NOCO Boost GB40: 1000A UltraSafe Jump Starter – 12V Lithium Battery Booster Pack, Portable Jump Box, Power Bank & Jumper Cables…
NOCO
Best for
Best for everyday cars
Amazon rating
Amazon aggregate, one input among many in the Verdict Score
Based on 1 trusted source
Current price
$99.95
Updated May 17, 2026 · 1 min read
Sources behind this verdict
10 reviewers weighted by source trust
The consensus
What reviewers found
Synthesized across the trust-weighted source mix below.
Across the reviewers we read, the NOCO GB40 is the volume default for sedans, compacts, and smaller SUVs. Its Amazon listing carries more than 126,000 reviews at 4.6 stars — the largest sample in this category by a wide margin — and that volume is backed by an r/MechanicAdvice commenter (the highest-trust community tier in the data) who specifically called out buying one on sale and using it successfully on a truck. Enthusiast coverage at secondlifestorage.com and trail4runner.com treats the GB40 as the entry point in the NOCO Boost line, suitable for engines up to 6.0L gas and 3.0L diesel.
What reviewers liked
- Largest review base in the category (126,000+ Amazon reviews) at a 4.6 average
- r/MechanicAdvice high-trust endorsement specifically by name
- Compact enough to leave in a glove box per retailer reviewers
- NOCO's reverse-polarity and spark-proof safety system included at the entry price
Where it falls short
- 1000A is undersized for larger SUVs, trucks, and diesels per manufacturer engine-displacement ratings
- r/VEDC thread documents a GB40 that didn't work on first emergency use
- Older NOCO Boost units in r/VEDC have shown battery swelling after roughly a year
- No USB-C PD, AC inverter, or air compressor
Across the reviewers we read, the NOCO GB40 is the volume default for sedans, compacts, and smaller SUVs. Its Amazon listing carries more than 126,000 reviews at 4.6 stars — the largest sample in this category by a wide margin — and that volume is backed by an r/MechanicAdvice commenter (the highest-trust community tier in the data) who specifically called out buying one on sale and using it successfully on a truck. Enthusiast coverage at secondlifestorage.com and trail4runner.com treats the GB40 as the entry point in the NOCO Boost line, suitable for engines up to 6.0L gas and 3.0L diesel.
The pattern of complaints is consistent across sources: r/VEDC has reports of failures (one user's GB40 didn't work when needed; a longer-running thread documents a swelled battery on an older Boost unit), and reviewers note the 1000A rating is marginal for cold-weather diesel starts. For owners of one or two passenger cars who want NOCO's safety features and warranty at the lowest price tier, mainstream retailer reviewers and the high-trust subreddit consensus still point here.
- START DEAD BATTERIES — Instantly start dead batteries with 1000 amps of peak lithium power. Up to 20 starts per charge on engines up to 6.0L gas and 3.0L diesel.
- ULTRASAFE TECHNOLOGY — Engineered with patented spark-proof and reverse polarity protection for foolproof connections to any 12V vehicle - no sparks, no wrong connections.
- PORTABLE POWER BANK — Integrated power bank delivers emergency power to smartphones, tablets, and more. Recharges in 3 hours so it’s ready when it matters most.
- INTEGRATED LED FLASHLIGHT — Precision-engineered 100-lumen LED with 7 light modes, including SOS and strobe. Illuminate repairs, emergencies, or low-light environments.
- COMPACT YET POWERFUL — High-discharge lithium technology delivers exceptional starting performance in a compact 2.5 lb form factor - perfectly sized for glove boxes and emergency kits.
- BUILT TOUGH — Rugged IP65-rated housing with rubberized over-molding protects against water, dust, and impact. Includes high-conductivity clamps for maximum energy transfer.
- WHAT’S IN THE BOX — GB40 jump starter, heavy-duty clamps, USB-C charging cable, and microfiber storage bag. Backed by a 1-year warranty and engineered in the USA.
The NOCO Boost Plus GB40 is like insurance for your sanity. It's not the cheapest option out there, but it's reliable, easy to use, and might just save your ...
Strong jump start, plus built-in pump and light. It costs a bit more, but the all-in-one setup is super convenient.
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“NOCO Boost GB40 Jump Starter Review” · YouTube
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