The GB40 is shorter and squarer, so it tucks into a glovebox or side pocket more easily. The GBX45 is longer but still light enough to store in a trunk.
Do both protect against hooking up the clamps backwards?
Yes. Both use NOCO's UltraSafe design with spark-proof clamps and reverse polarity protection, so a mistaken connection will not damage the unit.

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More comparisons

  • NOCO Boost Plus GB40 Jump Starter vs NOCO Boost X GBX45: 1250A 12V UltraSafe Portable Lithium Jump Starter
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  • Noco Boost Plus GB40 vs Hulkman Alpha 85 2000A Portable Jump Starter

Buying guides that pick them

  • Best portable car battery jump starters
up to 6.5L
—
Diesel engine ratingup to 4.0L—
Recharge time48 minutes—
USB-C power output60-watts—
Light output100-lumen—
IP ratingIP65 (w/ Ports Closed)—
Width (")6.83—
Height (")3.28—
Depth (")3.62—
Weight (lb)2.65—
Compatible carscars—
Battery capacity—2150 mAh
Automotive battery type—Lithium-Ion Battery
Dimensions—4 x 3 x 3 inches; 4.8 ounces
Size—1000A