GOOLOO GT4000S
#1 in Heavy dutyFull review
A compact pack that covers big V8s and most diesel pickups and recharges in about an hour over USB-C. A strong pick for truck owners who also want a laptop power bank.
Amazon $99.99$99.99
3.9/5
For drivers in very cold places, or who leave a jump starter in the car for years and forget to charge it. Most people get more for their money from a lithium pack.
- all gasEngines
- YesOverride
- 11.5 lbWeight
Check price at Amazon$199.99
Price checked October 22, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Never needs charging at home: it tops itself up from the weak car battery in minutes
- Rated to work down to -45 °F, colder than lithium packs
- Can sit in a hot car without the fire risk of a lithium battery
- Rated for over a million uses
Cons
- Needs some charge left in the car battery (or another 12 V source) to fill its capacitors first
- About 11 lb, several times heavier than a lithium pack
- No published warranty or engine-size rating
How it scores
The rating comes from 4 measured or published factors, each scored 0-100 against fixed reference points for its engine size. How we rank explains each one.
Specifications
| Model number | SC6000G |
|---|---|
| Starting | |
| Rated engines | all gas |
| Peak amps (maker) | 6,000 A |
| Voltage | 12 V |
| Manual override | Yes |
| Lowest operating temperature | -45 °F |
| Battery and charging | |
| Chemistry | Supercapacitor |
| Build | |
| Air compressor | No |
| Weight | 11.5 lb |
Alternatives in this engine size
DBPOWER Z07 5000A
#2 in Heavy dutyFull review
A cheap, high-rated pack for cars and V8 trucks with IP65 sealing. A budget pick, but confirm it handles a fully dead battery before relying on it.
Amazon $44.79$44.79
Antigravity XP-20-HD Micro-Start
#4 in Heavy dutyFull review
For owners of big gas trucks and diesel pickups who want a compact pack that recharges fast over USB-C. Cheaper packs cover smaller engines just as well.
Amazon $249.99$249.99
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