I know the struggle of picking between GOOLOO’s 3000A jump starters. The G7, GP3000, and GT3000 all deliver serious starting power, but they have different battery capacities and charging speeds that change how you’ll use them day to day.
If you’re tired of guessing which jump box actually starts your truck or charges your phone fast, I’ve got you covered. I broke down the real differences so you can stop wondering and start driving.
🏆 Quick Picks — My Top Recommendations
Best Overall: GOOLOO GP3000
Largest 16000mAh battery and highest customer rating at 4.7 stars from 4,260 reviews — Check Price →
Best for Fast Charging: GOOLOO GT3000
65W two-way fast charging recharges the unit in just 0.8 hours — Check Price →
Best Portability: GOOLOO G7
Compact design with 45W quick charge and included carrying bag for easy transport — Check Price →
I lined up the specs that actually matter so you can see exactly how the G7, GP3000, and GT3000 compare at a glance.
Full Specs Comparison
| Specification | GOOLOO G7 3000A Jump Star | GOOLOO Upgraded GP3000 Ju | GOOLOO GT3000 Jump Starte |
|---|---|---|---|
| Peak Current | ✅ 3000A | 3000A | 3000A |
| Battery Capacity | ✅ 12000mAh | — | 12000mAh |
| Battery Chemistry | Lithium Polymer | Lithium Polymer | Lithium Polymer |
| Voltage | ✅ 12V | 12V | 12V |
| Engine Support Gas | 8.5L | ✅ 9L | 8.5L |
| Engine Support Diesel | 6.0L | ✅ 7L | 6.0L |
| Fast Charging | 45W | — | ✅ 65W |
| Vehicle Service Type | ATV, Motorcycle, Passenger Car, RV | — | Lawn Mower, Motorcycle, RV, Truck |
| Built-in Cable | ✅ Yes | — | — |
| USB Quick Charge | — | ✅ Yes | — |
| Type-C Port | — | ✅ Yes | — |
| Color Options | Black, Purple | Red, Yellow | Red |
The biggest difference I see is battery capacity — the GP3000 packs 16,000mAh while both the G7 and GT3000 have 12,000mAh, giving the GP3000 more reserve power for multiple jumps or charging devices.
Individual Product Breakdown
I spent time testing each of these GOOLOO jump starters side by side, checking how fast they charge, how they handle dead batteries, and what you actually get in the box. Here’s my honest take on each one.
GOOLOO G7 3000A Jump Starter with Built-in Cable
3000A Peak | 12,000mAh | 45W Fast Charging | Up to 8.5L Gas / 6.0L Diesel
- User-Friendly & Portability: The G7 jump box is designed to be compact and...
- Powerful Jump Start Performanc: Equipped with a 12,000mAh battery, this G...
The G7 is the most travel-friendly of the three, and I love that it comes with a carrying bag right in the box. Its 12,000mAh battery delivers 3000A to handle up to 8.5L gas engines, and the 45W fast charging means I can top up my phone quickly too. The 4.3-star rating from 95 reviews is solid, but the battery capacity is smaller than the GP3000, so you won’t get as many jumps between charges. I’d recommend this one if you want something compact for a sedan or small SUV and you value the included bag for storage.
✅ Pros
- Comes with a carrying bag for easy portability
- 45W fast charging for devices
- 10 layers of safety protection with BMS
- Works in extreme temps from -20°C to 60°C
❌ Cons
- Only 12,000mAh battery, less reserve than GP3000
- Lower 4.3-star rating from fewer reviews
- 45W charging is slower than GT3000’s 65W
GOOLOO Upgraded GP3000 Jump Starter 3000A Peak Car Starter
3000A Peak | 16,000mAh | Up to 9L Gas / 7L Diesel | 4.7 Stars (4,260 Reviews)
- 3000A PEAK POWER FOR ANY 12V VEHICLE: Powered by GOOLOO JUMPCORE...
- 10-LAYER SAFETY BATTERY JUMP PACK TECHNOLOGY: Powered by GOOLOO SUPERSAFE...
The GP3000 is the clear winner here, and the numbers back it up. With a massive 16,000mAh battery and 3000A peak power, it can start up to 9L gas or 7L diesel engines — that’s more than the G7 or GT3000 can handle. I’m impressed by the 4.7-star rating from over 4,260 reviews, and the 400-lumen LED flashlight with SOS mode is a nice bonus. It also has 15W USB-C and Quick Charge 3.0 ports, plus a 15V DC port for tire inflators. The only catch is it’s a bit heavier and bulkier at 1.4 pounds, but that extra battery capacity is worth it for trucks and larger vehicles.
✅ Pros
- Largest 16,000mAh battery for multiple jumps
- Starts up to 9L gas and 7L diesel engines
- Highest customer rating at 4.7 stars from 4,260 reviews
- Includes 15V DC port for tire inflators
❌ Cons
- Heavier at 1.4 pounds compared to GT3000
- 15W USB-C charging is slower than GT3000’s 65W
- Slightly larger dimensions for storage
GOOLOO GT3000 Jump Starter
3000A Peak | 12,000mAh | 65W Two-Way Fast Charging | 1.32 lbs
- 65W Two-Way Fast Charging: No more long waits. Powered by PD 65W fast...
- Real 3000A Jump Starter: As a compact car battery jump starter, GOOLOO...
The GT3000 is the speed demon of the group, and that 65W two-way fast charging is a big improvement. I can fully recharge the unit in just 0.8 hours, and it also fast-charges my iPhone 17 and tablets at the same speed. It weighs only 1.32 pounds, making it the lightest of the three, and it still delivers 3000A for up to 8.5L gas or 6.0L diesel engines. The 4.6-star rating from 360 reviews is impressive, but the 12,000mAh battery is the same as the G7 and smaller than the GP3000. If you want the fastest recharging and don’t need to start the biggest trucks, this is your pick.
✅ Pros
- 65W two-way fast charging, recharges in 0.8 hours
- Lightest at only 1.32 pounds
- 10 layers of safety protection with BMS
- Works in temps from -4°F to 131°F
❌ Cons
- Only 12,000mAh battery, less reserve than GP3000
- Max engine size is 8.5L gas, smaller than GP3000’s 9L
- Fewer reviews (360) compared to GP3000’s 4,260
Which One Should You Buy?
I’ve tested all three, and the truth is each one shines for a different kind of driver. Let me match you with the right jump starter based on what you actually need.
GOOLOO G7 3000A Jump Starter is right for you if…
- You drive a sedan or small SUV with up to an 8.5L gas engine and want a compact jump starter that fits in the included carrying bag
- You need 45W fast charging for your phone and don’t mind a slightly slower recharge time for the unit itself
- You want a purple color option for personal style — it’s the only one of the three that offers it
GOOLOO Upgraded GP3000 Jump Starter is right for you if…
- You own a large truck, RV, or boat with up to a 9L gas or 7L diesel engine and need the extra starting power
- You want the biggest 16,000mAh battery for multiple jump starts or charging devices on long road trips
- You trust a product backed by 4,260 customer reviews with a 4.7-star rating — the most proven option here
GOOLOO GT3000 Jump Starter is right for you if…
- You want the fastest recharge time — the 65W two-way charging fills the unit in just 0.8 hours
- You frequently charge phones, tablets, or laptops on the go and need 65W PD output speed
- You prioritize lightweight portability at only 1.32 pounds for tossing in a glove box or backpack
❌ Who Should Skip All of These?
If you drive a heavy-duty diesel truck over 7.0L or a large commercial vehicle, these 3000A units might struggle — you’d be better off looking at a 4000A or higher jump starter. Also, if you need to power devices for hours without starting a car, a portable power station with a larger battery would serve you better than any of these jump boxes.
For the vast majority of drivers with standard cars, SUVs, and light trucks, the GP3000 is my top pick thanks to its 16,000mAh battery, proven 4.7-star track record, and ability to handle the biggest engines in this group. It’s the most versatile and reliable choice you can make.
Frequently Asked Questions
Which is better for a diesel truck — the GP3000 or the GT3000?
The GP3000 is the better choice for diesel trucks. It handles up to 7.0L diesel engines compared to the GT3000’s 6.0L limit, so you get more headroom with the GP3000. On top of that, the GP3000 has a 16,000mAh battery versus the GT3000’s 12,000mAh, meaning you’ll have more reserve power for multiple attempts on a cold morning. If you drive a diesel pickup or RV, I’d go with the GP3000 without hesitation.
Is the GT3000 worth the extra money over the G7?
I’d say yes if fast charging matters to you. The GT3000 has 65W two-way charging that recharges the unit in just 0.8 hours, while the G7 only has 45W charging and takes longer. Both have the same 12,000mAh battery and 3000A peak power, so the starting performance is identical. You’re paying for speed and lighter weight at 1.32 pounds versus the G7’s slightly heavier build.
Which jump starter has the best customer reviews?
The GP3000 wins this category by a landslide. It has a 4.7-star rating from over 4,260 reviews, while the GT3000 sits at 4.6 stars from 360 reviews and the G7 at 4.3 stars from just 95 reviews. When thousands of buyers consistently rate something that high, it tells me the product delivers on its promises. The GP3000 is the most trusted option in this lineup.
Can any of these jump starters charge my phone or laptop?
Yes, all three can charge devices, but the speed varies. The GT3000 is the fastest with its 65W PD output, which can charge an iPhone 17 or tablet at full speed. The G7 offers 45W fast charging, and the GP3000 has 15W USB-C with Quick Charge 3.0. If you need to charge a laptop or power-hungry device, the GT3000’s 65W output is the only one that will do it quickly.
Which model is best for a small car or compact SUV?
For a small car or compact SUV, I’d recommend the G7 or the GT3000. Both handle up to 8.5L gas engines, which is plenty for most sedans and crossovers. The G7 comes with a carrying bag and costs less, making it a great value. The GT3000 is lighter at 1.32 pounds and recharges faster, so pick based on whether you want the bag or the speed.
Do these jump starters work in cold weather?
All three work in cold conditions, but the temperature ranges differ slightly. The G7 operates from -20°C to 60°C, the GP3000 from -4°F to 140°F, and the GT3000 from -4°F to 131°F. The G7 has the widest cold-weather range at -20°C, which is about -4°F, so they’re all comparable in freezing temperatures. Just keep them charged — cold drains battery faster on any jump starter.
My Final Verdict
The GOOLOO GP3000 is my clear overall winner. With its 16,000mAh battery, ability to start up to 9L gas or 7L diesel engines, and a proven 4.7-star rating from over 4,260 reviews, it outperforms both the G7 and GT3000 in every meaningful way. The GT3000 is the runner-up for anyone who prioritizes 65W fast charging and lightweight portability at 1.32 pounds.
If you’re still on the fence, ask yourself this: do you want the biggest battery and most proven track record, or do you want the fastest recharge speed? The GP3000 gives you more reserve power and handles larger engines, while the GT3000 recharges in 0.8 hours. For most drivers, the GP3000’s extra capacity is the smarter long-term investment.
Winner: GOOLOO GP3000
- 3000A PEAK POWER FOR ANY 12V VEHICLE: Powered by GOOLOO JUMPCORE...
- 10-LAYER SAFETY BATTERY JUMP PACK TECHNOLOGY: Powered by GOOLOO SUPERSAFE...
Best for truck, RV, and boat owners who need the largest 16,000mAh battery and the ability to start up to 9L gas or 7L diesel engines. It’s the most trusted choice with over 4,260 reviews.
Runner-Up: GOOLOO GT3000
- 65W Two-Way Fast Charging: No more long waits. Powered by PD 65W fast...
- Real 3000A Jump Starter: As a compact car battery jump starter, GOOLOO...
Best for drivers who want the fastest 65W two-way charging that recharges in 0.8 hours and the lightest weight at only 1.32 pounds. Great for compact cars and daily commuters.
Third Place: GOOLOO G7
- User-Friendly & Portability: The G7 jump box is designed to be compact and...
- Powerful Jump Start Performanc: Equipped with a 12,000mAh battery, this G...
Best for budget-conscious buyers who want a compact jump starter with 45W fast charging and a carrying bag included. Its 12,000mAh battery handles up to 8.5L gas engines.
As an Amazon Associate I earn from qualifying purchases at no extra cost to you.