ConsFirst / Portable jump starters / Compare
GOOLOO GT4000S Jump Starter vs NOCO Boost Plus GB40 (1000A)
Which one has the downsides you can live with?
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The short answer
GOOLOO GT4000S Jump Starter ranks higher (#1 vs #4 of 8) and scores better on starting power, holds a charge, ease & safety features. NOCO Boost Plus GB40 (1000A) wins on size & weight.
The biggest complaint about the GOOLOO GT4000S Jump Starter is bulky; for the NOCO Boost Plus GB40 (1000A) it's small battery, few jumps per charge. Pick the one whose catch bothers you less.
Side by side
| GOOLOO GT4000S Jump Starter | NOCO Boost Plus GB40 (1000A) | |
|---|---|---|
| Rank in portable jump starters | #1 | #4 |
| Price tier | $$ | $$ |
| Type | Lithium | Lithium |
| Amazon 1–2★ share | 0% | 5% |
| Overall score | 4.1 | 3.6 |
| Starting power | 4.5 | 3.0 |
| Holds a charge | 4.0 | 2.5 |
| Ease & safety features | 5.0 | 4.0 |
| Size & weight | 3.0 | 5.0 |
| Durability | — | 3.5 |
Price tiers: $ under $80 · $$ $80–180 · $$$ over $180. Highlighted = clearly better (a score gap of 0.3 or more, or a 1–2★ share at least 3 points lower). Scores are explained, with sources, on each product's page.
Top complaints
GOOLOO GT4000S Jump Starter
- Bulky
At 9 x 4 x 2 inches, CNN calls it a bit chunky, and it doesn't come with a hard-shell case.
Source: CNN Underscored - Awkwardly placed flashlight
CNN says the flashlight is on the opposite side from the cable port.
Source: CNN Underscored - Peak-amp claim is inflated
Gooloo advertises 4,000 peak amps. CNN measured roughly 360-480 A, and an AAA engineer told CNN that peak amps are more a marketing term than reality.
Source: CNN Underscored
NOCO Boost Plus GB40 (1000A)
- Small battery, few jumps per charge
Car and Driver measured 30 Wh, the lowest in its test. One jump on a badly drained battery took it from full to 25%, so the editors wouldn't count on more than one or two jumps per charge. CNN measured 24 Wh and needed to recharge after two heavy loads. Amazon's summary says battery life is mixed, with some owners reporting it won't recharge.
- Not enough power for some trucks and vans
Low-star Walmart reviews describe it failing to start a truck, a van and a completely dead 2024 F-150 (it only half cranked, then drained to zero). AutoGuide lists 'Only 1,000A' as a con and calls the maker's engine-size claims optimistic for larger engines.
Source: Walmart reviews (lowest rated), AutoGuide - Short leads and slow recharging
CNN found the 6-inch leads disappointingly short, and recharging takes two to three hours because the input is limited to 5 V, 2.1 A. Car and Driver also says the leads are extremely short and the clamps are hard to squeeze.
Source: CNN Underscored, Car and Driver
Who should pick which
Pick the GOOLOO GT4000S Jump Starter if
First-timers who want instructions on the unit
Most cars, SUVs and pickups (gas)
Using it as a USB-C power bank
Skip it if: You drive a big diesel truck; You want glove-box size; You want a hard case
Pick the NOCO Boost Plus GB40 (1000A) if
Glove-box storage for a car or small SUV
Drivers who want a simple, proven brand
Occasional emergency use
Skip it if: You need several jumps per charge; You drive a large truck or big V8; You want long cables
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