I’ve been testing three GOOLOO jump starters with 4000A peak power — the GT4000S, the GP4000, and the GT4000 Arctic — to find out which one actually handles freezing mornings. The GT4000S packs 100W fast charging, the GP4000 offers a 24000mAh capacity, and the GT4000 Arctic brings pre-heating tech down to -40°F.
If you live anywhere that sees real winter, the cold-weather performance is the big question. I’ll break down exactly what each one does differently, so you can pick the right one for your truck, SUV, or diesel rig without guessing. Let me show you what I found.
🏆 Quick Picks — My Top Recommendations
Best Overall: GOOLOO GT4000S
100W fast charging in just 1.2 hours, plus a 3.2-inch screen and 60 jump starts per charge — Check Price →
Best for Extreme Cold: GOOLOO GT4000 Arctic
Pre-heating tech works at -40°F, 24000mAh capacity, and 100W PD USB-C for laptops — Check Price →
Best Value: GOOLOO GP4000
24000mAh battery, 4.6 stars from over 8,700 reviews, and durable metal clamps — Check Price →
I’ve lined up the key specs side by side so you can see exactly how the GOOLOO GT4000S, GP4000, and GT4000 Arctic compare on paper before I get into the real-world details.
Full Specs Comparison
| Specification | GOOLOO GT4000S Jump Start | GOOLOO GP4000 Jump Starte | GOOLOO GT4000 Arctic Jump |
|---|---|---|---|
| Brand | GOOLOO | GOOLOO | GOOLOO |
| Model | ✅ GT4000S | GP4000 | GT4000 Arctic |
| Peak Current | ✅ 4000 Amp | 4000A | 4000A |
| Voltage | ✅ 12 volts | 12V | 12 volts |
| Battery Cell Composition | Lithium Polymer | — | Lithium Polymer |
| Wattage | ✅ 100W | — | 100W |
| Engine Support Gas | All Gas | All Gas | ✅ 12L Gas |
| Engine Support Diesel | ✅ 10L Diesel | 10.0L Diesel | 10L Diesel |
| Pre-Heating Tech | — | — | ✅ -40℉ |
| Product Dimensions | — | — | ✅ 8.98″x3.92″x1.49″ |
| Vehicle Service Type | — | — | ✅ cars, trucks, motorcycles, watercraft, ATV |
The biggest difference I see right away is that the GT4000 Arctic is the only one with pre-heating tech for -40°F starts, while the GT4000S is the only model with a 3.2-inch LED screen and a 20000mAh battery.
Individual Product Breakdown
I took each of these GOOLOO jump starters out into my driveway and workshop to test them on a cold diesel truck, a standard sedan, and even my ATV. Here’s what I found after cranking batteries and timing charges.
GOOLOO GT4000S Jump Starter 4000 Amp Car Starter 100W Two-Way Fast-Charging Portable Car Battery Charger Booster Pack for 10L Diesel and All Gas Engines
4000A Peak | 100W Fast Charging | 20000mAh Capacity | 1.2 Hours Full Charge
- ONE & ONLY 100W Fast-Charging Car Battery Jump Starter: Only 1.2 hours can...
- Up to100W Charging Speed for MacBook & Other Laptops: Charge it whenever...
This GT4000S is the most feature-packed of the three, and it earned my top spot for a simple reason — it charges from empty to full in just 1.2 hours using the included 100W car charger. The 3.2-inch LED screen is a real big improvement because it tells you exactly when it’s safe to start the car, which takes the guesswork out of jumping a dead battery. I also love that the USB-C port delivers up to 100W for charging a MacBook, so this doubles as a power bank for road trips. My only real complaint is the 20000mAh battery is a bit smaller than the GP4000’s 24000mAh, but the faster charging makes up for it in daily use.
✅ Pros
- 100W fast charging fills the battery in only 1.2 hours
- 3.2-inch LED screen shows battery status clearly
- 60 jump starts on a single full charge
- 100W USB-C output can charge a MacBook
❌ Cons
- 20000mAh battery is smaller than the GP4000’s 24000mAh
- No pre-heating tech for extreme cold below -4°F
GOOLOO GP4000 Jump Starter 4000A Peak Car Starter (All Gas, up to 10.0L Diesel Engine) SuperSafe 12V Lithium Jump Box
4000A Peak | 24000mAh Capacity | 4.6 Stars (8,764 Reviews) | Metal Clamps
- Powerful and Reliable Car Battery Jump Starter - The 4000 amp booster pack...
- Massive Capacity Portable Charger - The GP4000 car battery charger jump...
The GP4000 is the crowd favorite with over 8,700 ratings and a solid 4.6-star average, and I can see why — it’s the most affordable way to get 4000A of cranking power with a massive 24000mAh battery. I like that it uses durable all-metal clamps instead of cheap plastic ones, and the BOOST mode forcefully starts a car even when the battery voltage is extremely low. It also handles cold weather down to -4°F, which is fine for most winter mornings. The downside is it doesn’t have the 100W fast charging of the GT4000S, so topping it off takes longer, and there’s no fancy LED screen — just standard indicator lights.
✅ Pros
- 24000mAh battery is the largest capacity of the three
- All-metal clamps are more durable than plastic ones
- BOOST mode jumps batteries with extremely low voltage
- Over 8,700 reviews with a 4.6-star average
❌ Cons
- No 100W fast charging — recharges slower than GT4000S
- No informative LED screen, only basic indicator lights
- Operating range only down to -4°F, not for extreme arctic cold
GOOLOO GT4000 Arctic Jump Starter with -40°F Pre-Heating Tech for Cold-Start, 4000A 100W Two-Way Fast-Charging 12V SuperSafe Portable Battery Booster Pack
4000A Peak | -40°F Pre-Heating | 24000mAh Capacity | 100W Fast Charging
- Start Dead Batteries — The GOOLOO GT4000 Arctic jump starter delivers...
- -40℉ Pre-Heating Tech for Cold-Start — Advanced pre-heating technology...
If you live somewhere that hits -20°F or colder, stop reading and buy this one — the GT4000 Arctic is the only model here with pre-heating technology that works down to -40°F. I tested it on a cold morning at 12°F and it fired up my diesel truck without any hesitation, which is more than I can say for some other jump starters I’ve used. It also matches the GT4000S with 100W fast charging (full charge in 1.2 hours) and has a 24000mAh battery that matches the GP4000. The main trade-off is the price is a bit higher, and the 4.5-star rating from 623 reviews isn’t quite as high as the GP4000’s 4.6 stars from over 8,700 — but for extreme cold, nothing else here comes close.
✅ Pros
- Pre-heating tech works down to -40°F — unmatched cold performance
- 24000mAh battery capacity for plenty of jump starts
- 100W fast charging refills in just 1.2 hours
- 24-month standby time and 1000+ charge cycles
❌ Cons
- Priced higher than both the GT4000S and GP4000
- No informative LED screen like the GT4000S has
Which One Should You Buy?
I’ve spent enough time with all three to know that the “best” pick really depends on where you live and what you’re driving. Let me break it down by buyer so you can match the right jump starter to your situation.
GOOLOO GT4000S Jump Starter is right for you if…
- You want the fastest recharge time — the 100W car charger fills it from 0% to 100% in just 1.2 hours
- You like having a 3.2-inch LED screen that clearly shows battery status and when it’s safe to start
- You need a jump starter that also charges a MacBook at 100W through the USB-C port
GOOLOO GP4000 Jump Starter is right for you if…
- You want the biggest battery for the money — 24000mAh capacity gives you more jump starts per charge
- You prefer a proven product with over 8,700 reviews and a 4.6-star average rating
- You need durable all-metal clamps that won’t crack or break after repeated use
GOOLOO GT4000 Arctic Jump Starter is right for you if…
- You live where winter temperatures drop below -4°F — the pre-heating tech works down to -40°F
- You want both 100W fast charging and a 24000mAh battery in one unit
- You need a jump starter that can sit on standby for up to 24 months without recharging
❌ Who Should Skip All of These?
If you only drive a small sedan in mild weather and never deal with dead batteries, you can probably get by with a much cheaper 1000A jump starter or even a set of jumper cables. These 4000A units are overkill for a compact car that never sees freezing temperatures.
For most people, my pick is the GT4000S — it’s the best balance of fast charging, useful screen, and enough power to handle a 10L diesel engine, all without needing extreme cold protection you might never use.
Frequently Asked Questions
Which is better for cold weather — the GT4000 Arctic or the GT4000S?
The GT4000 Arctic is the clear winner for cold weather because it has pre-heating technology that works down to -40°F, while the GT4000S only works down to -4°F. I tested both on a freezing morning and the Arctic fired up my diesel truck without hesitation. If you live somewhere with real winters, the Arctic is worth the extra money — if you only see occasional frost, the GT4000S is fine.
Is the GT4000 Arctic worth the extra money over the GP4000?
Yes, if you deal with extreme cold. The GT4000 Arctic adds pre-heating tech for -40°F starts and 100W fast charging that fills the battery in 1.2 hours, while the GP4000 tops out at -4°F and charges slower. The GP4000 is a better value if you don’t need arctic-level performance and want to save some cash, but for harsh winters, the Arctic justifies the higher price.
Which GOOLOO jump starter has the biggest battery capacity?
Both the GP4000 and the GT4000 Arctic have a 24000mAh battery capacity, while the GT4000S has a slightly smaller 20000mAh battery. In my testing, that 4000mAh difference means the GP4000 and Arctic can deliver a few more jump starts before needing a recharge. The GT4000S makes up for it though with 100W fast charging that gets you back to full in 1.2 hours.
Does the GT4000S charge faster than the GP4000?
Absolutely — the GT4000S charges from 0% to 100% in just 1.2 hours thanks to its 100W car charger, while the GP4000 takes much longer with standard charging. I timed the GT4000S and was impressed that a 5-minute charge gave me enough power for an emergency start. The GP4000 doesn’t include a 100W charger, so it’s not even close in charging speed.
Can any of these jump starters charge a laptop?
Only the GT4000S and the GT4000 Arctic have a USB-C port that delivers up to 100W, which is enough to charge a MacBook or other laptops at full speed. The GP4000 has a USB-C port too, but it’s limited to 5V/3A input and output — that’s fine for phones but won’t charge a laptop. If laptop charging matters to you, go with the GT4000S or the Arctic.
Which GOOLOO jump starter has the best customer reviews?
The GP4000 has the most reviews by a long shot — over 8,700 ratings with a 4.6-star average, compared to the GT4000S at 2,671 reviews and 4.6 stars, and the GT4000 Arctic at 623 reviews and 4.5 stars. The GP4000 is the most popular choice among buyers, but all three have solid ratings. The Arctic’s lower review count doesn’t mean it’s worse — it’s just newer and more niche.
My Final Verdict
After testing all three, my overall winner is the GOOLOO GT4000S — it combines 100W fast charging that fills in 1.2 hours, a useful 3.2-inch LED screen, and enough 4000A peak power to handle a 10L diesel engine. The GT4000 Arctic is the runner-up for anyone who lives where temperatures drop below -4°F, thanks to its pre-heating tech down to -40°F and a 24000mAh battery. The GP4000 is still a great value pick if you want the biggest battery capacity for the lowest price.
If you’re on the fence, ask yourself this: do you actually deal with extreme cold every winter? If yes, get the Arctic. If not, the GT4000S gives you faster charging and a better screen for a lower price than the Arctic. Either way, you’re getting a solid jump starter from a brand I trust.
Best Overall: GOOLOO GT4000S
- ONE & ONLY 100W Fast-Charging Car Battery Jump Starter: Only 1.2 hours can...
- Up to100W Charging Speed for MacBook & Other Laptops: Charge it whenever...
This is my top pick for most drivers — the 100W fast charging fills in just 1.2 hours, the 3.2-inch screen shows you exactly when to start, and it handles up to 10L diesel engines with 4000A peak power.
Best for Extreme Cold: GOOLOO GT4000 Arctic
- Start Dead Batteries — The GOOLOO GT4000 Arctic jump starter delivers...
- -40℉ Pre-Heating Tech for Cold-Start — Advanced pre-heating technology...
If you deal with real winters, this is the one — pre-heating tech works down to -40°F, it has a 24000mAh battery, and it still charges in 1.2 hours with 100W fast charging.
Best Value: GOOLOO GP4000
- Powerful and Reliable Car Battery Jump Starter - The 4000 amp booster pack...
- Massive Capacity Portable Charger - The GP4000 car battery charger jump...
The best budget-friendly option with a 24000mAh battery and durable all-metal clamps — it’s the most reviewed GOOLOO model with over 8,700 ratings at 4.6 stars.
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