GOOLOO GP4000 4000A Peak Lithium Jump Starter
By Lee · Researched & cited, not personally tested · Updated Jul 2026
- Typical price · Jul 2026
- $90-130
- Best for
- Truck/diesel owners and value hunters who want the most cranking amps per dollar.
- Key spec
- 4000A peak; all gas / up to 10.0L diesel
- Skip it if
- Anyone comparing amp ratings head-to-head with NOCO or wanting a premium fit and finish — GOOLOO rates its 4000A more optimistically, so don't read it as double a NOCO 2000A.
Typical price · as of Jul 2026
$90-130
Key spec
4000A peak; all gas / up to 10.0L diesel
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High-output 4000A 12V lithium jump starter with USB-C and Quick Charge power-bank ports.
The high-power-for-the-money pick — 4000A covers essentially all gas engines and up to 10L diesel at a price well under premium-brand heavy-duty units; a consistent reviewer value favorite.
Best for Truck/diesel owners and value hunters who want the most cranking amps per dollar.
What earns it the pick
- 4000A peak
- all gas
- up to 10.0L diesel
The honest catch
What we’d want you to know before you buy.
- GOOLOO's amp ratings run higher and less conservative than NOCO's, so don't compare 4000A one-to-one.
- Reputable and well-reviewed, but a less premium finish than name-brand units.
GOOLOO's amp ratings run higher/less conservative than NOCO's, so don't compare 4000A one-to-one. Reputable and well-reviewed, less premium finish.
How it compares
GOOLOO GP4000 4000A Peak Lithium Jump Starter
- Price band
- $90-130
- Key spec
- 4000A peak; all gas / up to 10.0L diesel
- Verdict
- The high-power-for-the-money pick — 4000A covers essentially all gas engines and up to 10L diesel at a price well under premium-brand heavy-duty units; a consistent reviewer value favorite.
NOCO Boost GB40 1000A UltraSafe Lithium Jump Starter
- Price band
- $80-100
- Key spec
- 1000A peak; up to 6.0L gas / 3.0L diesel; ~20 jumps per charge
- Verdict
- The default best-overall. Trusted for honest (not inflated) amp ratings, UltraSafe spark-proof + reverse-polarity protection, and a genuinely pocketable size — the unit everything else is compared against.
NOCO Boost HD GB70 2000A UltraSafe Lithium Jump Starter
- Price band
- $150-180
- Key spec
- 2000A peak; up to 8.0L gas / 6.0L diesel; ~40 jumps per charge
- Verdict
- The heavy-duty pick — doubles the GB40's output for trucks, vans, boats and diesels while keeping NOCO's safety pedigree. What serious truck/RV owners buy.
You're viewing GOOLOO GP4000 4000A Peak Lithium Jump Starter | AlternativeSimilar price | AlternativePricier | |
|---|---|---|---|
| Price band | $90-130 | $80-100 | $150-180 |
| Key spec | 4000A peak; all gas / up to 10.0L diesel | 1000A peak; up to 6.0L gas / 3.0L diesel; ~20 jumps per charge | 2000A peak; up to 8.0L gas / 6.0L diesel; ~40 jumps per charge |
| Verdict | The high-power-for-the-money pick — 4000A covers essentially all gas engines and up to 10L diesel at a price well under premium-brand heavy-duty units; a consistent reviewer value favorite. | The default best-overall. Trusted for honest (not inflated) amp ratings, UltraSafe spark-proof + reverse-polarity protection, and a genuinely pocketable size — the unit everything else is compared against. | The heavy-duty pick — doubles the GB40's output for trucks, vans, boats and diesels while keeping NOCO's safety pedigree. What serious truck/RV owners buy. |
| This page | See its case → | See its case → |
Same category, ranked by our research priority. Specs and price bands are approximate — confirm the current price on Amazon.
The Decision Receipt
- Why it's here
- The high-power-for-the-money pick — 4000A covers essentially all gas engines and up to 10L diesel at a price well under premium-brand heavy-duty units; a consistent reviewer value favorite.
- Who should buy it
- Truck/diesel owners and value hunters who want the most cranking amps per dollar.
- Who should skip it
- Anyone comparing amp ratings head-to-head with NOCO or wanting a premium fit and finish — GOOLOO rates its 4000A more optimistically, so don't read it as double a NOCO 2000A.
- The main tradeoff
- You get the most rated cranking amps per dollar in exchange for a less premium build and less conservative amp ratings than a name brand.
- What could change this
- If you value honest, conservative amp ratings over headline numbers, the NOCO GB70 is the safer spec even at a higher price; verify current pricing, since GOOLOO and NOCO heavy-duty units overlap on sale.
Built from the live Amazon listing, manufacturer specs, and owner-review patterns — not personally lab-tested. Prices are approximate; confirm the current price on Amazon.
What owners actually report
Aggregated from real verified-buyer reviews and long-term owner reports — not our own hands-on test. Basis: ~4.6 stars from 8,500+ Amazon ratings.
- Inflated 4000A peak-amp claim. Independent load-testers measure only a few hundred sustained amps, far below the headline 4000A burst figure, though still enough to start most engines.
- Quality-control / DOA units. Owners report units dead out of the box or cables with thin cracked insulation exposing copper, plus difficulty getting refunds from GOOLOO.
- Cold weather + self-discharge in storage. Extreme cold cuts starts-per-charge and the cell self-discharges, so GOOLOO itself says recharge every 2-3 months and avoid long glovebox/trunk storage.
Owners report multi-year service (some 5+ years still working), but only with periodic recharging; material quality rated a notch below NOCO.
Research trail
How every recommendation is built. We research, compare, and cite — we don’t take payment for placement, and we don’t claim to personally lab-test.
- Specs & manuals checked
- Warranty & support reviewed
- Owner-review patterns analyzed
- Price history tracked
- Independent reviews cross-referenced
- Safety / recall checks where relevant
Decided it’s the one?
Check the live price and exact model on Amazon.
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