AstroAI S8
#1 in Cars and SUVsFull review
A tiny, cheap starter for four- and six-cylinder cars. Fine as a glovebox backup, but not for trucks or V8s.
Amazon $42.19$42.19
3.5/5
A stylish, very compact pack for cars and small SUVs up to 7 liters that doubles as a phone charger. Pick it for portability, not for big trucks or deep cold.
- 7 L gas, 5 L dieselEngines
- 44.4 WhBattery
- YesOverride
- 1.3 lbWeight
- 1 yearWarranty
Check price at Amazon$89.99
Price checked October 22, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Cup-sized and 1.3 lb, fits a cup holder or backpack
- Force start for a dead battery
- Built-in retractable cable charges a phone
- Screen shows voltage and battery level
Cons
- Rated only down to 5 °F
- Pricey for a 7 L rating
- One-year warranty
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 | Potent T10 |
|---|---|
| Starting | |
| Rated engines | 7 L gas, 5 L diesel |
| Peak amps (maker) | 1,800 A |
| Voltage | 12 V |
| Manual override | Yes |
| Lowest operating temperature | 5 °F |
| Battery and charging | |
| Chemistry | Lithium-ion |
| Capacity | 44.4 Wh |
| Capacity (mAh) | 12,000 mAh |
| USB-C input | 30 W |
| Build | |
| Flashlight | Yes |
| Air compressor | No |
| Weight | 1.3 lb |
| Warranty | 1 year |
Alternatives in this engine size
AstroAI S8 Air
#2 in Cars and SUVsFull review
A combined jump starter and tire inflator for small and mid-size cars. Good for drivers who want one compact roadside kit, not for trucks.
Amazon $59.99$59.99
NOCO Boost Plus GB40
#4 in Cars and SUVsFull review
For drivers of four- and six-cylinder cars who want a proven, compact pack to keep in the car. Owners of bigger engines should step up to a GBX55 or larger.
Amazon $99.95$99.95
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